Yorba Linda City Council
June 18, 2024

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
4 EXHIBIT 1-A: HOUSING ELEMENT SITE LOCATION MAP

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
5 TABLE 1-1: SUMMARY OF HOUSING ELEMENT UNITS PER SITE
# HE Site ID Site Current Zoning Proposed Zoning Acres
Total Net
Unit
Potential
1 S1-021 W. of 16951 Imperial Highway CG Commercial Mixed Use Overlay 1.76 62 2 S1-200 SEC Rose Dr. & Blake Rd. RE RM-20 w/ Affordable Overlay 5.94 208 3 S2-008 17151 Bastanchury Rd. RE Congregational Land Overlay 4.92 60 4 S3-012 5320 Richfield Rd. RU Congregational Land Overlay 9.48 55 5 S3-207 5300-5392 Richfield Rd. RU RM-20 w/ Affordable Overlay 9.7 340 6 S2-013 4861 Liverpool St. RU Congregational Land Overlay 6.2 40 7 S3-074 18132 Yorba Linda Bl. CG RM-20 w/ Affordable Overlay 0.42 15 8 S3-024 Friends Church Overflow Parking RE Congregational Land Overlay 17.45 48 9 S3-033 4382 Eureka Av. RS Congregational Land Overlay 3.88 30 10 S3-210 18111 Bastanchury Rd. PD-26 Congregational Land Overlay 9.23 105 11 S3-082 4791 & 4811 Eureka Av. CG RM-20 w/ Affordable Overlay 1.75 61 12 S4-075 4742 Plumosa Dr. CG RM-20 w/ Affordable Overlay 1.62 57 13 S6-015 22722 Old Canal Rd. PD Affordable Housing Overlay 2.56 89 14 S6-020 22711 Oak Crest Circle PD RM-20 w/ Affordable Housing Overlay 10.35 143 15 S7-001 Bryant Ranch Shopping Center CG Commercial Mixed Use Overlay 9.15 320 16 S3-034 4341 Eureka Av. RS RM 2.19 22
18 S3-203 18101-18251 Bastanchury Rd. PD PD 22.83 228
19 S3-205A 5225 & 5227 Highland Av. RE RM 7.08 71
20 S4-200 18597-18602 Altrudy Ln. RS RM-20 2 40
21 S4-204A 19045 Yorba Linda Bl. RE Congregational Land Overlay 1.85 17 S4-204B 19081-19111 Yorba Linda Bl. RE RM-20 3.9 78
23 S3-211 17651 Imperial Highway RS RM 2.32 23
24 S4-053 SWC of Kellogg Dr. & Grandview Av. RE RM 0.98 10 25 S4-060 5541 S. Ohio St. RE RM 0.96 10
S4-201 5531 S. Ohio St. RE RM 1.82 18
26 S5-008 Fairmont Bl. PD RM 23.01 230
27 S7-005 NEC of Camino del Bryant & Meadowland RU RM 3.06 30 TOTAL 166.41 2,410

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
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Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
7 2 FUNDAMENTALS
Noise is simply defined as "unwanted sound." Sound becomes unwanted when it interferes with normal activities, when it causes actual physical harm or when it has adverse effects on health.

Noise is measured on a logarithmic scale of sound pressure level known as a decibel (dB). Aweighted decibels (dBA) approximate the subjective response of the human ear to broad frequency noise source by discriminating against very low and very high frequencies of the audible spectrum. They are adjusted to reflect only those frequencies which are audible to the human ear. Exhibit 2-A presents a summary of the typical noise levels and their subjective loudness and effects that are described in more detail below.

EXHIBIT 2-A: TYPICAL NOISE LEVELS
Source: Environmental Protection Agency Office of Noise Abatement and Control, Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety (EPA/ONAC 550/9-74-004) March 1974.

2.1 RANGE OF NOISE
Since the range of intensities that the human ear can detect is so large, the scale frequently used to measure intensity is a scale based on multiples of 10, the logarithmic scale. The scale for measuring intensity is the decibel scale. Each interval of 10 decibels indicates a sound energy ten times greater than before, which is perceived by the human ear as being roughly twice as loud. (2) The most common sounds vary between 40 dBA (very quiet) to 100 dBA (very loud). Normal conversation at three feet is roughly at 60 dBA, while loud jet engine noises equate to 110 dBA

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
8 at approximately 1,000 feet, which can cause serious discomfort. (3) Another important aspect of noise is the duration of the sound and the way it is described and distributed in time.

2.2 NOISE DESCRIPTORS
Environmental noise descriptors are generally based on averages, rather than instantaneous, noise levels. The most used metric is the equivalent level (Leq). Equivalent sound levels are not measured directly but are calculated from sound pressure levels typically measured in Aweighted decibels (dBA). The equivalent sound level (Leq) represents a steady state sound level containing the same total energy as a time varying signal over a given sample period and is commonly used to describe the “average” noise levels within the environment.

Peak hour or average noise levels, while useful, do not completely describe a given noise environment. Noise levels lower than peak hour may be disturbing if they occur during times when quiet is most desirable, namely evening and nighttime (sleeping) hours. To account for this, the Community Noise Equivalent Level (CNEL), representing a composite 24-hour noise level is utilized. The CNEL is the weighted average of the intensity of a sound, with corrections for time of day, and averaged over 24 hours. The time-of-day corrections require the addition of 5 decibels to dBA Leq sound levels in the evening from 7:00 p.m. to 10:00 p.m., and the addition of 10 decibels to dBA Leq sound levels at night between 10:00 p.m. and 7:00 a.m. These additions are made to account for the noise sensitive time periods during the evening and night hours when noise can become more intrusive. CNEL does not represent the actual sound level heard at any time, but rather represents the total sound exposure. The City of Yorba Linda relies on the 24-hour CNEL level to assess land use compatibility with transportation related noise sources.

2.3 SOUND PROPAGATION
When sound propagates over a distance, it changes in level and frequency content. The way noise reduces with distance depends on the following factors.

2.3.1 GEOMETRIC SPREADING
Sound from a localized source (i.e., a stationary point source) propagates uniformly outward in a spherical pattern. The sound level attenuates (or decreases) at a rate of 6 dB for each doubling of distance from a point source. Highways consist of several localized noise sources on a defined path and hence can be treated as a line source, which approximates the effect of several point sources. Noise from a line source propagates outward in a cylindrical pattern, often referred to as cylindrical spreading. Sound levels attenuate at a rate of 3 dB for each doubling of distance from a line source. (2)

2.3.2 GROUND ABSORPTION
The propagation path of noise from a highway to a receiver is usually very close to the ground.

Noise attenuation from ground absorption and reflective wave canceling adds to the attenuation associated with geometric spreading. Traditionally, the excess attenuation has also been expressed in terms of attenuation per doubling of distance. This approximation is usually

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
9 sufficiently accurate for distances of less than 200 ft. For acoustically hard sites (i.e., sites with a reflective surface between the source and the receiver, such as a parking lot or body of water), no excess ground attenuation is assumed. For acoustically absorptive or soft sites (i.e., those sites with an absorptive ground surface between the source and the receiver such as soft dirt, grass, or scattered bushes and trees), an excess ground attenuation value of 1.5 dB per doubling of distance is normally assumed. When added to the cylindrical spreading, the excess ground attenuation results in an overall drop-off rate of 4.5 dB per doubling of distance from a line source. (4)

2.3.3 ATMOSPHERIC EFFECTS
Receivers located downwind from a source can be exposed to increased noise levels relative to calm conditions, whereas locations upwind can have lowered noise levels. Sound levels can be increased at large distances (e.g., more than 500 feet) due to atmospheric temperature inversion (i.e., increasing temperature with elevation). Other factors such as air temperature, humidity, and turbulence can also have significant effects. (2)

2.3.4 SHIELDING
A large object or barrier in the path between a noise source and a receiver can substantially attenuate noise levels at the receiver. The amount of attenuation provided by shielding depends on the size of the object and the frequency content of the noise source. Shielding by trees and other such vegetation typically only has an “out of sight, out of mind” effect. That is, the perception of noise impact tends to decrease when vegetation blocks the line-of-sight to nearby residents. However, for vegetation to provide a substantial, or even noticeable, noise reduction, the vegetation area must be at least 15 feet in height, 100 feet wide and dense enough to completely obstruct the line-of-sight between the source and the receiver. This size of vegetation may provide up to 5 dBA of noise reduction. The Federal Highway Administration (FHWA) does not consider the planting of vegetation to be a noise abatement measure. (5)

2.4 NOISE CONTROL
Noise control is the process of obtaining an acceptable noise environment for an observation point or receiver by controlling the noise source, transmission path, receiver, or all three. This concept is known as the source-path-receiver concept. In general, noise control measures can be applied to these three elements.

2.5 NOISE BARRIER ATTENUATION
Effective noise barriers can reduce noise levels by 10 to 15 dBA, cutting the loudness of traffic noise in half. A noise barrier is most effective when placed close to the noise source or receiver.

Noise barriers, however, do have limitations. For a noise barrier to work, it must block the lineof-sight path of sound from the noise source.

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
10 2.6 LAND USE COMPATIBILITY WITH NOISE
Some land uses are more tolerant of noise than others. For example, schools, hospitals, churches, and residences are more sensitive to noise intrusion than are commercial or industrial developments and related activities. As ambient noise levels affect the perceived amenity or livability of a development, so too can the mismanagement of noise impacts impair the economic health and growth potential of a community by reducing the area’s desirability as a place to live, shop and work. For this reason, land use compatibility with the noise environment is an important consideration in the planning and design process. The FHWA encourages State and Local government to regulate land development in such a way that noise-sensitive land uses are either prohibited from being located adjacent to a highway, or that the developments are planned, designed, and constructed in such a way that noise impacts are minimized. (6)

2.7 COMMUNITY RESPONSE TO NOISE
Approximately sixteen percent of the population has a very low tolerance for noise and will object to any noise not of their making. Consequently, even in the quietest environment, some complaints may occur. Twenty to thirty percent of the population will not complain even in very severe noise environments. (7 pp. 8-6) Thus, a variety of reactions can be expected from people exposed to any given noise environment.

Surveys have shown that community response to noise varies from no reaction to vigorous action for newly introduced noises averaging from 10 dB below existing to 25 dB above existing. (8) According to research originally published in the Noise Effects Handbook (7), the percentage of high annoyance ranges from approximately 0 percent at 45 dB or less, 10 percent are highly annoyed around 60 dB, and increases rapidly to approximately 70 percent being highly annoyed at approximately 85 dB or greater. Despite this variability in behavior on an individual level, the population can be expected to exhibit the following responses to changes in noise levels as shown on Exhibit 2-B. A change of 3 dBA is considered barely perceptible, and changes of 5 dBA are considered readily perceptible. (4)
EXHIBIT 2-B: NOISE LEVEL INCREASE PERCEPTION

2.8 VIBRATION
Per the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual, vibration is the periodic oscillation of a medium or object. The rumbling sound caused 0 1 2 3 4 5 6 7 8 9 10
Just Perceptible
Barely Perceptible
Readily Perceptible
Twice as Loud
Noise Level Increase (dBA)

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
11 by the vibration of room surfaces is called structure-borne noise. Sources of ground-borne vibrations include natural phenomena (e.g., earthquakes, volcanic eruptions, sea waves, landslides) or human-made causes (e.g., explosions, machinery, traffic, trains, construction equipment). Vibration sources may be continuous, such as factory machinery, or transient, such as explosions. As is the case with airborne sound, ground-borne vibrations may be described by amplitude and frequency. Additionally, in contrast to airborne noise, ground-borne vibration outdoors is not a common environmental problem and annoyance from ground-borne vibration is almost exclusively an indoor phenomenon (8). Therefore, the effects of vibrations should only be evaluated at a structure and the effects of the building structure on the vibration should be considered. Wood-frame buildings, such as typical residential structures, are more easily excited by ground vibration than heavier buildings. In contrast, large masonry buildings with spread footings have a low response to ground vibration (8). In general, the heavier a building is, the lower the response will be to the incident vibration energy. However, all structurers reduce vibration levels due to the coupling of the building to the soil.

There are several different methods that are used to quantify vibration. The peak particle velocity (PPV) is defined as the maximum instantaneous peak of the vibration signal (8). The PPV is most frequently used to describe vibration impacts to buildings but is not always suitable for evaluating human response (annoyance) because it takes some time for the human body to respond to vibration signals. Instead, the human body responds to average vibration amplitude often described as the root mean square (RMS). The RMS amplitude is defined as the average of the squared amplitude of the signal and is most frequently used to describe the effect of vibration on the human body (8). However, the RMS amplitude and PPV are related mathematically, and the RMS amplitude of equipment is typically calculated from the PPV reference level. The RMS amplitude is approximately 70% of the PPV (9). Thus, either can be used in the description of vibration impacts.

While not universally accepted, vibration decibel notation (VdB) is another vibration notation developed and used by the FTA in their guidance manual to describe vibration levels and provide a background of common vibration levels and set vibration limits. (8) Decibel notation (VdB) serves to reduce the range of numbers used to describe vibration levels and is used in this report to describe vibration levels. As stated in the FTA guidance manual, the background vibrationvelocity level in residential areas is generally 50 VdB. Ground-borne vibration is normally perceptible to humans at approximately 65 VdB. For most people, a vibration-velocity level of 75 VdB is the approximate dividing line between barely perceptible and distinctly perceptible levels. Typical outdoor sources of perceptible ground-borne vibration are construction equipment, steel-wheeled trains, and traffic on rough roads. If a roadway is smooth, the groundborne vibration is rarely perceptible. The range of interest is from approximately 50 VdB, which is the typical background vibration-velocity level, to 100 VdB, which is the general threshold where minor damage can occur in fragile buildings. Exhibit 2-C illustrates common vibration sources and the human and structural response to ground-borne vibration.

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
12 EXHIBIT 2-C: TYPICAL LEVELS OF GROUND-BORNE VIBRATION Source: Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual.

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
13 3 REGULATORY SETTING
To limit population exposure to physically and/or psychologically damaging as well as intrusive noise levels, the federal government, the State of California, various county governments, and most municipalities in the state have established standards and ordinances to control noise. In most areas, automobile and truck traffic is the major source of environmental noise. Traffic activity generally produces an average sound level that remains constant with time. Air and rail traffic, and commercial and industrial activities are also major sources of noise in some areas.

Federal, state, and local agencies regulate different aspects of environmental noise. Federal and state agencies generally set noise standards for mobile sources such as aircraft and motor vehicles, while regulation of stationary sources is left to local agencies.

3.1 STATE OF CALIFORNIA NOISE REQUIREMENTS
The State of California regulates freeway noise, sets standards for sound transmission, provides occupational noise control criteria, identifies noise standards, and provides guidance for local land use compatibility. State law requires that each county and city adopt a General Plan that includes a Noise Element which is to be prepared per guidelines adopted by the Governor’s Office of Planning and Research (OPR). (10) The purpose of the Noise Element is to limit the exposure of the community to excessive noise levels. In addition, the California Environmental Quality Act (CEQA) requires that all known environmental effects of a project be analyzed, including environmental noise impacts.

3.2 STATE OF CALIFORNIA BUILDING STANDARDS
The State of California’s noise insulation standards are codified in the California Code of Regulations, Title 24, Building Standards Administrative Code, Part 2, and the California Building Code. These noise standards are applied to new construction in California for controlling interior noise levels resulting from exterior noise sources. The regulations specify that acoustical studies must be prepared when noise-sensitive structures, such as residential buildings, schools, or hospitals, are developed near major transportation noise sources, and where such noise sources create an exterior noise level of 60 dBA CNEL or higher. Acoustical studies that accompany building plans for noise-sensitive land uses must demonstrate that the structure has been designed to limit interior noise in habitable rooms to acceptable noise levels. For new residential buildings, schools, and hospitals, the acceptable interior noise limit for new construction is 45 dBA CNEL.

3.3 CITY OF YORBA LINDA ADOPTED GENERAL PLAN NOISE ELEMENT City of Yorba Linda previously adopted a Noise Element of the General Plan (Chapter 12), to protect citizens from excessive exposure to noise conflicts and problems. (11) The Noise Element Policy Program identifies the following goals and polices related to noise:

Goal N-1: Indoor and outdoor living areas that are adequately protected from excessive transportation noise impacts.

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
14 Policies:

N-1.1 Ensure existing transportation noise sources comply with the City’s noise ordinance.

N-1.2 Consider appropriate technologies to mitigate excessive noise levels where necessary or where feasible
N-1.3 Ensure noise mitigation measures are clearly articulated and implemented prior to the approval of new roadway projects.

N-1.4 Ensure potentially excessive noise generators provide for the highest feasible level of noise mitigation and compliance with local, state, and federal noise standards.

N-1.5 Promote alternative transportation modes such as walking, bicycling, equestrian transportation, and transit to contribute to reducing or minimizing potential noise impacts Goal N-2: Noise and land use compatibility.

Policies:

N-2.1 Ensure compliance with the City’s established noise thresholds for various land uses.

N-2.2 Ensure compliance with the City’s established noise thresholds for noise sensitive receptors, land uses, and activities.

N-2.3 Ensure noise producing land uses and activities are designed and located to consider impacts to adjacent uses and activities.

Goal N-3: Mitigate noise impacts from non-transportation sources Policies:

N-3.1 Ensure compliance with standards and procedures for mitigating construction related activities that introduce excessive noise levels.

N-3.2 Promote coordination among City agencies involved in noise abatement.

Goal N-4: Mitigate noise impacts from non-transportation sources Policies:

N-4.1 Consider noise impacts in the siting, design, and construction of new development to minimize noise impacts.

N-4.2 Consider alternative architectural layouts as a means of meeting noise requirements.

N-4.3 Consider a combination of noise barriers, landscape berms, and architectural design treatments when needed to mitigate noise impacts.

N-4.4 Consider measures which alter, prohibit or mitigate noise generating uses through site design.

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
15 3.3.1 LAND USE COMPATIBILITY
The Noise Element provides several policies to ensure compatibility of land uses with their existing and future noise environments (Goal N-2) that includes establishing acceptable noise levels for various land uses. The City of Yorba Linda has adopted the transportation noise criteria contained in the California Office of Planning and Research (OPR) General Plan Guidelines. (12) The OPR land use/noise compatibility standards are used by many California cities and counties and specify the maximum noise levels allowable for new developments impacted by transportation noise sources. The OPR land use/noise compatibility criteria, found in Figure 2 of the General Plan Guidelines, Appendix D: Noise Element Guidelines. (12) The noise criteria identified in the City of Yorba Linda General Plan Noise Element, are guidelines to evaluate the land use compatibility of transportation-related noise. The compatibility criteria, shown on Exhibit 3-A, provide City of Yorba Linda with a planning tool to gauge the compatibility of land uses relative to existing and future exterior noise environment.

Single-family residential uses are considered normally acceptable with exterior noise levels of up to 60 CNEL and conditionally acceptable up to 70 CNEL. Multi-family residential land use is considered normally acceptable in exterior noise environments up to 65 CNEL and conditionally acceptable up to 70 CNEL. Schools, libraries, and churches are considered normally acceptable up to 70 CNEL, as are office buildings and business, commercial and professional uses. (11) A conditionally acceptable designation indicates that new construction or development should be undertaken only after a detailed analysis of the noise reduction requirements is made and needed noise insulation features are incorporated in the design. Conventional construction, but with windows closed and fresh air supply systems or air conditioning will normally suffice. By comparison, a normally acceptable designation indicates that standard construction can occur with no special noise reduction requirements.

3.3.2 TRANSPORTATION NOISE STANDARDS
To control transportation-related noise sources such as arterial roads, freeways, airports, and railroads, City of Yorba Linda has established the land use compatibility guidelines for exterior noise levels as previously described, and shown on Exhibit 3-A. For noise-sensitive uses, the Noise Element identifies the exterior noise level of 65 dBA CNEL for conditionally acceptable use.

In addition, an interior noise level standard of 45 dBA CNEL for noise-sensitive interior uses is utilized in this Noise and Vibration Impact Analysis consistent with California Code of Regulations, Title 24, Building Standards for residential use.

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
16 EXHIBIT 3-A: CRITERIA FOR NOISE-COMPATIBLE LAND USE
Source: City of Yorba Linda General Plan Noise Element Adopted October 2016, Page N-9.

3.4 CITY OF YORBA LINDA MUNICIPAL CODE
To analyze noise impacts originating from a designated fixed location or private property such as the Yorba Linda Housing Element Update, stationary-source (operational) noise such as the expected residents moving around each of the sites, residential air conditioning units, and parking lot activities are typically evaluated against standards established under a jurisdiction’s Municipal Code. For all noise-sensitive residential properties, Section 8.32.060 of the Municipal Code identifies stationary source noise level limits for the daytime (7:00 a.m. to 10:00 p.m.) hours of 55 dBA Leq and 50 dBA Leq during the nighttime (10:00 p.m. to 7:00 a.m.) hours. (13) The exterior noise level standards shall apply for a cumulative period of more than 30 minutes in any hour, as well as the standard plus 5 dBA for a cumulative period of more than 15 minutes in any hour, or the standard plus 10 dBA for a cumulative period of more than 5 minutes in any hour, or the standard plus 15 dBA for a cumulative period of more than 1 minute in any hour, or the standard plus 20 dBA for any period of time. Further, Section 8.32.060 indicates that if the

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
17 existing ambient noise level already exceeds any of the exterior noise level limit categories, then the standard shall be adjusted to reflect the ambient conditions. The City of Yorba Linda Municipal Code noise standards are shown on Table 3-1 and included in Appendix 3.1.

TABLE 3-1: STATIONARY SOURCE NOISE LEVEL STANDARDS
Land
Use
Time
Period
Exterior Noise Level Standards (dBA)2
L50
(30
mins)
L25
(15
mins)
L8
(5 mins)
L2
(1 min)
Lmax
(Anytime)
Residential1
Daytime (7:00 a.m. to 10:00 p.m.) 55 60 65 70 75
Nighttime (10:00 p.m. to 7:00 a.m.) 50 55 60 65 70
1 Noise Zone 1 includes all residential properties in the City (Municipal Code, Section 8.32.050). 2 Exterior noise standards (Municipal Code, Section 8.32.060).

The percent noise level is the level exceeded "n" percent of the time during the measurement period. L50 is the noise level exceeded 50% of the time. .

The percentile noise descriptors are provided to ensure that the duration of the noise source is fully considered. However, due to the relatively constant intensity of the Project stationary source activities, the L50 or average Leq noise level metrics best describe the residents moving around each of the sites, residential air conditioning units, and parking lot activities. In addition, the Leq noise level metric accounts for noise fluctuations over time by averaging the louder and quieter events and giving more weight to the louder events. In addition, due to the mathematical relationship between the median (L50) and the mean (Leq), the Leq will always be larger than or equal to the L50. The more variable the noise becomes, the larger the Leq becomes in comparison to the L50. Therefore, this noise study conservatively relies on the average Leq sound level limits to describe the Project stationary source noise levels.

3.5 CONSTRUCTION NOISE STANDARDS
According to Section 8.32.090[D] of the Municipal Code, noise sources associated with construction-related activities are typically exempt provided the activities do not take place between the hours of 7:00 a.m. to 8:00 p.m. on weekdays, including Saturday, or at any time on Sunday or federal holidays. While the City establishes limits to the hours during which construction activity may take place, neither the City of Yorba Linda General Plan or Municipal Codes establish numeric maximum acceptable construction source noise levels at potentially affected receivers, which would allow for a quantified determination of what CEQA constitutes a substantial temporary or periodic noise increase. Therefore, a numerical construction threshold based on Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual is used for analysis of daytime construction impacts, as discussed below.

According to the FTA, local noise ordinances are typically not very useful in evaluating construction noise. They usually relate to nuisance and hours of allowed activity, and sometimes specify limits in terms of maximum levels, but are generally not practical for assessing the impact of a construction project. Project construction noise criteria should account for the existing noise environment, the absolute noise levels during construction activities, the duration of the construction, and the adjacent land use. Due to the lack of standardized construction noise

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18 thresholds, the FTA provides guidelines that can be considered reasonable criteria for construction noise assessment. The FTA considers a daytime exterior construction noise level of 80 dBA Leq as a reasonable threshold for noise sensitive residential land use with a nighttime exterior construction noise level of 70 dBA Leq (8 p. 179).

3.6 VIBRATION STANDARDS
Construction activity can result in varying degrees of ground-borne vibration, depending on the equipment and methods used, distance to the affected structures and soil type. Construction vibration is generally associated with pile driving and rock blasting. Other construction equipment such as air compressors, light trucks, hydraulic loaders, etc., generates little or no ground vibration. (8) To analyze vibration impacts originating from the Yorba Linda Housing Element Update, vibration-generating activities are appropriately evaluated against standards established under a City’s Municipal Code if such standards exist. However, the City of Yorba Linda does not identify specific vibration level limits. Therefore, for analysis purposes, the Caltrans Transportation and Construction Vibration Guidance Manual, (9 p. 38) Table 19, vibration damage are used in this noise study to assess potential temporary construction-related impacts at adjacent building locations. The nearest noise sensitive buildings adjacent to the 18 vacant or underutilized sites can best be described as “older residential structures” with a maximum acceptable continuous vibration threshold of 0.3 PPV (in/sec).

While ground vibrations from construction activities do not often reach the levels that can damage structures, fragile buildings must receive special consideration. Fragile buildings represent structures and/or finishes that are possibly weakened due to the method of construction (such as unreinforced masonry) and deterioration with age and/or lack of adequate maintenance. Therefore, a more conservative maximum acceptable continuous vibration threshold for fragile buildings of 0.10 PPV (in/sec) is used.

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
19 4 SIGNIFICANCE CRITERIA
The following significance criteria are based on currently adopted guidance provided by Appendix G of the California Environmental Quality Act (CEQA) Guidelines (1). For the purposes of this report, impacts would be potentially significant if the Project results in or causes:

A. Generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies?
B. Generation of excessive ground-borne vibration or ground-borne noise levels? C. For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels?

4.1 NOISE LEVEL INCREASES (THRESHOLD A)
Noise level increases resulting from the Project are evaluated based on the Appendix G CEQA Guidelines described above at the closest sensitive receiver locations. Under CEQA, consideration must be given to the magnitude of the increase, the existing baseline ambient noise levels, and the location of noise-sensitive receivers to determine if a noise increase represents a significant adverse environmental impact. This approach recognizes that there is no single noise increase that renders a noise impact significant. (15) This is primarily because of the wide variation in individual thresholds of annoyance and differing individual experiences with noise. Thus, an important way of determining a person’s subjective reaction to a new noise is the comparison of it to the existing environment to which one has adapted—the so-called ambient environment. In general, the more a new noise exceeds the previously existing ambient noise level, the less acceptable the new noise will typically be judged.

The Federal Interagency Committee on Noise (FICON) (16) developed guidance to be used for the assessment of project-generated increases in noise levels that consider the ambient noise level.

The FICON recommendations are based on studies that relate aircraft noise levels to the percentage of persons highly annoyed by aircraft noise. Although the FICON recommendations were specifically developed to assess aircraft noise impacts, these recommendations are often used in environmental noise impact assessments involving the use of cumulative noise exposure metrics, such as the average-daily noise level (CNEL) and equivalent continuous noise level (Leq).

The FICON guidance provides an established source of criteria to assess the impacts of substantial temporary or permanent increase in ambient noise levels. Based on the FICON criteria, the amount to which a given noise level increase is considered acceptable is reduced when the without Project noise levels are already shown to exceed certain land-use specific exterior noise level criteria. The specific levels are based on typical responses to noise level increases of 5 dBA or readily perceptible, 3 dBA or barely perceptible, and 1.5 dBA depending on the underlying without Project noise levels for noise-sensitive uses. These levels of increases and their perceived acceptance are consistent with guidance provided by both the Federal Highway Administration (4 p. 9) and Caltrans (17 p. 2_48).

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
20 4.2 VIBRATION (THRESHOLD B)
As described in Section 3.6, the vibration impacts originating from the construction of the Yorba Linda Housing Element Update, vibration-generating activities are appropriately evaluated using the Caltrans vibration damage thresholds to assess potential temporary construction-related impacts at adjacent building locations. Most buildings near the 27 vacant or underutilized sites can best be described as “older residential structures” with a maximum acceptable continuous vibration threshold of 0.3 PPV (in/sec). A more conservative maximum acceptable continuous vibration threshold for fragile buildings of 0.10 PPV (in/sec) is used.

4.3 CEQAGUIDELINES NOT FURTHER ANALYZED (THRESHOLD C)
CEQA Noise Threshold C applies when there are nearby public and private airports and/or air strips and focuses on land use compatibility of the Project to nearby airports and airstrips. The Project site is not located within two miles of an airport or airstrip. The closest airport is the John Wayne Airport located roughly 13 miles southwest of the city. As such, the Project site would not be exposed to excessive noise levels from airport operations, and therefore, impacts are considered less than significant, and no further noise analysis is conducted in relation to Appendix G to the CEQA Guidelines, Noise Threshold C.

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21 4.4 SIGNIFICANCE CRITERIA SUMMARY
Noise impacts shall be considered significant if any of the following occur as a direct result of the proposed development. Table 4-1 shows the significance criteria summary matrix that includes the allowable criteria used to identify potentially significant incremental noise level increases.

TABLE 4-1: SIGNIFICANCE CRITERIA SUMMARY
Analysis Condition(s)
Significance Criteria
Daytime Nighttime
Off-Site
Traffic1
If ambient is < 60 dBA CNEL ≥ 5 dBA CNEL Project increase If ambient is 60 - 65 dBA CNEL ≥ 3 dBA CNEL Project increase If ambient is > 65 dBA CNEL ≥ 1.5 dBA CNEL Project increase StationarySource
Exterior Noise Level Standards2 55 dBA Leq 50 dBA Leq
If ambient is < 60 dBA Leq1 ≥ 5 dBA Leq Project increase If ambient is 60 - 65 dBA Leq1 ≥ 3 dBA Leq Project increase If ambient is > 65 dBA Leq1 ≥ 1.5 dBA Leq Project increase Construction
Exempt provided the activities do not take place between the hours of eight p.m. and seven a.m. on weekdays, including Saturday, or at any time on Sunday or federal holidays.3
Noise Level Threshold4 80 dBA Leq 70 dBA Leq
Vibration Level Threshold5

0.3 PPV (in/sec)6

0.1 PPV (in/sec)7
1 FICON, 1992.
2 City of Yorba Linda Municipal Code, Section 8.32.060 (See Table 3-1) 3 City of Yorba Linda Municipal Code, Section 8.32.090[D] (See Table 3-1) 4 Federal Transit Administration, Transit Noise and Vibration Impact Assessment Manual. 5 Caltrans Transportation and Construction Vibration Manual, April 2020 Table 19. 6 Older Residential Structures.
7 Fragile Buildings.
"Daytime" = 7:00 a.m. to 10:00 p.m.; "Nighttime" = 10:00 p.m. to 7:00 a.m.

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23 5 EXISTING NOISE LEVEL MEASUREMENTS
To assess the existing noise level environment, noise level measurements were taken at ten sensitive receiver locations near the vacant or underutilized sites for multifamily residential use.

The receiver locations were selected to describe and document the existing noise environment within the Project study area. Exhibit 5-A provides the boundaries of the Project study area and the noise level measurement locations. To fully describe the existing noise conditions, noise level measurements were collected by Urban Crossroads, Inc. on Thursday, May 5, 2022. Since the environmental factors such as traffic patterns, and the physical environment have not significantly changed since 2022, it is expected that these existing measurements accurately describe the baseline ambient conditions. Appendix 5.1 includes study area photos and details of the individual noise level measurement locations.

5.1 MEASUREMENT PROCEDURE AND CRITERIA
To describe the existing noise environment, the hourly noise levels were measured during typical weekday conditions over a 24-hour period. By collecting individual hourly noise level measurements, it is possible to describe the equivalent daytime and nighttime hourly noise levels. The long-term noise readings were recorded using Piccolo Type 2 integrating sound level meter and dataloggers. The Piccolo sound level meters were calibrated using a Larson-Davis calibrator, Model CAL 150. All noise meters were programmed in "slow" mode to record noise levels in "A" weighted form. The sound level meters and microphones were equipped with a windscreen during all measurements. All noise level measurement equipment satisfies the American National Standards Institute (ANSI) standard specifications for sound level meters ANSI S1.4-2014/IEC 61672-1:2013. (18)

5.2 NOISE MEASUREMENT LOCATIONS
The long-term noise level measurements were positioned as close to the nearest sensitive receiver locations as possible to assess the existing ambient hourly noise levels surrounding the Project site. Both Caltrans and the FTA recognize that it is not reasonable to collect noise level measurements that can fully represent every part of a private yard, patio, deck, or balcony normally used for human activity when estimating impacts for new development projects. This is demonstrated in the Caltrans general site location guidelines which indicate that sites must be free of noise contamination by sources other than sources of interest. Avoid sites located near sources such as barking dogs, lawnmowers, pool pumps, and air conditioners unless it is the express intent of the analyst to measure these sources. (2) Further, FTA guidance states, that it is not necessary nor recommended that existing noise exposure be determined by measuring at every noise-sensitive location in the project area. Rather, the recommended approach is to characterize the noise environment for clusters of sites based on measurements or estimates at representative locations in the community (8).

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24 Based on recommendations of Caltrans and the FTA, it is not necessary to collect measurements at each individual building or residence, because each receiver measurement represents a group of buildings that share acoustical equivalence. (8) In other words, the area represented by the receiver shares similar shielding, terrain, and geometric relationship to the reference noise source. Receivers represent a location of noise sensitive areas and are used to estimate the future noise level impacts. Collecting reference ambient noise level measurements at the nearby sensitive receiver locations allows for a comparison of the before and after Project noise levels and is necessary to assess potential noise impacts due to the Project’s contribution to the ambient noise levels.

5.3 NOISE MEASUREMENT RESULTS
The noise measurements presented below focus on the average or equivalent sound levels (Leq).

The equivalent sound level (Leq) represents a steady state sound level containing the same total energy as a time varying signal over a given sample period. Table 5-1 identifies the hourly daytime (7:00 a.m. to 10:00 p.m.) and nighttime (10:00 p.m. to 7:00 a.m.) noise levels at each noise level measurement location.

TABLE 5-1: 24-HOUR AMBIENT NOISE LEVEL MEASUREMENTS
Location1 Description
Energy Average
Noise Level
(dBA Leq)
2 CNEL
Daytime Nighttime
L1 Site S1-021 - Vacant Parcel (W of 16951 Imperial Hwy) 55.4 51.9 59.5 L2 Site S2-008 - Friendship Baptist Church (17151 Bastanchury Rd.) 60.3 55.3 63.1 L3 Site S3-012 - Richfield Community Church (5320 Richfield Rd.) 49.0 42.1 50.7 L4 Site S2-013 - Messiah Lutheran Church (4861 Liverpool St.) 61.4 45.8 60.1 L5 Site S3-210 - Shinno-En USA (18111 Bastanchury Rd.) 58.0 52.5 60.6 L6 Site S4-075 - 4742 Plumosa Drive 51.9 47.6 55.4
L7 Site S6-015 - 22722 Old Canal Road 59.1 56.9 64.0
L8 Site S5-008 - Vacant Parcel on Fairmont Boulevard 66.0 60.0 68.3 L9 Site S3-024 - Friend Church Overflow Parking 55.1 47.6 56.7 L10 Site S4-204B - 19081-19111 Yorba Linda Blvd. 57.8 52.0 60.1 1 See Exhibit 5-A for the noise level measurement locations. 2 Energy (logarithmic) average levels. The long-term 24-hour measurement worksheets are included in Appendix 5.2. "Day" = 7:00 a.m. to 6:00 p.m.; "Evening" = 6:00 p.m. to 10:00 p.m.; "Night" = 10:00 p.m. to 7:00 a.m.

Table 5-1 provides the (energy average) noise levels used to describe the daytime and nighttime ambient conditions. These daytime and nighttime energy average noise levels represent the average of all hourly noise levels observed during these time periods expressed as a single number. Appendix 5.2 provides summary worksheets of the noise levels for each hour as well as the minimum, maximum, L1, L2, L5, L8, L25, L50, L90, L95, and L99 percentile noise levels observed during the daytime and nighttime periods.

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25 EXHIBIT 5-A: NOISE MEASUREMENT LOCATIONS

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27 6 NOISE/LAND USE COMPATIBLITY
The Noise Element identifies several polices to minimize the impacts of excessive noise levels throughout the community and establishes noise level requirements for all land uses. The compatibility criteria, shown on Exhibit 3-A, provides the city with a planning tool to gauge the compatibility of land uses relative to existing and future exterior noise levels. The Criteria for Noise Compatible Land Use describes categories of compatibility and not specific noise standards.

Table 6-1 summarizes the existing ambient noise level conditions in relation to the compatibility guidelines identified in the City of Yorba Linda Noise Element (Exhibit 3-A).

The General Plan Noise/Land Use Compatibility guidelines are provided to address potential noise impacts to future residents of the Yorba Linda Housing Element Update. While the General Plan considers potential impacts from the environment to future Project developments, land use compatibility and potential impacts from the existing environment on future Project development is not considered under CEQA. Therefore, no determination of significance is provided for General Plan Noise/Land Use Compatibility.

Table 6-1 shows that the majority of the proposed Yorba Linda Housing Element Update multifamily residential land uses are generally considered as normally acceptable with the Criteria for Noise Compatible Land Use. Normally acceptable land use is considered satisfactory, based upon the assumption that any buildings involved are of normal conventional construction without any special noise insulation requirements. However, Table 6-1 indicates that General Plan Noise/Land Use Compatibility for Housing Element Site S5-008 (Location L8) representing the vacant parcel on Fairmont Boulevard is considered conditionally acceptable. For conditionally acceptable land use, new construction or development should be undertaken only after detailed analysis of the noise reduction requirements are made and needed noise insulation features included in the design. Conventional construction, but with closed windows and fresh air supply systems or air conditioning will normally suffice.

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28 TABLE 6-1: GENERAL PLAN NOISE/LAND USE COMPATIBILITY Location1 Description Proposed
Zoning CNEL2
General Plan
Noise/Land Use
Compatibility3
L1 Site S1-021 - Vacant Parcel (W of 16951 Imperial Hwy) Commercial Mixed-Use Overlay 59.5 Normally Acceptable L2 Site S2-008 - Friendship Baptist Church (17151 Bastanchury Rd.) Congregational Land Overlay 63.1 Normally Acceptable L3 Site S3-012 - Richfield Community Church (5320 Richfield Rd.) Congregational Land Overlay 50.7 Normally Acceptable L4 Site S2-013 - Messiah Lutheran Church (4861 Liverpool St.) Congregational Land Overlay 60.1 Normally Acceptable L5 Site S3-210 - Shinno-En USA (18111 Bastanchury Rd.) Congregational Land Overlay 60.6 Normally Acceptable L6 Site S4-075 - 4742 Plumosa Drive RM-20 w/Affordable Overlay 55.4 Normally Acceptable L7 Site S6-015 - 22722 Old Canal Road Affordable Housing Overlay 64.0 Normally Acceptable L8 Site S5-008 - Vacant Parcel on Fairmont Boulevard Residential Medium 68.3 Conditionally Acceptable L9 Site S3-024 - Friend Church Overflow Parking Congregational Land Overlay 56.7 Normally Acceptable L10 Site S4-204B - 19081-19111 Yorba Linda Blvd. Residential Medium 60.1 Normally Acceptable 1 See Exhibit 5-A for the noise level measurement locations. 2 The long-term 24-hour measurement worksheets are included in Appendix 5.2. 3 General Plan compatibility criteria for the proposed multifamily residential use.

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29 7 TRAFFIC NOISE METHODS AND PROCEDURES
The following section outlines the methods and procedures used to estimate and analyze the future traffic noise environment. Consistent with the City of Yorba Linda Land Use Compatibility guidelines, all transportation related noise levels are presented in terms of the 24-hour CNELs.

7.1 FHWA TRAFFIC NOISE PREDICTION MODEL
The expected roadway noise level increases from vehicular traffic were calculated by Urban Crossroads, Inc. using a computer program that replicates the Federal Highway Administration (FHWA) Traffic Noise Prediction Model- FHWA-RD-77-108. (19) The FHWA Model arrives at a predicted noise level through a series of adjustments to the Reference Energy Mean Emission Level (REMEL). In California, the national REMELs are substituted with the California Vehicle Noise (Calveno) Emission Levels. (20) Adjustments are then made to the REMEL to account for:
the roadway classification (e.g., collector, secondary, major or arterial), the roadway active width (i.e., the distance between the center of the outermost travel lanes on each side of the roadway), the total average daily traffic (ADT), the travel speed, the percentages of automobiles, medium trucks, and heavy trucks in the traffic volume, the roadway grade, the angle of view (e.g., whether the roadway view is blocked), the site conditions ("hard" or "soft" relates to the absorption of the ground, pavement, or landscaping), and the percentage of total ADT which flows each hour throughout a 24-hour period. Research conducted by Caltrans has shown that the use of soft site conditions is appropriate for the application of the FHWA traffic noise prediction model used in this analysis. (21)

7.1.1 OFF-SITE TRAFFIC NOISE PREDICTION MODEL INPUTS
Table 7-1 presents the roadway parameters used to assess the Project’s off-site transportation noise impacts. Table 7-1 identifies the 18 off-site study area roadway segments, the distance from the centerline to adjacent receiving land use based on the functional roadway classifications per the City of Yorba Linda General Plan Circulation Element, and the vehicle speeds. The ADT volumes used in this study are presented on Table 7-2 are based on the Yorba Linda Housing Element Update Traffic Analysis prepared by Urban Crossroads, Inc. (22) for the following traffic conditions:
• Existing (2024) Without Project Conditions
• Existing (2024) With Project Conditions
• Horizon Year (2045) Without Project Conditions
• Horizon Year (2045) With Project Conditions

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30 TABLE 7-1: OFF-SITE ROADWAY PARAMETERS
ID Roadway Segment Classification1
Distance from
Centerline to
Receiving Land
Use (Feet)3
Vehicle
Speed
(mph)
1 Rose Dr. s/o Imperial Hwy. Modified Primary 40' 50
2 Imperial Hwy. w/o Prospect Av. Smart Street 50' 55
3 Imperial Hwy. e/o Prospect Av. Smart Street 50' 55
4 Bastanchury Rd. w/o Imperial Hwy. Modified Primary 40' 50 5 Bastanchury Rd. e/o Imperial Hwy. Modified Primary 40' 50 6 Imperial Hwy. n/o Lemon Dr. Smart Street 50' 55
7 Imperial Hwy. s/o Lemon Dr. Smart Street 50' 55
8 Lakeview Av. n/o Buena Vista Av. Primary 50' 45
9 Lakeview Av. s/o Buena Vista Av. Primary 50' 45
10 Buena Vista Av. w/o Lakeview Av. Secondary 40' 45
11 Bastanchury Rd. w/o Plumosa Dr. Modified Primary 40' 50 12 Lakeview Av. s/o Bastanchury Rd. Secondary 40' 45
13 Bastanchury Rd. w/o Lakeview Av. Modified Primary 40' 50 14 Bastanchury Rd. e/o Lakeview Av. Modified Primary 40' 50 15 Lakeview Av. s/o Yorba Linda Bl. Primary 50' 45
16 Yorba Linda Bl. w/o Lakeview Av. Modified Major 50' 50 17 Gypsum Canyon Rd. s/o La Palma Av. Secondary 40' 45
18 La Palma Av. e/o Gypsum Canyon Rd. Modified Primary 40' 50 1 City of Yorba Linda General Plan Circulation Element
2 Distance to receiving land use is based upon the right-of-way distances.

The ADT volumes vary for each roadway segment based on the existing traffic volumes and the combination of project traffic distributions. Table 7-3 provides the time of day (daytime, evening, and nighttime) vehicle splits and Table 7-4 presents the traffic flow distributions (vehicle mix) used for this analysis. The vehicle mix provides the hourly distribution percentages of automobile, medium trucks, and heavy trucks for input into the FHWA noise prediction model.

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31 TABLE 7-2: AVERAGE DAILY TRAFFIC VOLUMES
ID Roadway Segment
Average Daily Traffic Volumes1
Existing HY (2045)
Without
Project
With
Project
Without
Project
With
Project
1 Rose Dr. s/o Imperial Hwy. 14,417 15,183 17,381 18,147 2 Imperial Hwy. w/o Prospect Av. 42,046 42,679 47,022 47,655 3 Imperial Hwy. e/o Prospect Av. 39,992 40,595 44,725 45,328 4 Bastanchury Rd. w/o Imperial Hwy. 15,308 15,780 17,120 17,592 5 Bastanchury Rd. e/o Imperial Hwy. 18,846 19,231 22,406 22,791 6 Imperial Hwy. n/o Lemon Dr. 35,798 36,338 40,035 40,574 7 Imperial Hwy. s/o Lemon Dr. 33,408 33,912 37,362 37,865 8 Lakeview Av. n/o Buena Vista Av. 14,406 14,926 17,586 18,106 9 Lakeview Av. s/o Buena Vista Av. 12,516 13,058 14,418 14,960 10 Buena Vista Av. w/o Lakeview Av. 7,627 8,317 8,390 9,080 11 Bastanchury Rd. w/o Plumosa Dr. 15,449 15,682 17,278 17,510 12 Lakeview Av. s/o Bastanchury Rd. 8,941 9,713 9,836 10,607 13 Bastanchury Rd. w/o Lakeview Av. 15,504 16,867 18,510 19,873 14 Bastanchury Rd. e/o Lakeview Av. 18,676 18,698 21,229 21,251 15 Lakeview Av. s/o Yorba Linda Bl. 13,287 13,766 16,137 16,616 16 Yorba Linda Bl. w/o Lakeview Av. 28,182 28,536 24,502 24,856 17 Gypsum Canyon Rd. s/o La Palma Av. 12,309 13,238 13,540 13,717 18 La Palma Av. e/o Gypsum Canyon Rd. 8,746 9,563 9,621 9,751 1 Yorba Linda Housing Element Update Traffic Analysis, Urban Crossroads, Inc.

TABLE 7-3: TIME OF DAY VEHICLE SPLITS
Vehicle Type
Time of Day Splits1
Total of Time of
Daytime Evening Nighttime Day Splits
Autos 77.50% 12.90% 9.60% 100.00%
Medium Trucks 84.80% 4.90% 10.30% 100.00%
Heavy Trucks 86.50% 2.70% 10.80% 100.00%
1 Typical Southern California vehicle mix.
"Daytime" = 7:00 a.m. to 7:00 p.m.; "Evening" = 7:00 p.m. to 10:00 p.m.; "Nighttime" = 10:00 p.m. to 7:00 a.m.

TABLE 7-4: TRAFFIC FLOW BY VEHICLE TYPE (VEHICLE MIX)
Classification
Total % Traffic Flow
Total
Autos Medium Trucks Heavy Trucks
All Roadways1 97.42% 1.84% 0.74% 100.00%
1 Typical Southern California vehicle mix.

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33 8 OFF-SITE TRAFFIC NOISE ANALYSIS
To assess the off-site transportation CNEL noise level impacts associated with development of the proposed Project, noise contours were developed based on the on the Yorba Linda Housing Element Update Traffic Analysis prepared by Urban Crossroads, Inc. (22). Noise contour boundaries represent the equal levels of noise exposure and are measured in CNEL from the center of the roadway.

8.1 NOISE CONTOURS
Noise contours were used to assess the Project's incremental 24-hour dBA CNEL traffic-related noise impacts at receiving land uses adjacent to roadways conveying Project traffic. The noise contours represent the distance to noise levels of a constant value and are measured from the center of the roadway for the 70, 65, and 60 dBA CNEL noise levels. To be conservative, the noise contours do not consider the effect of any existing noise barriers or topography that may attenuate ambient noise levels. In addition, because the noise contours reflect modeling of vehicular noise on area roadways, they appropriately do not reflect noise contributions from the surrounding stationary noise sources within the Project study area. Tables 8-1 through 8-4 present a summary of the exterior dBA CNEL traffic noise levels without barrier attenuation.

Appendix 8.1 includes a summary of the dBA CNEL traffic noise level contours for each of the traffic scenarios.

TABLE 8-1: EXISTING WITHOUT PROJECT CONTOURS
ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Rose Dr. s/o Imperial Hwy. 72.2 57 122 262
2 Imperial Hwy. w/o Prospect Av. 77.5 157 339 730
3 Imperial Hwy. e/o Prospect Av. 77.3 152 328 706
4 Bastanchury Rd. w/o Imperial Hwy. 72.5 59 127 273
5 Bastanchury Rd. e/o Imperial Hwy. 73.4 68 146 314
6 Imperial Hwy. n/o Lemon Dr. 76.8 141 305 656
7 Imperial Hwy. s/o Lemon Dr. 76.5 135 291 627
8 Lakeview Av. n/o Buena Vista Av. 69.1 43 93 201
9 Lakeview Av. s/o Buena Vista Av. 68.5 39 85 183
10 Buena Vista Av. w/o Lakeview Av. 67.5 27 58 126
11 Bastanchury Rd. w/o Plumosa Dr. 72.6 59 127 275
12 Lakeview Av. s/o Bastanchury Rd. 68.2 30 65 140
13 Bastanchury Rd. w/o Lakeview Av. 72.6 59 128 275
14 Bastanchury Rd. e/o Lakeview Av. 73.4 67 145 312
15 Lakeview Av. s/o Yorba Linda Bl. 68.7 41 88 191

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
34 ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
16 Yorba Linda Bl. w/o Lakeview Av. 74.7 103 221 476
17 Gypsum Canyon Rd. s/o La Palma Av. 69.5 37 80 173
18 La Palma Av. e/o Gypsum Canyon Rd. 70.1 40 87 188
1 The CNEL is calculated at the boundary of the right-of-way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right-of-way of the road.

TABLE 8-2: EXISTING WITH PROJECT CONTOURS
ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Rose Dr. s/o Imperial Hwy. 72.5 58 126 271
2 Imperial Hwy. w/o Prospect Av. 77.5 159 342 738
3 Imperial Hwy. e/o Prospect Av. 77.3 154 331 714
4 Bastanchury Rd. w/o Imperial Hwy. 72.6 60 129 279
5 Bastanchury Rd. e/o Imperial Hwy. 73.5 68 148 318
6 Imperial Hwy. n/o Lemon Dr. 76.8 143 308 663
7 Imperial Hwy. s/o Lemon Dr. 76.5 136 294 633
8 Lakeview Av. n/o Buena Vista Av. 69.2 44 96 206
9 Lakeview Av. s/o Buena Vista Av. 68.6 41 87 188
10 Buena Vista Av. w/o Lakeview Av. 67.8 29 62 133
11 Bastanchury Rd. w/o Plumosa Dr. 72.6 60 129 277
12 Lakeview Av. s/o Bastanchury Rd. 68.5 32 69 148
13 Bastanchury Rd. w/o Lakeview Av. 72.9 63 135 291
14 Bastanchury Rd. e/o Lakeview Av. 73.4 67 145 312
15 Lakeview Av. s/o Yorba Linda Bl. 68.9 42 91 195
16 Yorba Linda Bl. w/o Lakeview Av. 74.7 103 223 480
17 Gypsum Canyon Rd. s/o La Palma Av. 69.9 39 84 182
18 La Palma Av. e/o Gypsum Canyon Rd. 70.5 43 93 199
1 The CNEL is calculated at the boundary of the right-of-way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right-of-way of the road.

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35 TABLE 8-3: HORIZON YEAR (2045) WITHOUT PROJECT CONTOURS ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Rose Dr. s/o Imperial Hwy. 73.1 64 138 297
2 Imperial Hwy. w/o Prospect Av. 78.0 170 365 787
3 Imperial Hwy. e/o Prospect Av. 77.7 164 353 761
4 Bastanchury Rd. w/o Imperial Hwy. 73.0 63 137 294
5 Bastanchury Rd. e/o Imperial Hwy. 74.2 76 163 352
6 Imperial Hwy. n/o Lemon Dr. 77.3 152 328 707
7 Imperial Hwy. s/o Lemon Dr. 77.0 145 313 675
8 Lakeview Av. n/o Buena Vista Av. 69.9 49 107 230
9 Lakeview Av. s/o Buena Vista Av. 69.1 43 93 201
10 Buena Vista Av. w/o Lakeview Av. 67.9 29 62 134
11 Bastanchury Rd. w/o Plumosa Dr. 73.0 64 137 296
12 Lakeview Av. s/o Bastanchury Rd. 68.6 32 69 149
13 Bastanchury Rd. w/o Lakeview Av. 73.3 67 144 310
14 Bastanchury Rd. e/o Lakeview Av. 73.9 73 158 339
15 Lakeview Av. s/o Yorba Linda Bl. 69.6 47 101 217
16 Yorba Linda Bl. w/o Lakeview Av. 74.1 93 201 434
17 Gypsum Canyon Rd. s/o La Palma Av. 70.0 40 86 184
18 La Palma Av. e/o Gypsum Canyon Rd. 70.5 43 93 200
1 The CNEL is calculated at the boundary of the right-of-way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right-of-way of the road.

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36 TABLE 8-4: HORIZON YEAR (2045) WITH PROJECT CONTOURS ID Road Segment
CNEL at
Receiving
Land Use
(dBA)1
Distance to Contour from
Centerline (Feet)
70 dBA
CNEL
65 dBA
CNEL
60 dBA
CNEL
1 Rose Dr. s/o Imperial Hwy. 73.2 66 142 306
2 Imperial Hwy. w/o Prospect Av. 78.0 171 369 794
3 Imperial Hwy. e/o Prospect Av. 77.8 165 356 768
4 Bastanchury Rd. w/o Imperial Hwy. 73.1 65 139 299
5 Bastanchury Rd. e/o Imperial Hwy. 74.2 77 165 356
6 Imperial Hwy. n/o Lemon Dr. 77.3 154 331 713
7 Imperial Hwy. s/o Lemon Dr. 77.0 147 316 681
8 Lakeview Av. n/o Buena Vista Av. 70.1 50 109 234
9 Lakeview Av. s/o Buena Vista Av. 69.2 44 96 206
10 Buena Vista Av. w/o Lakeview Av. 68.2 30 66 141
11 Bastanchury Rd. w/o Plumosa Dr. 73.1 64 139 299
12 Lakeview Av. s/o Bastanchury Rd. 68.9 34 73 157
13 Bastanchury Rd. w/o Lakeview Av. 73.6 70 151 325
14 Bastanchury Rd. e/o Lakeview Av. 73.9 73 158 340
15 Lakeview Av. s/o Yorba Linda Bl. 69.7 48 103 221
16 Yorba Linda Bl. w/o Lakeview Av. 74.1 94 203 438
17 Gypsum Canyon Rd. s/o La Palma Av. 70.0 40 86 186
18 La Palma Av. e/o Gypsum Canyon Rd. 70.6 44 94 202
1 The CNEL is calculated at the boundary of the right-of-way of the receiving adjacent land use. "RW" = Location of the respective noise contour falls within the right-of-way of the road.

8.2 EXISTING WITH PROJECT TRAFFIC NOISE LEVEL INCREASES An analysis of existing traffic noise levels plus traffic noise generated by the proposed Project has been included in this report to fully analyze all the existing traffic scenarios identified in the Yorba Linda Housing Element Update Traffic Analysis. This condition realistically would not occur since the Project will not be fully developed and occupied under Existing conditions. Table 8-1 shows the Existing without Project conditions CNEL noise levels. The Existing without Project exterior noise levels are expected to range from 67.5 to 77.5 dBA CNEL, without accounting for any noise attenuation features such as noise barriers or topography. Table 8-2 shows the Existing with Project conditions will range from 67.8 to 77.5 dBA CNEL. Table 8-5 shows that the Project offsite traffic noise level impacts will range from 0.1 to 0.4 dBA CNEL. Based on the significance criteria for off-site traffic noise presented in Table 4-1, land uses adjacent to the study area roadway segments would experience less than significant noise level impacts due to unmitigated Project-related traffic noise levels.

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37 TABLE 8-5: EXISTING WITH PROJECT TRAFFIC NOISE LEVEL INCREASES ID Road Segment
CNEL at Receiving
Land Use (dBA)1
Incremental Noise
Level Increase
Threshold2
No
Project
With
Project
Project
Addition Limit Exceeded?
1 Rose Dr. s/o Imperial Hwy. 72.2 72.5 0.3 1.5 No
2 Imperial Hwy. w/o Prospect Av. 77.5 77.5 0.0 1.5 No
3 Imperial Hwy. e/o Prospect Av. 77.3 77.3 0.0 1.5 No
4 Bastanchury Rd. w/o Imperial Hwy. 72.5 72.6 0.1 1.5 No 5 Bastanchury Rd. e/o Imperial Hwy. 73.4 73.5 0.1 1.5 No 6 Imperial Hwy. n/o Lemon Dr. 76.8 76.8 0.0 1.5 No
7 Imperial Hwy. s/o Lemon Dr. 76.5 76.5 0.0 1.5 No
8 Lakeview Av. n/o Buena Vista Av. 69.1 69.2 0.1 1.5 No 9 Lakeview Av. s/o Buena Vista Av. 68.5 68.6 0.1 1.5 No 10 Buena Vista Av. w/o Lakeview Av. 67.5 67.8 0.3 1.5 No 11 Bastanchury Rd. w/o Plumosa Dr. 72.6 72.6 0.0 1.5 No 12 Lakeview Av. s/o Bastanchury Rd. 68.2 68.5 0.3 1.5 No 13 Bastanchury Rd. w/o Lakeview Av. 72.6 72.9 0.3 1.5 No 14 Bastanchury Rd. e/o Lakeview Av. 73.4 73.4 0.0 1.5 No 15 Lakeview Av. s/o Yorba Linda Bl. 68.7 68.9 0.2 1.5 No 16 Yorba Linda Bl. w/o Lakeview Av. 74.7 74.7 0.0 1.5 No 17 Gypsum Canyon Rd. s/o La Palma Av. 69.5 69.9 0.4 1.5 No 18 La Palma Av. e/o Gypsum Canyon Rd. 70.1 70.5 0.4 1.5 No 1 The CNEL is calculated at the boundary of the right-of-way of each roadway and the property line of the receiving land use. 2 Does the Project create an incremental noise level increase exceeding the significance criteria (Table 4-1)?

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
38 8.3 HORIZON YEAR (2045) PROJECT TRAFFIC NOISE LEVEL INCREASES Table 8-3 presents the Horizon Year (2045) without Project conditions CNEL noise levels. The Horizon Year (2045) without Project exterior noise levels are expected to range from 67.9 to 78.0 dBA CNEL, without accounting for any noise attenuation features such as noise barriers or topography. Table 8-4 shows the Horizon Year (2045) with Project conditions will range from

68.2 to 78.0 dBA CNEL. Table 8-6 shows that the Project off-site traffic noise level increases will range from 0.0 to 0.3 dBA CNEL. Based on the significance criteria for off-site traffic noise presented in Table 4-1, land uses adjacent to the study area roadway segments would experience less than significant noise level impacts due to unmitigated Project-related traffic noise levels.

TABLE 8-6: HORIZON YEAR (2045) WITH PROJECT TRAFFIC NOISE LEVEL INCREASES ID Road Segment
CNEL at Receiving
Land Use (dBA)1
Incremental Noise
Level Increase
Threshold2
No
Project
With
Project
Project
Addition Limit Exceeded?
1 Rose Dr. s/o Imperial Hwy. 73.1 73.2 0.1 1.5 No
2 Imperial Hwy. w/o Prospect Av. 78.0 78.0 0.0 1.5 No
3 Imperial Hwy. e/o Prospect Av. 77.7 77.8 0.1 1.5 No
4 Bastanchury Rd. w/o Imperial Hwy. 73.0 73.1 0.1 1.5 No 5 Bastanchury Rd. e/o Imperial Hwy. 74.2 74.2 0.0 1.5 No 6 Imperial Hwy. n/o Lemon Dr. 77.3 77.3 0.0 1.5 No
7 Imperial Hwy. s/o Lemon Dr. 77.0 77.0 0.0 1.5 No
8 Lakeview Av. n/o Buena Vista Av. 69.9 70.1 0.2 1.5 No 9 Lakeview Av. s/o Buena Vista Av. 69.1 69.2 0.1 1.5 No 10 Buena Vista Av. w/o Lakeview Av. 67.9 68.2 0.3 1.5 No 11 Bastanchury Rd. w/o Plumosa Dr. 73.0 73.1 0.1 1.5 No 12 Lakeview Av. s/o Bastanchury Rd. 68.6 68.9 0.3 1.5 No 13 Bastanchury Rd. w/o Lakeview Av. 73.3 73.6 0.3 1.5 No 14 Bastanchury Rd. e/o Lakeview Av. 73.9 73.9 0.0 1.5 No 15 Lakeview Av. s/o Yorba Linda Bl. 69.6 69.7 0.1 1.5 No 16 Yorba Linda Bl. w/o Lakeview Av. 74.1 74.1 0.0 1.5 No 17 Gypsum Canyon Rd. s/o La Palma Av. 70.0 70.0 0.0 1.5 No 18 La Palma Av. e/o Gypsum Canyon Rd. 70.5 70.6 0.1 1.5 No 1 The CNEL is calculated at the boundary of the right-of-way of each roadway and the property line of the receiving land use. 2 Does the Project create an incremental noise level increase exceeding the significance criteria (Table 4-1)?

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
39 9 STATIONARY SOURCE NOISE ANALYSIS
The proposed residential development is considered a noise-sensitive receiving land use and is not expected to include any specific type of stationary noise levels beyond those typically associated with residential land use in the Project study area. However, since the individual locations of potential stationary source noise activities for the 18 vacant or underutilized sites are not known currently, this section considers several potential stationary source noise activities. In addition, Section 21085 of the recently adopted 2023 California Public Resources Code (PRC), established that “noise effects” on humans that are associated with “project occupants and guests” within residential Projects are not considered an impact on the environment

9.1 POTENTIAL STATIONARY SOURCENOISE ACTIVITIES
The stationary source noise activities are expected to include residents moving around each of the sites, residential air conditioning units, and parking lot activities. Since the actual plans for the 18 vacant or underutilized sites are not known at this time, the potential stationary source noise activities may also include trash enclosures, dog parks, pool/spas, or other similar source of outdoor activity. To ensure that stationary source noise activity does not represent a nuisance, the Project shall satisfy the exterior noise level limits outlined in the City of Yorba Linda Municipal Code Section 8.32.060 and satisfy any conditions of approval.

9.2 REFERENCE NOISE LEVELS
To estimate the Project stationary source noise level impact to existing nearby noise sensitive receivers, reference sound power levels (Lw) were collected from similar types of activities to represent the noise levels expected with the development of the 18 vacant or underutilized sites.

While sound pressure levels (e.g. Leq) quantify in decibels the intensity of given sound sources at a reference distance, sound power levels (Lw) are connected to the sound source and are independent of distance. Sound pressure levels vary substantially with distance from the source and diminish because of intervening obstacles and barriers, air absorption, wind, and other factors. Sound power is the acoustical energy emitted by the sound source and is an absolute value that is not affected by the environment. The reference stationary source sound power noise levels used to estimate the potential stationary source noise activities are summarized below:
• Residential Air Conditioning Units: 75 dBA Lw according to the reference product data sheet for the Carrier model 24ACC4 Air Conditioner Unit.
• Parking Lot Activities: 88 dBA Lw based on reference noise level measurements collected by Urban Crossroads, Inc. The residential parking lot noise levels are mainly due to cars pulling in and out of spaces and residents going to and from their homes. Additional noise sources include key fob horn activities as well as vehicle loading and unloading activities. • Trash Enclosure Activities: 89 dBA Lw based on reference noise level measurements collected by Urban Crossroads, Inc. at an existing trash enclosure containing two dumpster bins.

Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
40 • Dog Park Activities: 79 dBA Lw based on reference noise level measurements collected by Urban Crossroads, Inc. at the La Paws Dog Park in the City of Mission Viejo. The reference noise level measurement describes large and small dogs with people talking, dogs running, playing fetch, chasing each other, growling, barking, and owners talking on cell phones. • Pool/Spa Activities: 86 dBA Lw based on reference noise level measurements collected by Urban Crossroads, Inc. The pool activity noise levels include kids playing, running, screaming, splashing, playing with a ball, and parents talking.
• Outdoor Activity: 75 dBA Lw based on reference outdoor noise level measurements collected by Urban Crossroads, Inc. describing picnic tables, tot lots and areas of outdoor use.

9.3 NOISE PREDICTION CALCULATIONS
To describe the exterior stationary source noise levels from the Project, Urban Crossroads, Inc. calculated the potential Project stationary source noise levels at distances ranging from 25 to 200 feet. The stationary source noise levels were estimated using the ISO 9613-2 protocol in the CadnaA (Computer Aided Noise Abatement) computer program. Consistent with the ISO 9613-2 protocol, the CadnaA noise prediction model relies on a reference sound power level (Lw) to describe individual noise sources. The stationary source noise level calculations provided in this noise study account for the distance attenuation provided due to geometric spreading, when sound from a localized stationary source (i.e., a point source) propagates uniformly outward in a spherical pattern. A default ground attenuation factor of 0.5 was used in the noise analysis to account for mixed ground representing a combination of hard and soft surfaces. Appendix 9.1 includes the detailed stationary source noise model calculations.

9.4 PROJECT STATIONARY SOURCE NOISE LEVELS
Using the reference noise levels to represent the proposed Project operations that include residents moving around each of the sites, residential air conditioning units, and parking lot activities as well as trash enclosures, dog parks, pool/spas, or other similar source of outdoor activity, Urban Crossroads, Inc. calculated the stationary source noise levels. Table 9-1 shows that the Project operational noise levels at the off-site receiver locations are expected to range from 47.2 to 61.2 dBA Leq at 25 feet.

TABLE 9-1: PROJECT STATIONARY SOURCE NOISE LEVELS
Distance
to
Const.

Activity
(Feet)
Potential Stationary Source Noise Activity dBA (Leq)1
AirConditioning
Units
Parking Trash
Enclosure Dog Park Pool/Spa Outdoor
Highest
Noise
Level
25' 47.2 60.2 61.2 51.2 58.2 61.2 61.2
50' 39.6 52.6 53.6 43.6 50.6 53.6 53.6
100' 30.8 43.8 44.8 34.8 41.8 44.8 44.8
150' 20.5 33.5 34.5 24.5 31.5 34.5 34.5
200' 16.5 29.5 30.5 20.5 27.5 30.5 30.5
1 Stationary source noise calculations are provided in Appendix 9.1.

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41 9.5 PROJECT STATIONARY SOURCENOISE LEVEL COMPLIANCE
To demonstrate compliance with local noise regulations, the unmitigated Project stationary source noise levels are evaluated against the exterior noise level limits outlined in City of Yorba Linda Municipal Code Section 8.32.060. Table 9-2 shows the operational noise levels associated with the Yorba Linda Housing Element Update will satisfy the City of Yorba Linda daytime and nighttime exterior noise level limits at distances of greater than 50 feet from the stationary noise source activity. However, the existing noise sensitive receivers located within 50 feet of parking lot activities, trash enclosures, dog parks, pool/spas, or other similar source of outdoor activity may experience unmitigated exterior noise levels exceeding the exterior noise level limits.

Therefore, the unmitigated stationary source noise impacts due to Project-related stationary source activities are considered less than potentially significant.

TABLE 9-2: PROJECT STATIONARY SOURCE NOISE LEVEL COMPLIANCE Distance
to Const.

Activity
(Feet)
Project
Operational
Noise Levels
(dBA Leq)1
Noise Level Limits
(dBA Leq)2 Noise Level Limits Exceeded?3
Daytime Nighttime Daytime Nighttime
25' 61.2 55 50 Yes Yes
50' 53.6 55 50 No Yes
100' 44.8 55 50 No No
150' 34.5 55 50 No No
200' 30.5 55 50 No No
1 Highest potential stationary source noise activity (Table 9-1). 2 Exterior noise standards (Municipal Code, Section 8.32.060). 6 Do the estimated Project stationary source noise activities exceed the noise level limits? "Daytime" = 7:00 a.m. - 10:00 p.m.; "Nighttime" = 10:00 p.m. - 7:00 a.m.

9.6 PROJECT STATIONARY SOURCE NOISE REGULATIONS
To minimize the noise exposure to the existing noise sensitive residential areas, potential stationary source noise activities should be considered as part of the site planning process. This is consistent with Goal N-4 of the City of Yorba Linda General Plan Noise Element to mitigate noise impacts from non-transportation sources. Goal N-4 includes the following policies that are designed to minimize the potentially significant stationary source noise activities.

N-4.1 Consider noise impacts in the siting, design, and construction of new development to minimize noise impacts.

N-4.2 Consider alternative architectural layouts as a means of meeting noise requirements.

N-4.3 Consider a combination of noise barriers, landscape berms, and architectural design treatments when needed to mitigate noise impacts.

N-4.4 Consider measures which alter, prohibit or mitigate noise generating uses through site design.

With the implementation of Goal N-4 of the City of Yorba Linda General Plan Noise Element and compliance with the exterior noise level limits outlined in the City of Yorba Linda Municipal Code Section 8.32.060, the Project stationary source impacts are considered less than significant.

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42 9.7 PROJECT STATIONARY SOURCE NOISE MITIGATION
Prior to issuance of any construction permits, applicants for individual projects that are within 50 feet of a sensitive receptor, shall prepare and submit to the City of Yorba Linda Planning Department a study to evaluate potential operational-related stationary source noise impacts.

The noise report shall be prepared by an acoustical engineer using the ISO 9613-2 protocol in the CadnaA (Computer Aided Noise Abatement) computer program. If the study determines a potential exceedance of the City’s thresholds (55 dBA Leq daytime, or 50 dBA Leq nighttime), measures shall be identified that ensure noise levels are reduced to below the thresholds.

Identified measures shall be included on all construction and building documents and submitted for verification to the City of Yorba Linda Planning Department.

9.8 STATIONARY SOURCE VIBRATION LEVELS
The Project’s residential development is not expected to include any specific type of stationary vibration sources, and therefore, the potential stationary source vibration impacts for the Yorba Linda Housing Element Update residential land use is considered less than significant.

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43 10 CONSTRUCTION IMPACTS
This section analyzes potential impacts resulting from the construction activities associated with the development of the Project. To prevent high levels of construction noise from impacting noise-sensitive land uses, Section 8.32.090[D] the City of Yorba Linda Municipal Code, indicates that construction activity is considered exempt provided the activities do not take place between the hours of 7:00 a.m. to 8:00 p.m. on weekdays, including Saturday, or at any time on Sunday or federal holidays.

10.1 CONSTRUCTION NOISE LEVELS
Noise generated by the Project construction equipment will include a combination of trucks, power tools, concrete mixers, and portable generators that when combined can reach high levels. Noise levels generated by heavy construction equipment can range from approximately 68 dBA to more than 80 dBA when measured at 50 feet. Hard site conditions are commonly used in the construction noise analysis which result in noise levels that attenuate (or decrease) at a rate of 6 dBA for each doubling of distance from a point source (i.e. construction equipment).

For example, a noise level of 80 dBA measured at 50 feet from the noise source to the receiver would be reduced to 74 dBA at 100 feet from the source to the receiver and would be further reduced to 68 dBA at 200 feet from the source to the receiver.

10.2 CONSTRUCTION NOISE LEVEL COMPLIANCE
The highest construction noise levels will occur when construction activities take place at the closest point from the edge of primary construction activity to each of the nearby receiver locations. The development of the 18 vacant or underutilized sites would likely occur in close proximity to existing noise sensitive receivers and elevate the ambient noise environment.

Furthermore, the construction of future development projects could last for prolonged periods and result in a substantial or periodic increase in the ambient noise levels. Therefore, construction noise impacts from the Project are considered potentially significant.

10.3 CONSTRUCTION NOISE REGULATIONS
The City of Yorba Linda General Plan Noise Element includes the following policies that are designed to minimize the potentially significant construction related noise activities.

N-3.1 Ensure compliance with standards and procedures for mitigating construction related activities that introduce excessive noise levels.

N-4.1 Consider noise impacts in the siting, design, and construction of new development to minimize noise impacts.

These measures would contribute to minimizing construction-related noise. However, due to the unknown number of construction activities that could occur at one time, proximity of construction activities to sensitive receivers, and other factors that cannot be quantified at this time, such as the longevity of activities, construction-related noise impacts may not be reduced

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44 to less than significant levels for some projects. Therefore, construction noise impacts would remain significant and unavoidable.

10.4 CONSTRUCTION VIBRATION IMPACTS
Construction activity can result in varying degrees of ground vibration, depending on the equipment and methods used, distance to the affected structures and soil type. It is expected that ground-borne vibration from Project construction activities would cause only intermittent, localized intrusion. Ground-borne vibration levels resulting from typical construction activities occurring within the Project area were estimated by data published by the Federal Transit Administration (FTA). (8) While vehicular traffic is rarely perceptible, construction has the potential to result in varying degrees of temporary ground vibration, depending on the specific construction activities and equipment used.

Ground vibration levels associated with various types of construction equipment are summarized on Table 10-1. Based on the representative vibration levels presented for various construction equipment types, it is possible to estimate the potential Project construction vibration levels using the following vibration assessment methods defined by the FTA. To describe the human response (annoyance) associated with vibration impacts the FTA provides the following equation:

PPVequip = PPVref x (25/D)1.5
TABLE 10-1: VIBRATION SOURCE LEVELS FOR CONSTRUCTION EQUIPMENT Equipment PPV (in/sec)
at 25 feet
Vibratory Roller 0.210
Small bulldozer 0.003
Jackhammer 0.035
Loaded Trucks 0.076
Large bulldozer 0.089
Federal Transit Administration, Transit Noise and Vibration Impact Assessment Manual Using the vibration source levels of construction equipment provided on Table 10-1 and the construction vibration assessment methodology published by the FTA, it is possible to estimate the Project vibration impacts. Based on the reference vibration levels provided by the FTA, a vibratory roller represents the peak source of vibration with a reference velocity of 0.21 in/sec PPV at 25 feet. Table 10-2 presents the expected Project related vibration levels at distances ranging from 25 to 200 feet from construction activity. Table 10-2 shows that construction vibration levels are expected to range from 0.009 to 0.210 in/sec PPV.

Based on maximum acceptable continuous vibration threshold of 0.3 PPV (in/sec), the typical Project construction vibration levels for nearby “older residential structures” will fall below the building damage thresholds at 25 feet. Therefore, the Project-related vibration impacts are considered less than significant during typical construction activities.

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45 TABLE 10-2: CONSTRUCTION EQUIPMENT VIBRATION LEVELS
Distance
to Const.

Activity
(Feet)
Typical Construction Vibration Levels
PPV (in/sec)1
Vibratory
Roller
Small
bulldozer Jackhammer Loaded Trucks
Large
bulldozer
Highest
Vibration
Level
25' 0.210 0.210 0.035 0.076 0.089 0.210
50' 0.074 0.074 0.012 0.027 0.031 0.074
100' 0.026 0.026 0.004 0.010 0.011 0.026
150' 0.014 0.014 0.002 0.005 0.006 0.014
200' 0.009 0.009 0.002 0.003 0.004 0.009
1 Based on the Vibration Source Levels of Construction Equipment included on Table 10-1. "PPV" = Peak Particle Velocity

10.5 CONSTRUCTION NOISE AND VIBRATION MITIGATION MEASURES The following construction noise mitigation measures would reduce noise and vibration levels produced by construction equipment to nearby noise-sensitive uses.

NOI-1 Construction contractors shall equip all construction equipment, fixed or mobile, with properly operating and maintained mufflers, consistent with manufacturers’ standards, and all stationary construction equipment shall be placed so that emitted noise is directed away from the noisesensitive use nearest the construction activity.

NOI-2 The construction contractor shall locate equipment staging in areas that will create the greatest distance between construction-related noise sources and noise-sensitive receiver nearest to the construction activity.

NOI-3 The construction contractor shall limit haul truck deliveries to the same hours specified for construction equipment by Section 8.32.090[D] of the City of Yorba Linda Municipal Code. The contractor shall design delivery routes to minimize the exposure of sensitive land uses to delivery truck noise.

NOI-4 Prior to issuance of any construction permits, applicants for individual projects that involve vibration-intensive construction activities, such as pile drivers, jack hammers, and vibratory rollers, within 25 feet of sensitive receptors (e.g., residences and fragile structures), shall prepare and submit to the City of Yorba Linda Planning Department a study to evaluate potential construction-related vibration impacts. The vibration assessment shall be prepared by an acoustical engineer and be based on recognized vibration-induced architectural damage criterion.

If the study determines a potential exceedance of the thresholds, measures shall be identified that ensure vibration levels are reduced to below the thresholds. Identified measures shall be included on all construction and building documents and submitted for verification to the City of Yorba Linda Planning Department.

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47 11 REFERENCES

1. State of California. California Environmental Quality Act, Appendix G. 2024.

2. California Department of Transportation Environmental Program. Technical Noise Supplement - A Technical Supplement to the Traffic Noise Analysis Protocol. Sacramento, CA : s.n., September 2013.

3. Environmental Protection Agency Office of Noise Abatement and Control. Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety. March 1974. EPA/ONAC 550/9/74-004.

4. U.S. Department of Transportation, Federal Highway Administration, Office of Environment and Planning, Noise and Air Quality Branch. Highway Traffic Noise Analysis and Abatement Policy and Guidance. December 2011.

5. U.S. Department of Transportation Federal Highway Administration. Highway Noise Barrier Design Handbook. 2001.

6. U.S. Department of Transportation, Federal Highway Administration. Highway Traffic Noise in the United States, Problem and Response. April 2000. p. 3.

7. U.S. Environmental Protection Agency Office of Noise Abatement and Control. Noise Effects Handbook-A Desk Reference to Health and Welfare Effects of Noise. October 1979 (revised July 1981).

EPA 550/9/82/106.

8. U.S. Department of Transportation, Federal Transit Administration. Transit Noise and Vibration Impact Assessment Manual, FTA Report No. 0123. September 2018.

9. California Department of Transportation. Transportation and Construction Vibration Guidance Manual. April 2020.

10. Office of Planning and Research. State of California General Plan Guidlines. 2017.

11. City of Yorba Linda. General Plan Noise Element. 2016.

12. —. Municipal Code, Chapter 8.32 Noise Control.

13. California Court of Appeal. Gray v. County of Madera, F053661. 167 Cal.App.4th 1099; - Cal.Rptr.3d, October 2008.

14. Federal Interagency Committee on Noise. Federal Agency Review of Selected Airport Noise Analysis Issues. August 1992.

15. California Department of Transportation. Technical Noise Supplement. November 2009.

16. American National Standards Institute (ANSI). Specification for Sound Level Meters ANSI S1.4- 2014/IEC 61672-1:2013.

17. U.S. Department of Transportation, Federal Highway Administration. FHWA Highway Traffic Noise Prediction Model. December 1978. FHWA-RD-77-108.

18. California Department of Transportation Environmental Program, Office of Environmental Engineering. Use of California Vehicle Noise Reference Energy Mean Emission Levels (Calveno REMELs) in FHWA Highway Traffic Noise Prediction. September 1995. TAN 95-03.

19. California Department of Transportation. Traffic Noise Attenuation as a Function of Ground and Vegetation Final Report. June 1995. FHWA/CA/TL-95/23.

20. Urban Crossroads, Inc. Yorba Linda Housing Element Update Traffic Analysis. April 2024.

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49 12 CERTIFICATION
The contents of this noise study report represent an accurate depiction of the noise environment and impacts associated with the proposed Yorba Linda Housing Element Update Project. The information contained in this noise study report is based on the best available data at the time of preparation. If you have any questions, please contact me directly at (949) 584-3148.

Bill Lawson, P.E., INCE
Principal
URBAN CROSSROADS, INC.
1133 Camelback #8329
Newport Beach, CA 92658
(949) 581-3148
[email protected]

EDUCATION
Master of Science in Civil and Environmental Engineering California Polytechnic State University, San Luis Obispo • December, 1993 Bachelor of Science in City and Regional Planning
California Polytechnic State University, San Luis Obispo • June, 1992

PROFESSIONAL REGISTRATIONS
PE – Registered Professional Traffic Engineer – TR 2537 • January, 2009 AICP – American Institute of Certified Planners – 013011 • June, 1997–January 1, 2012 PTP – Professional Transportation Planner • May, 2007 – May, 2013 INCE – Institute of Noise Control Engineering • March, 2004

PROFESSIONAL AFFILIATIONS
ASA – Acoustical Society of America
ITE – Institute of Transportation Engineers

PROFESSIONAL CERTIFICATIONS
Certified Acoustical Consultant – County of San Diego • March, 2018 Certified Acoustical Consultant – County of Orange • February, 2011 FHWA-NHI-142051 Highway Traffic Noise Certificate of Training • February, 2013

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APPENDIX 3.1:

CITY OF YORBA LINDA MUNICIPAL CODE

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52 CHAPTER 8.32

NOISE CONTROL
Article I
Noise Standards
§ 8.32.010. Purpose and intent of provisions.
(Prior code § 19A-1)
§ 8.32.020. Definitions.

The following words, phrases and terms, as used in this chapter, shall have the meaning indicated below:
"Ambient noise level" means the all-encompassing noise level associated with a given environment, being a composite of sounds from all sources, excluding the alleged offensive noise, at the location and approximate time at which a comparison with the alleged offensive noise is to be made.
"Cumulative period" means an additive period of time composed of individual time segments which may be continuous or interrupted.
"Decibel (dB)" means a unit which denotes the ratio between two quantities which are proportional to power; the number of decibels corresponding to the ratio of two amounts of power is ten times the logarithm to the base ten of this ratio. "Emergency machinery, vehicle or work" means any machinery, vehicle or work used, employed or performed in an effort to protect, provide or restore safe conditions in the community or for the citizenry, or work by private or public utilities when restoring utility service.
"Fixed noise source" means a stationary device which creates sounds while fixed or motionless, including but not limited to industrial and commercial machinery and equipment, pumps, fans, compressors, generators, air conditioners and refrigeration equipment.
"Impact noise" means and includes the noise produced by the collision of one mass in motion with a second mass which may be either in motion or at rest. "Mobile noise source" any noise source other than a fixed noise source. "Noise level" means the A-weighted sound pressure level in decibels obtained by using a sound level meter at slow response with a reference pressure of twenty micronewtons per square meter. The unit of measurement shall be designated as dB(A). "Person" means a person, firm, association, copartnership, joint venture, corporation or A. In order to control unnecessary, excessive and annoying sounds emanating from incorporated areas of the City, it is hereby declared to be the policy of the City to prohibit such sounds generated from all sources as specified in this chapter.

B. It is determined that certain sound levels are detrimental to the public health, welfare and safety, and contrary to public interest.

City of Yorba Linda, CA
§ 8.32.010 § 8.32.020
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"Residential property" means a parcel of real property which is developed and used either in part or in whole for residential purposes, other than transient uses such as hotels and motels.
"Simple tone noise" means a noise characterized by a predominant frequency or frequencies so that other frequencies cannot be readily distinguished. "Sound amplifying equipment" means and includes any machine or device for the amplification of the human voice, music or any other sound or by which the human voice, music or any other sound is amplified. Sound amplifying equipment shall not include warning devices on authorized emergency vehicles or horns or other warning devices on any vehicle used only for traffic safety purposes. "Sound level meter" means an instrument meeting American National Standard Institute's Standard S1.4-1971 for Type 1 or Type 2 sound level meters or an instrument, and the associated recording and analyzing equipment, which will provide equivalent data.
"Sound pressure level" of a sound, in decibels, means twenty times the logarithm to the base ten of the ratio of the pressure of the sound to a reference pressure, which reference pressure is explicitly stated.
(Prior code § 19A-2)
§ 8.32.030. Enforcement authority.
(Prior code § 19A-11)
§ 8.32.040. Measurement criteria.

Any noise level measurements made pursuant to the provisions of this chapter shall be performed using a sound level meter as defined in Section 8.32.020 of this chapter. (Prior code § 19A-3)
§ 8.32.050. Noise zones designated.

The residential properties hereinafter described are assigned to the following noise zones: Noise Zone 1: All residential properties in the City. (Prior code § 19A-4)
§ 8.32.060. Noise standards—Exterior.

A. The Council Health Officer and his or her duly authorized representatives are directed to enforce the provisions of this chapter. The County Health Officer and his or her duly authorized representatives are authorized, pursuant to Penal Code Section 836.5, to arrest any person without a warrant when they have reasonable cause to believe that such person has committed a misdemeanor in their presence.

B. No person shall interfere with, oppose or resist any authorized person charged with the enforcement of this chapter which such person is engaged in the performance of his or her duty.

City of Yorba Linda, CA
§ 8.32.020 § 8.32.060
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§ 8.32.070. Noise standards—Interior.

A. The following noise standards, unless otherwise specifically indicated, shall apply to all residential property within a designated noise zone:

Noise Standards
Noise Zone Noise Level Time Period
I 55 dB(A) 7 a.m.—10 p.m.
50 dB(A) 10 p.m.—7 a.m.

B. It is unlawful for any person, at any location within the City, to create any noise which causes the noise level when measured on any residential property to exceed:

1. The noise standard for a cumulative period of more than thirty minutes in any hour;

2. The noise standard plus five dB(A) for a cumulative period of more than fifteen minutes in any hour;

3. The noise standard plus ten dB(A) for a cumulative period of more than five minutes in any hour;

4. The noise standard plus fifteen dB(A) for a cumulative period of more than one minute in any hour; or

5. The noise standard plus twenty dB(A) for any period of time.

C. In the event the ambient noise level exceeds any of the five noise limit categories stated in subsection B of this section, the cumulative period applicable to said category shall be increased to reflect said ambient noise level. Furthermore, the maximum permissible noise level shall never exceed the maximum ambient noise level.

D. Each of the noise limits specified in this section shall be reduced by five dB(A) for impact or simple tone noises or for noises consisting of speech or music.

A. It is unlawful for any person at any location within the City to create any noise which causes the noise level when measured within a dwelling unit on any residential property during the period ten p.m. to seven a.m. to exceed:

1. Forty-five dB(A) for a cumulative period of more than five minutes in any hour;

2. Fifty dB(A) for a cumulative period of more than one minute in any hour; or

3. Fifty-five dB(A) for any period of time.

B. In the event that the ambient noise level exceeds any of the above three noise limit City of Yorba Linda, CA
§ 8.32.060 § 8.32.070
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§ 8.32.080. Exterior and interior noise level measurement.

The location selected for measuring exterior noise levels shall be at any point on the affected residential property. In the case of interior noise measurement, the windows shall be closed and the measurements shall be made at a point at least four feet from the wall, ceiling or floor nearest the noise source.
(Prior code § 19A-10)
§ 8.32.090. Exemptions.

The following activities shall be exempt from the provisions of this chapter:
categories, the cumulative period applicable to said category shall be increased to reflect said ambient noise level. Furthermore, the maximum permissible noise level shall never exceed the maximum ambient noise level.

A. School bands, school athletic and school entertainment events; B. Activities otherwise lawfully conducted on parks, public playgrounds and school grounds, provided such parks, playgrounds and school grounds are owned and operated by a public entity;
C. Any mechanical device, apparatus or equipment used, related to or connected with emergency machinery, vehicles or work;
D. Noise sources associated with construction, repair, remodeling, or grading of any real property, provided said activities do not take place between the hours of eight p.m. and seven a.m. on weekdays, including Saturday, or at any time on Sunday or a Federal holiday;
E. All mechanical devices, apparatus or equipment which are utilized for the protection or salvage of agricultural crops during periods of potential or actual frost damage or other adverse weather conditions;
F. Mobile noise sources associated with agricultural operations, provided such operations do not take place between the hours of eight p.m. and seven a.m. on weekdays, including Saturday, or at any time on Sunday or a Federal holiday; G. Mobile noise sources associated with agricultural pest control through pesticide application, provided that the application is made in accordance with restricted material permits issued by or regulations enforced by the Agricultural Commissioner;
H. Noise sources associated with the maintenance of real property used for residential purposes, provided said activities take place between the hours of seven a.m. and eight p.m. on any day except Sunday, or between the hours of nine a.m. and eight p.m. on Sunday;
I. Any activity to the extent regulation thereof has been preempted by State or Federal City of Yorba Linda, CA
§ 8.32.070 § 8.32.090
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§ 8.32.100. Noise standards—Schools, hospitals and churches.

It is unlawful for any person to create any noise which causes the noise level at any school, hospital or church, while the same is in use, to exceed the noise limits as specified in Section 8.32.060 prescribed for the assigned noise zone in which the school, hospital or church is located, or which noise level unreasonably interferes with the use of such institution or which unreasonably disturbs or annoys patients in the hospital, provided conspicuous signs are displayed in three separate locations within one-tenth of a mile of the institution indicating the presence of a school, church, or hospital. (Prior code § 19A-8)
§ 8.32.110. Special provisions for air-conditioning and refrigeration.

During the five year period following the effective date of the ordinance codified in this chapter, the noise standards enumerated in Sections 8.32.060 and 8.32.070 shall be increased eight dB(A) where the alleged offensive noise source is an air-conditioning or refrigeration system or associated equipment which was installed prior to the effective date of the ordinance codified in this chapter.
(Prior code § 19A-9)
§ 8.32.120. Variance procedure.
law.

J. Noise sources associated with the maintenance of real property owned or operated by a public entity, such as but not limited to golf courses, libraries, municipal buildings, parks, playgrounds, recreation facilities, and school grounds.

A. The owner or operator of a noise source which violates any of the provisions of this chapter may file an application with the Health Officer for a variance from the provisions thereof wherein the owner or operator shall set forth all actions taken to comply with said provisions, the reasons why immediate compliance cannot be achieved, a proposed method of achieving compliance, and a proposed time schedule for its accomplishment.

B. The application shall be accompanied by a fee set by resolution of the City Council, which may be updated from time to time.

C. A separate application shall be filed for each noise source; provided, however, that several mobile sources under common ownership, or several fixed sources of a single property, may be combined into one application.

D. Upon receipt of said application and fee, the Health Officer shall refer it with his or her recommendation thereon within thirty days to the noise variance board for action thereon in accordance with the provisions of this chapter.

E. An applicant for a variance shall remain subject to prosecution under the terms of this chapter until the variance is granted.

City of Yorba Linda, CA
§ 8.32.090 § 8.32.120
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§ 8.32.130. Noise Variance Board—Composition and duties of. (Prior code § 19A-13)
A. There is hereby created a Noise Variance Board consisting of five members. Two of the members shall be professional engineers, registered in this State, one of whom shall have demonstrated knowledge and experience in the field of acoustics; the other shall be a registered mechanical engineer. One member shall be a physician, licensed in this state and qualified in the field of physiological effects of noise; one, a representative of business and industry, and one, a representative of the general public.

B. The Noise Variance Board shall evaluate all applications for variance from the requirements of this chapter and may grant variances with respect to time for compliance, subject to such terms, conditions and requirements as it may deem reasonable to achieve maximum compliance with the provisions of this chapter.

C. Terms, conditions, and requirements may include, but shall not be limited to, limitations on noise levels and operating hours. Each such variance shall set forth in detail the approved method of achieving maximum compliance and a time schedule for its accomplishment. In its determinations the Board shall consider:

1. The magnitude of nuisance caused by the offensive noise;

2. The uses of property within the area of impingement by the noise;

3. The time factors related to study, design, financing and construction of remedial work;

4. The economic factors related to age and useful life of equipment; and

5. The general public interest and welfare.

D. Any variance granted by the Board shall be by enforcement. Any violation of the terms of said variance shall be unlawful.

E. Members of the Variance Board shall be appointed by, and shall serve at the pleasure of, the Orange County Board of Supervisors. The Variance Board shall adopt reasonable rules and regulations for its own procedures in carrying out its functions under the provisions of this chapter.

F. Three members shall constitute a quorum and at least three affirmative votes shall be required in support of any action.

G. The Health Officer, or his or her appointed representative, shall be a nonvoting exofficio member of the Variance Board, and shall act as secretary of the Board.

H. Meetings of the Noise Variance Board shall be held at the call of the secretary and at such times and locations as said board shall determine. All such meetings shall be open to the public.

City of Yorba Linda, CA
§ 8.32.120 § 8.32.140
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(Prior code § 19A-14)
A. Within fifteen days following the decision of the Variance Board on an application, the applicant, the Health Officer, or any member of the City Council, may appeal the decision to the City Council by filing a notice of appeal with the secretary of the Variance Board. In the case of an appeal by the applicant for a variance, the notice of appeal shall be accompanied by a fee to be computed by the secretary on the basis of the estimated cost of preparing the materials required to be forwarded to the city council as discussed hereafter. If the actual cost of such preparation differs from the estimated cost, the applicant shall pay the amount of any deficiency to the secretary and the secretary shall pay the amount of any excess to the applicant.

B. Within fifteen days following receipt of a notice of appeal and the appeal fee, the secretary of the Variance Board shall forward to the City Council:

1. Copies of the application for variance;

2. The recommendation of the Health Officer;

3. The notice of appeal;

4. All evidence concerning the application received by the variance board and its decision thereon.

C. In addition, any person may file with the City Council written arguments supporting or attacking the decision and the City Council may in its discretion hear oral arguments thereon.

D. The City Clerk shall mail the applicant a notice of the date set for hearing of the appeal. The notice shall be mailed at least ten days prior to the hearing date.

E. Within sixty days following its receipt of the notice of appeal, the City Council shall either affirm, modify or reverse the decision of the Variance Board. Such decision shall be based upon the Council's evaluation of the matters submitted to the Council in light of the powers conferred on the Variance Board and the factors to be considered, both as enumerated in Sections 8.32.120 and 8.32.130.

F. As part of its decision, the Council may direct the Variance Board to conduct further proceedings on the application. Failure of the City Council to affirm, modify or reverse the decision of the Variance Board within the sixty-day period shall constitute an affirmance of the decision.

City of Yorba Linda, CA
§ 8.32.140 § 8.32.140
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Sound Amplifying Equipment
§ 8.32.150. Permit required.
(Prior code § 19A-15)
§ 8.32.160. Application for permit—Procedure—Term.

The application for any such permit shall be in writing signed by an applicant at least eighteen years of age and filed with the City Clerk at least three business days prior to the event unless excused for cause by the City Manager. It shall state the following:

A. No person shall operate a loudspeaker, public address system or sound amplification system or play any musical instrument anywhere in the City if such loudspeaker, public address system or sound amplification system or musical instrument can be heard outside any building, save and excepting as follows:

1. If the loudspeaker, public address system or sound amplification system is to be operated or musical instrument is to be played from a motor vehicle, it must be done in accordance with Section 10.04.140 and any other applicable ordinances of the City.

2. If the loudspeaker, public address system or sound amplification system is to be operated, or musical instrument is to be played, other than from an automobile at any time of the day or night, such operation must first be approved by the City Manager by the issuance of a permit.

3. If the loudspeaker, public address system, sound amplification system or musical instrument is used in connection with a parade for which a permit has been obtained, this section shall not be applicable.

4. No person shall use or operate any sound amplifying equipment so that the sound being emitted therefrom is raucous, jarring, or disturbing to those within the area of audibility.

A. Name and home address of the applicant;
B. Address and place of business of applicant;
C. Name and address of person having direct charge of the sound amplifying equipment desired to be used;
D. The purpose for which the sound amplifying equipment will be used; E. The address and type of place where the sound amplifying equipment will be used; F. The hours during which such sound amplifying equipment will be used; G. Proposed days and number of days of operation;
H. A general description of the sound amplifying equipment which is to be used; City of Yorba Linda, CA
§ 8.32.150 § 8.32.160
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§ 8.32.170. Permit—Terms and conditions.

All such permits issued for the use of such sound amplifying equipment shall be issued subject to the following conditions:
(Prior code § 19A-17)
§ 8.32.180. Permit—Display of required.

It shall be the duty of the applicant to display any permit received pursuant to this chapter at any event in which said permit is utilized.
(Prior code § 19A-19)
I. The maximum sound producing power of the sound amplifying equipment to be used; and

1. The wattage to be used,

2. The approximate maximum distance for which sound will be thrown from the room, stadium, structure, public place or lot in or on which such sound amplifying equipment will be located;
J. The form of application for permit shall be provided by the City and shall provide for the above information together with a reference to Civil Code Section 1714.1 for the information of the applicant.

K. All permits shall be issued for one day at a time.

A. The sound amplifying equipment shall not be used between the hours of eleven p.m. and eight a.m., except that for Easter sunrise services such equipment may be permitted starting at six a.m.

B. Sound from the sound amplifying equipment shall not be cast such a distance that it will interfere with or disturb the occupants of any hospital, sanitarium, school, church, courtroom, place of residence or public assemblage.

C. The sound amplifying equipment shall be used only for the producing of human speech or song or music and the speech or song shall not be profane, lewd, indecent, slanderous or of such character as to tend to incite riot or other public disorder nor shall such speech or song advocate disloyalty to or the overthrow of the government of the United States by arms or other unlawful means nor shall such speech or song urge any unlawful conduct or encourage or reasonably tend to encourage a breach of the public peace of the community.

D. The sound from the sound amplifying equipment shall not interfere unreasonably with the rest, repose, peace or normal activities of those persons within the vicinity of the location of such sound amplifying equipment.

E. The sound amplifying equipment shall be used only in accordance with and in compliance with the statements set forth in the application for the permit.

City of Yorba Linda, CA
§ 8.32.160 § 8.32.190
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After the issuance of the permit, the City Manager shall revoke such permit if the sound amplifying equipment permitted to be used thereby is used or operated contrary to any of the provisions of this chapter.
(Prior code § 19A-18)
§ 8.32.200. Violation—Penalty.

Any person violating any of the provisions of this chapter is guilty of a misdemeanor.

Each day such violation is committed or permitted to continue constitutes a separate offense and is punishable as such. The provisions of this chapter shall not be construed as permitting conduct not prescribed herein and shall not affect the enforceability of any other applicable provisions of law.
(Prior code § 19A-20)
City of Yorba Linda, CA
§ 8.32.190 § 8.32.200
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APPENDIX 5.1:

NOISE MEASUREMENT STUDY AREA PHOTOS

63 Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
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64 JN:15459
L1_E
33, 54' 13.850000", 117, 50' 20.330000"
L1_N
33, 54' 13.830000", 117, 50' 20.280000"
L1_S
33, 54' 13.860000", 117, 50' 20.280000"
L1_W
33, 54' 13.890000", 117, 50' 20.390000"
L2_E
33, 53' 58.520000", 117, 50' 5.420000"
L2_N
33, 53' 58.580000", 117, 50' 5.450000"

65 JN:15459
L2_S
33, 53' 58.550000", 117, 50' 5.450000"
L2_W
33, 53' 58.520000", 117, 50' 5.470000"
L3_E
33, 53' 2.840000", 117, 49' 30.950000"
L3_N
33, 53' 2.840000", 117, 49' 31.030000"
L3_S
33, 53' 2.810000", 117, 49' 31.010000"
L3_W
33, 53' 2.810000", 117, 49' 30.950000"

66 JN:15459
L4_E
33, 53' 27.270000", 117, 49' 48.120000"
L4_N
33, 53' 27.400000", 117, 49' 48.170000"
L4_S
33, 53' 27.320000", 117, 49' 48.140000"
L4_W
33, 53' 27.250000", 117, 49' 48.140000"
L5_E
33, 53' 59.520000", 117, 49' 10.130000"
L5_N
33, 53' 59.550000", 117, 49' 10.190000"

67 JN:15459
L5_S
33, 53' 59.540000", 117, 49' 10.190000"
L5_W
33, 53' 59.500000", 117, 49' 10.160000"
L6_E
33, 53' 30.990000", 117, 48' 54.040000"
L6_N
33, 53' 30.950000", 117, 48' 54.120000"
L6_S
33, 53' 30.950000", 117, 48' 54.120000"
L6_W
33, 53' 30.990000", 117, 48' 54.060000"

68 JN:15459
L7_E
33, 52' 24.420000", 117, 44' 19.410000"
L7_N
33, 52' 24.400000", 117, 44' 19.520000"
L7_S
33, 52' 24.410000", 117, 44' 19.490000"
L7_W
33, 52' 24.440000", 117, 44' 19.380000"
L8_E
33, 54' 15.100000", 117, 46' 49.450000"
L8_N
33, 54' 15.170000", 117, 46' 49.480000"

69 JN:15459
L8_S
33, 54' 15.070000", 117, 46' 49.450000"
L8_W
33, 54' 15.070000", 117, 46' 49.420000"
L9_E
33, 53' 12.860000", 117, 48' 59.720000"
L9_N
33, 53' 12.930000", 117, 48' 59.500000"
L9_S
33, 53' 12.870000", 117, 48' 59.670000"
L9_W
33, 53' 12.860000", 117, 48' 59.780000"

70 JN:15459
L10_E
33, 53' 23.270000", 117, 48' 4.710000"
L10_N
33, 53' 23.310000", 117, 48' 4.740000"
L10_S
33, 53' 23.280000", 117, 48' 4.710000"
L10_W
33, 53' 23.240000", 117, 48' 4.740000"

71 Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
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72 Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
APPENDIX 5.2:

NOISE LEVEL MEASUREMENT WORKSHEETS

73 Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
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74 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 48.6 53.8 45.7 53.6 53.3 52.5 51.8 49.2 47.4 46.1 45.9 45.8 48.6 10.0 58.6 1 50.7 59.7 45.2 59.3 58.9 57.8 56.4 48.9 46.9 45.6 45.4 45.2 50.7 10.0 60.7 2 47.1 52.5 44.5 52.3 51.9 50.9 50.1 47.4 45.7 44.9 44.8 44.6 47.1 10.0 57.1 3 48.6 54.2 45.4 54.0 53.6 52.9 52.4 49.2 47.0 45.8 45.7 45.5 48.6 10.0 58.6 4 50.0 55.4 46.5 55.1 54.7 53.9 53.3 50.7 48.9 47.0 46.8 46.6 50.0 10.0 60.0 5 54.7 60.8 50.3 60.3 59.9 58.9 58.2 55.2 53.5 51.3 50.9 50.5 54.7 10.0 64.7 6 55.8 62.0 50.5 61.6 61.3 60.1 59.3 56.7 54.5 51.3 50.9 50.6 55.8 10.0 65.8 7 56.6 62.1 51.5 61.7 61.4 60.4 59.7 57.5 55.6 52.6 52.0 51.7 56.6 0.0 56.6 8 55.6 61.2 50.6 60.8 60.4 59.5 58.8 56.3 54.6 51.7 51.2 50.7 55.6 0.0 55.6 9 55.2 62.6 48.2 61.8 61.3 60.2 59.7 55.7 53.3 49.5 48.9 48.4 55.2 0.0 55.2 10 54.4 61.5 49.2 60.9 60.3 59.0 57.9 54.9 53.1 50.3 49.8 49.3 54.4 0.0 54.4 11 58.2 63.3 55.2 63.0 62.8 61.9 61.0 58.4 57.3 55.9 55.6 55.3 58.2 0.0 58.2 12 53.6 68.2 48.3 67.0 65.9 63.2 61.1 57.2 54.1 49.6 49.0 48.5 53.6 0.0 53.6 13 54.2 60.3 48.3 59.8 59.3 58.4 57.6 55.1 53.1 49.5 48.9 48.4 54.2 0.0 54.2 14 56.7 67.4 49.6 66.5 65.0 61.7 60.0 56.6 54.2 50.8 50.3 49.8 56.7 0.0 56.7 15 55.7 62.3 50.8 61.7 61.1 59.9 58.9 56.3 54.6 51.9 51.4 50.9 55.7 0.0 55.7 16 55.2 60.8 50.7 60.4 59.9 59.0 58.4 55.8 54.2 51.9 51.3 50.8 55.2 0.0 55.2 17 54.0 62.2 49.0 61.0 59.8 58.3 57.0 54.5 52.8 50.1 49.6 49.1 54.0 0.0 54.0 18 54.9 61.5 49.0 61.0 60.4 59.2 58.4 55.7 53.8 50.2 49.6 49.1 54.9 0.0 54.9 19 55.0 62.8 47.9 62.5 62.1 61.0 59.4 55.1 52.9 49.3 48.6 48.1 55.0 5.0 60.0 20 56.0 62.1 48.3 61.9 61.6 60.8 60.1 57.1 54.3 49.7 49.0 48.5 56.0 5.0 61.0 21 53.6 59.5 47.6 59.2 58.9 58.1 57.4 54.6 52.2 48.6 48.2 47.7 53.6 5.0 58.6 22 52.9 58.5 48.2 58.3 57.9 57.1 56.5 53.7 51.6 49.0 48.6 48.3 52.9 10.0 62.9 23 50.9 56.2 47.2 55.9 55.5 54.7 54.1 51.6 49.7 47.8 47.6 47.3 50.9 10.0 60.9 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 53.6 59.5 47.6 59.2 58.9 58.1 57.0 54.5 52.2 48.6 48.2 47.7 Max 58.2 68.2 55.2 67.0 65.9 63.2 61.1 58.4 57.3 55.9 55.6 55.3

55.4 62.0 61.4 60.0 59.0 56.1 54.0 50.8 50.2 49.8
Min 47.1 52.5 44.5 52.3 51.9 50.9 50.1 47.4 45.7 44.9 44.8 44.6 Max 55.8 62.0 50.5 61.6 61.3 60.1 59.3 56.7 54.5 51.3 50.9 50.6

51.9 56.7 56.3 55.4 54.7 51.4 49.5 47.6 47.4 47.2
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

59.5 55.4 51.9
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L1 - Site S1-021 - West of 16951 Imperial Highway Night
Day

48.650.747.148.650.0

54.7 55.8

56.6 55.6

55.2 54.4

58.2 53.6

54.2 56.7

55.7 55.2

54.0 54.9

55.0 56.0

53.6 52.950.9

35.0 40.0

45.0 50.0

55.0 60.0

65.0 70.0

75.0 80.0

85.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L1_A Page 653 of 1357 75 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 48.9 57.7 43.4 57.5 57.1 55.3 53.8 48.1 45.6 43.9 43.7 43.5 48.9 10.0 58.9 1 49.2 58.0 43.2 57.6 57.0 55.6 54.3 48.7 45.3 43.8 43.6 43.4 49.2 10.0 59.2 2 47.1 56.3 41.8 56.1 55.8 54.2 52.2 45.2 43.6 42.3 42.2 42.0 47.1 10.0 57.1 3 47.6 56.1 43.3 55.8 55.4 53.7 51.9 46.5 45.0 43.7 43.6 43.4 47.6 10.0 57.6 4 50.4 58.6 45.2 58.4 58.1 56.4 54.7 49.9 47.7 45.8 45.6 45.3 50.4 10.0 60.4 5 54.6 63.4 48.2 63.1 62.7 61.1 59.4 53.8 51.0 48.9 48.6 48.3 54.6 10.0 64.6 6 62.9 74.5 50.5 74.0 73.5 71.2 68.4 59.0 55.8 51.5 51.0 50.6 62.9 10.0 72.9 7 61.2 67.6 52.7 67.3 66.9 65.9 65.2 62.6 59.8 54.0 53.3 52.8 61.2 0.0 61.2 8 61.1 68.8 51.6 68.5 68.1 66.6 65.7 62.0 58.8 53.2 52.4 51.7 61.1 0.0 61.1 9 63.3 75.1 50.4 74.9 74.3 70.7 67.6 60.5 56.9 51.8 51.1 50.6 63.3 0.0 63.3 10 59.2 67.8 50.8 67.5 67.0 64.7 63.2 59.6 56.7 52.3 51.7 51.0 59.2 0.0 59.2 11 58.2 66.7 49.1 66.4 65.9 64.0 62.6 58.8 55.4 50.2 49.8 49.3 58.2 0.0 58.2 12 57.3 64.9 48.7 64.6 64.2 62.9 62.0 58.4 54.6 49.9 49.3 48.8 57.3 0.0 57.3 13 59.8 70.4 48.4 70.0 69.0 66.5 64.0 59.3 55.2 50.1 49.2 48.6 59.8 0.0 59.8 14 58.5 65.8 48.3 65.5 65.1 63.9 62.9 59.9 56.1 50.1 49.2 48.5 58.5 0.0 58.5 15 59.9 68.5 49.6 68.0 67.3 65.4 64.1 60.7 57.7 51.6 50.6 49.8 59.9 0.0 59.9 16 64.9 79.5 50.5 77.8 75.8 71.0 67.6 61.9 58.7 53.8 52.4 51.0 64.9 0.0 64.9 17 58.5 65.7 49.1 65.5 65.0 63.5 62.6 59.7 56.7 50.8 50.0 49.3 58.5 0.0 58.5 18 59.3 66.4 48.8 66.1 65.8 64.5 63.5 60.4 57.6 50.8 49.8 49.0 59.3 0.0 59.3 19 57.8 67.3 47.1 66.8 65.9 63.7 62.1 58.7 54.7 48.3 47.7 47.2 57.8 5.0 62.8 20 58.0 67.6 47.4 67.2 66.4 64.1 62.4 58.5 54.7 49.2 48.2 47.5 58.0 5.0 63.0 21 55.9 64.2 46.8 63.9 63.6 62.2 60.7 56.4 52.5 47.7 47.2 46.9 55.9 5.0 60.9 22 53.8 61.9 46.8 61.7 61.4 59.9 58.7 54.0 50.3 47.6 47.2 46.9 53.8 10.0 63.8 23 51.6 60.7 45.2 60.4 60.0 58.0 56.4 51.3 47.8 45.8 45.6 45.3 51.6 10.0 61.6 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 55.9 64.2 46.8 63.9 63.6 62.2 60.7 56.4 52.5 47.7 47.2 46.9 Max 64.9 79.5 52.7 77.8 75.8 71.0 67.6 62.6 59.8 54.0 53.3 52.8

60.2 68.0 67.4 65.3 63.8 59.8 56.4 50.9 50.1 49.5
Min 47.1 56.1 41.8 55.8 55.4 53.7 51.9 45.2 43.6 42.3 42.2 42.0 Max 62.9 74.5 50.5 74.0 73.5 71.2 68.4 59.0 55.8 51.5 51.0 50.6

55.3 60.5 60.1 58.4 56.6 50.7 48.0 45.9 45.7 45.4
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

63.1 60.2 55.3
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L2 - Site S2-008 - 17151 Bastanchury Road Night
Day

48.949.247.147.650.4

54.6 62.9

61.2 61.1

63.3 59.2

58.2 57.3

59.8 58.5

59.9 64.9

58.5 59.3

57.8 58.0

55.9 53.8

51.6 35.0

40.0 45.0

50.0 55.0

60.0 65.0

70.0 75.0

80.0 85.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L2_I Page 654 of 1357 76 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 40.7 45.8 37.2 45.5 45.1 44.5 44.1 41.3 39.1 37.9 37.7 37.4 40.7 10.0 50.7 1 38.3 42.2 36.4 41.7 41.3 40.6 40.2 38.8 37.7 36.8 36.7 36.5 38.3 10.0 48.3 2 37.0 39.5 35.9 39.3 39.1 38.6 38.3 37.2 36.7 36.2 36.1 36.0 37.0 10.0 47.0 3 38.8 41.3 37.4 41.1 40.9 40.4 40.1 39.1 38.5 37.9 37.7 37.5 38.8 10.0 48.8 4 40.9 44.0 39.0 43.7 43.5 42.9 42.6 41.4 40.6 39.5 39.3 39.1 40.9 10.0 50.9 5 45.0 50.2 42.2 49.7 49.1 47.8 47.2 45.5 44.3 42.9 42.7 42.4 45.0 10.0 55.0 6 45.5 49.7 42.7 49.2 48.8 48.1 47.6 46.1 44.9 43.4 43.1 42.9 45.5 10.0 55.5 7 46.6 52.2 42.8 51.8 51.4 50.1 49.4 47.2 45.5 43.6 43.3 42.9 46.6 0.0 46.6 8 48.1 54.9 42.3 54.6 54.3 53.4 52.7 48.5 45.5 43.1 42.8 42.5 48.1 0.0 48.1 9 47.8 54.3 41.3 53.9 53.4 52.5 51.9 49.2 45.7 42.5 41.9 41.5 47.8 0.0 47.8 10 47.7 54.5 42.0 54.1 53.7 52.9 52.1 47.9 45.7 43.4 42.7 42.2 47.7 0.0 47.7 11 49.4 54.5 44.3 54.1 53.7 53.0 52.5 50.5 48.3 45.5 45.0 44.4 49.4 0.0 49.4 12 56.1 69.9 57.5 69.0 68.0 66.2 65.2 62.9 59.5 58.2 58.0 57.6 56.1 0.0 56.1 13 49.8 71.6 51.5 70.1 68.6 65.9 64.4 60.5 57.9 54.2 52.9 51.8 49.8 0.0 49.8 14 47.3 52.8 42.4 52.5 52.1 51.3 50.5 48.2 46.1 43.5 43.0 42.5 47.3 0.0 47.3 15 48.9 56.8 43.0 56.3 55.6 54.0 52.9 49.4 46.8 44.0 43.6 43.1 48.9 0.0 48.9 16 47.0 54.0 42.3 53.5 53.0 51.8 50.7 47.5 45.4 43.2 42.8 42.4 47.0 0.0 47.0 17 46.9 54.8 42.0 54.2 53.6 51.5 50.6 47.1 45.2 43.0 42.6 42.1 46.9 0.0 46.9 18 47.4 55.5 41.0 55.2 54.7 53.2 52.1 47.2 44.8 42.2 41.7 41.2 47.4 0.0 47.4 19 45.6 52.7 40.3 52.2 51.6 50.4 49.6 45.8 43.9 41.3 40.9 40.4 45.6 5.0 50.6 20 43.6 49.2 39.3 48.9 48.5 47.5 46.7 44.5 42.4 40.0 39.7 39.4 43.6 5.0 48.6 21 44.0 49.1 39.8 48.9 48.6 48.0 47.3 44.8 42.8 40.5 40.2 40.0 44.0 5.0 49.0 22 43.0 48.0 39.6 47.8 47.5 46.8 46.3 43.5 41.8 40.1 39.9 39.8 43.0 10.0 53.0 23 42.1 48.9 38.5 48.5 47.9 47.0 46.4 42.2 40.2 39.1 38.8 38.6 42.1 10.0 52.1 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 43.6 49.1 39.3 48.9 48.5 47.5 46.7 44.5 42.4 40.0 39.7 39.4 Max 56.1 71.6 57.5 70.1 68.6 66.2 65.2 62.9 59.5 58.2 58.0 57.6

49.0 55.3 54.7 53.4 52.6 49.4 47.0 44.6 44.1 43.6
Min 37.0 39.5 35.9 39.3 39.1 38.6 38.3 37.2 36.7 36.2 36.1 36.0 Max 45.5 50.2 42.7 49.7 49.1 48.1 47.6 46.1 44.9 43.4 43.1 42.9

42.1 45.2 44.8 44.1 43.6 41.7 40.4 39.3 39.1 38.9
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

50.7 49.0 42.1
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L3 - Site S2-012 - 5320 Richfield Road Night
Day

40.738.337.038.840.945.045.546.648.147.847.749.4

56.1 49.847.348.947.046.947.445.643.644.043.042.1

35.0 40.0

45.0 50.0

55.0 60.0

65.0 70.0

75.0 80.0

85.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L3_E Page 655 of 1357 77 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 45.0 54.3 40.7 53.5 52.9 51.6 50.1 43.4 42.1 41.1 41.0 40.8 45.0 10.0 55.0 1 41.0 43.3 39.9 43.0 42.8 42.3 42.0 41.3 40.8 40.2 40.1 40.0 41.0 10.0 51.0 2 40.6 43.7 39.6 43.4 43.0 42.3 41.7 40.7 40.3 39.9 39.8 39.7 40.6 10.0 50.6 3 42.1 44.4 40.9 44.2 44.0 43.7 43.4 42.5 41.9 41.2 41.1 41.0 42.1 10.0 52.1 4 44.5 49.7 42.8 49.4 49.0 47.7 46.5 44.4 43.7 43.1 43.0 42.9 44.5 10.0 54.5 5 47.5 51.2 45.8 50.8 50.4 49.6 49.0 47.8 47.1 46.3 46.2 45.9 47.5 10.0 57.5 6 49.5 56.7 47.4 56.4 56.0 51.8 50.5 49.1 48.5 47.8 47.7 47.5 49.5 10.0 59.5 7 51.9 60.5 47.6 60.0 59.3 57.2 55.7 52.1 49.7 48.3 48.0 47.8 51.9 0.0 51.9 8 56.8 62.7 49.3 62.4 62.1 61.4 60.9 58.1 55.2 50.9 50.3 49.5 56.8 0.0 56.8 9 58.9 63.5 51.5 63.2 63.0 62.4 62.0 60.0 58.6 54.0 53.1 51.8 58.9 0.0 58.9 10 67.2 71.5 61.4 71.3 71.0 70.5 70.1 68.2 66.4 63.5 62.8 61.6 67.2 0.0 67.2 11 66.0 73.7 61.5 72.2 71.0 68.8 67.9 66.5 65.3 63.1 62.5 61.8 66.0 0.0 66.0 12 67.6 76.3 58.4 75.0 74.2 72.2 71.2 68.6 66.3 60.4 59.7 58.8 67.6 0.0 67.6 13 63.2 75.4 51.4 73.8 72.3 68.5 66.7 62.9 59.9 54.2 53.2 51.9 63.2 0.0 63.2 14 58.0 65.5 53.6 64.9 64.4 63.1 62.0 57.9 56.1 54.3 54.0 53.8 58.0 0.0 58.0 15 59.2 64.8 53.7 64.5 64.1 63.3 62.5 59.9 58.2 55.4 54.8 53.9 59.2 0.0 59.2 16 54.9 61.0 49.8 60.7 60.4 59.2 58.3 55.8 53.6 50.7 50.3 49.9 54.9 0.0 54.9 17 48.0 56.0 43.6 55.6 55.0 53.1 51.8 47.8 45.8 44.2 44.0 43.7 48.0 0.0 48.0 18 50.5 58.3 44.1 57.9 57.5 56.2 55.2 50.7 47.6 44.9 44.5 44.2 50.5 0.0 50.5 19 47.3 55.8 42.5 55.2 54.5 52.6 51.3 47.3 44.9 43.1 42.9 42.6 47.3 5.0 52.3 20 50.3 57.4 43.9 57.0 56.7 55.8 54.9 51.1 47.5 44.9 44.5 44.1 50.3 5.0 55.3 21 47.1 53.1 43.9 52.5 52.0 50.9 50.0 47.5 46.0 44.5 44.3 44.0 47.1 5.0 52.1 22 48.4 56.0 44.8 55.7 55.3 53.9 52.9 47.6 46.1 45.2 45.1 44.9 48.4 10.0 58.4 23 44.3 48.7 42.6 48.5 48.1 47.1 46.1 44.3 43.7 43.0 42.9 42.7 44.3 10.0 54.3 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 47.1 53.1 42.5 52.5 52.0 50.9 50.0 47.3 44.9 43.1 42.9 42.6 Max 67.6 76.3 61.5 75.0 74.2 72.2 71.2 68.6 66.4 63.5 62.8 61.8

61.4 63.1 62.5 61.0 60.0 57.0 54.7 51.8 51.3 50.6
Min 40.6 43.3 39.6 43.0 42.8 42.3 41.7 40.7 40.3 39.9 39.8 39.7 Max 49.5 56.7 47.4 56.4 56.0 53.9 52.9 49.1 48.5 47.8 47.7 47.5

45.8 49.4 49.1 47.8 46.9 44.6 43.8 43.1 43.0 42.8
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

60.1 61.4 45.8
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L4 - Site S2-013 - 4861 Liverpool Street Night
Day

45.041.040.642.144.547.549.551.9

56.8 58.9

67.2 66.0

67.6 63.2

58.0 59.2

54.9 48.050.547.350.347.148.444.3

35.0 40.0

45.0 50.0

55.0 60.0

65.0 70.0

75.0 80.0

85.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L4_W Page 656 of 1357 78 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 53.1 58.2 45.5 57.7 57.3 56.5 56.0 54.3 52.6 48.5 47.5 46.1 53.1 10.0 63.1 1 51.1 56.8 44.5 56.4 56.1 55.3 54.5 52.1 50.1 46.5 45.8 44.9 51.1 10.0 61.1 2 52.4 60.5 43.7 59.8 59.3 58.0 56.8 52.8 50.4 46.1 45.2 44.1 52.4 10.0 62.4 3 50.2 56.1 44.5 55.5 55.2 54.3 53.5 51.2 49.0 45.9 45.4 44.8 50.2 10.0 60.2 4 49.8 56.2 45.7 55.9 55.5 54.6 53.6 50.3 48.0 46.3 46.1 45.8 49.8 10.0 59.8 5 53.0 59.7 48.2 59.3 59.0 57.8 56.7 53.5 51.1 48.9 48.7 48.4 53.0 10.0 63.0 6 55.6 61.1 50.2 60.9 60.6 59.6 58.9 56.6 54.3 51.1 50.7 50.3 55.6 10.0 65.6 7 57.5 62.3 52.3 62.0 61.8 61.1 60.5 58.6 56.8 53.4 52.9 52.4 57.5 0.0 57.5 8 58.0 65.7 51.0 65.4 64.8 62.9 61.7 58.4 56.5 52.4 51.7 51.2 58.0 0.0 58.0 9 57.2 62.8 50.4 62.2 61.8 61.0 60.2 58.3 56.5 52.3 51.5 50.6 57.2 0.0 57.2 10 60.1 71.0 58.3 70.6 70.1 69.3 68.6 65.4 62.1 59.4 58.9 58.5 60.1 0.0 60.1 11 62.9 75.4 58.1 75.1 74.6 73.8 73.0 70.1 64.8 60.1 59.3 58.3 62.9 0.0 62.9 12 56.2 64.0 48.7 63.6 63.2 61.4 59.9 56.7 54.6 50.3 49.5 48.8 56.2 0.0 56.2 13 56.8 63.8 49.1 63.3 63.0 62.1 61.1 57.3 55.1 50.8 50.0 49.3 56.8 0.0 56.8 14 57.0 63.4 50.3 62.9 62.5 61.3 60.5 57.7 55.9 52.3 51.3 50.5 57.0 0.0 57.0 15 59.4 66.9 52.6 66.6 66.1 65.1 63.6 59.4 57.4 54.3 53.4 52.8 59.4 0.0 59.4 16 57.5 63.9 50.8 63.4 62.8 61.8 60.8 58.2 56.6 52.5 51.8 51.0 57.5 0.0 57.5 17 57.5 64.4 49.6 64.2 63.8 62.2 61.0 58.2 56.3 51.5 50.6 49.8 57.5 0.0 57.5 18 56.5 62.2 48.1 62.0 61.7 61.0 60.3 57.6 55.5 50.1 49.0 48.3 56.5 0.0 56.5 19 55.8 63.5 46.7 63.2 62.8 61.0 59.7 56.6 54.1 48.4 47.5 46.8 55.8 5.0 60.8 20 55.2 62.2 46.0 61.8 61.5 60.4 59.3 56.3 53.6 47.9 46.9 46.2 55.2 5.0 60.2 21 53.5 61.1 44.9 60.7 60.1 58.7 57.8 54.5 51.0 46.2 45.5 45.0 53.5 5.0 58.5 22 52.5 59.5 47.3 59.2 58.8 57.8 56.7 53.0 50.2 47.9 47.7 47.4 52.5 10.0 62.5 23 51.6 56.9 46.6 56.5 56.3 55.6 55.0 52.4 50.4 47.7 47.3 46.8 51.6 10.0 61.6 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 53.5 61.1 44.9 60.7 60.1 58.7 57.8 54.5 51.0 46.2 45.5 45.0 Max 62.9 75.4 58.3 75.1 74.6 73.8 73.0 70.1 64.8 60.1 59.3 58.5

58.0 64.5 64.0 62.9 61.9 58.9 56.5 52.1 51.3 50.6
Min 49.8 56.1 43.7 55.5 55.2 54.3 53.5 50.3 48.0 45.9 45.2 44.1 Max 55.6 61.1 50.2 60.9 60.6 59.6 58.9 56.6 54.3 51.1 50.7 50.3

52.5 57.9 57.6 56.6 55.8 52.9 50.7 47.7 47.1 46.5
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L5 - Site S3-210 - 18111 Bastanchury Road Night
Day
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

60.6 58.0 52.5

53.151.152.450.249.853.0

55.6 57.5

58.0 57.2

60.1 62.9

56.2 56.8

57.0 59.4

57.5 57.5

56.5 55.8

55.2 53.5

52.551.6

35.0 40.0

45.0 50.0

55.0 60.0

65.0 70.0

75.0 80.0

85.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L5_Z Page 657 of 1357 79 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 42.8 48.7 39.4 48.4 47.9 46.6 46.0 43.3 41.5 40.0 39.8 39.5 42.8 10.0 52.8 1 42.1 47.8 38.8 47.3 46.8 45.7 45.1 42.8 41.0 39.4 39.2 39.0 42.1 10.0 52.1 2 40.4 46.6 37.7 46.2 45.7 44.1 43.4 40.6 39.1 38.1 38.0 37.8 40.4 10.0 50.4 3 42.5 48.0 39.4 47.7 47.2 46.1 45.5 43.0 41.2 39.9 39.7 39.5 42.5 10.0 52.5 4 44.9 49.8 41.7 49.5 49.2 48.3 47.7 45.6 43.8 42.2 42.0 41.8 44.9 10.0 54.9 5 52.0 57.9 46.7 57.3 56.9 55.8 55.0 52.7 51.2 48.6 47.9 47.1 52.0 10.0 62.0 6 50.9 57.2 46.4 56.8 56.2 54.9 54.1 51.6 49.7 47.4 47.0 46.5 50.9 10.0 60.9 7 52.2 57.6 47.9 57.2 56.8 55.7 55.0 53.0 51.5 49.1 48.6 48.1 52.2 0.0 52.2 8 52.9 59.7 47.8 59.3 58.7 57.2 56.2 53.3 51.6 48.9 48.4 47.9 52.9 0.0 52.9 9 53.0 61.2 47.8 60.2 59.1 57.2 56.3 53.3 51.6 49.2 48.6 48.0 53.0 0.0 53.0 10 50.7 57.4 45.9 56.9 56.3 55.0 54.2 51.1 49.2 46.9 46.5 46.0 50.7 0.0 50.7 11 51.1 56.8 47.2 56.3 55.8 54.6 53.9 51.8 50.2 48.1 47.8 47.4 51.1 0.0 51.1 12 52.1 59.8 47.2 59.2 58.5 57.1 56.0 52.1 50.2 48.1 47.8 47.3 52.1 0.0 52.1 13 52.2 59.4 47.9 58.8 58.0 56.7 55.7 52.3 50.8 48.8 48.5 48.1 52.2 0.0 52.2 14 52.3 57.4 48.8 56.9 56.4 55.5 54.8 52.9 51.6 49.8 49.4 49.0 52.3 0.0 52.3 15 51.7 57.6 47.5 57.2 56.7 55.2 54.5 52.4 50.8 48.4 48.0 47.6 51.7 0.0 51.7 16 52.7 61.3 47.2 60.9 60.3 57.4 56.6 52.9 50.5 48.2 47.7 47.3 52.7 0.0 52.7 17 53.1 63.5 47.6 63.0 61.7 57.7 55.5 52.6 51.0 48.7 48.2 47.8 53.1 0.0 53.1 18 51.8 58.0 47.4 57.4 57.0 55.9 54.9 52.2 50.8 48.5 48.1 47.6 51.8 0.0 51.8 19 51.0 58.8 45.4 58.2 57.7 56.1 54.8 51.0 49.4 46.5 46.1 45.5 51.0 5.0 56.0 20 51.0 58.4 44.8 57.8 57.3 55.8 54.9 51.5 49.3 46.3 45.6 45.0 51.0 5.0 56.0 21 49.4 56.6 43.9 56.2 55.7 54.6 53.5 49.8 47.5 44.8 44.4 44.1 49.4 5.0 54.4 22 50.2 61.0 44.5 59.8 58.7 55.8 53.0 49.8 47.5 45.3 45.0 44.6 50.2 10.0 60.2 23 46.1 52.0 42.4 51.5 50.8 49.4 48.9 46.9 45.0 43.2 42.9 42.6 46.1 10.0 56.1 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 49.4 56.6 43.9 56.2 55.7 54.6 53.5 49.8 47.5 44.8 44.4 44.1 Max 53.1 63.5 48.8 63.0 61.7 57.7 56.6 53.3 51.6 49.8 49.4 49.0

51.9 58.4 57.7 56.1 55.1 52.2 50.4 48.0 47.6 47.1
Min 40.4 46.6 37.7 46.2 45.7 44.1 43.4 40.6 39.1 38.1 38.0 37.8 Max 52.0 61.0 46.7 59.8 58.7 55.8 55.0 52.7 51.2 48.6 47.9 47.1

47.6 51.6 51.0 49.6 48.7 46.3 44.5 42.7 42.4 42.1
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L6 - Site S4-075 - 4742 Plumosa Drive Night
Day
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

55.4 51.9 47.6

42.842.140.442.544.952.050.952.252.953.050.751.152.152.252.351.752.753.151.851.051.049.450.246.1

35.0 40.0

45.0 50.0

55.0 60.0

65.0 70.0

75.0 80.0

85.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L6_H Page 658 of 1357 80 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 50.7 56.6 47.3 56.3 56.1 54.9 53.8 51.0 49.7 47.9 47.6 47.4 50.7 10.0 60.7 1 51.1 56.9 48.0 56.7 56.4 55.2 53.9 51.4 50.1 48.6 48.3 48.1 51.1 10.0 61.1 2 52.1 55.9 49.5 55.6 55.4 54.9 54.5 52.7 51.6 50.0 49.8 49.6 52.1 10.0 62.1 3 55.3 58.9 51.9 58.7 58.5 57.9 57.3 56.0 54.9 52.7 52.4 52.0 55.3 10.0 65.3 4 59.5 62.3 57.3 62.2 62.0 61.6 61.1 60.1 59.3 57.9 57.6 57.3 59.5 10.0 69.5 5 61.4 68.0 58.3 67.7 67.2 65.6 64.3 61.5 60.1 58.8 58.6 58.4 61.4 10.0 71.4 6 59.4 66.6 56.3 66.1 65.5 63.7 62.4 59.3 58.0 56.9 56.7 56.4 59.4 10.0 69.4 7 59.0 69.9 52.5 69.2 68.4 65.6 63.4 57.6 55.0 53.1 52.8 52.6 59.0 0.0 59.0 8 57.9 66.4 52.0 66.1 65.7 63.9 62.3 57.7 54.8 52.7 52.4 52.1 57.9 0.0 57.9 9 58.5 68.0 51.6 67.2 66.6 64.7 63.2 58.3 55.1 52.5 52.1 51.7 58.5 0.0 58.5 10 59.9 69.0 51.5 68.6 68.1 66.6 65.1 59.7 55.2 52.2 51.9 51.6 59.9 0.0 59.9 11 59.5 81.7 52.2 81.1 80.0 78.8 77.5 65.9 56.8 53.0 52.6 52.3 59.5 0.0 59.5 12 60.7 70.0 52.4 69.6 68.9 67.1 65.6 60.8 56.6 53.2 52.8 52.5 60.7 0.0 60.7 13 59.7 68.2 52.7 67.9 67.4 65.8 64.4 60.0 56.5 53.5 53.2 52.9 59.7 0.0 59.7 14 60.2 69.5 52.6 69.2 68.7 66.8 64.9 59.9 56.2 53.2 52.9 52.6 60.2 0.0 60.2 15 59.7 69.1 52.2 68.6 68.0 66.0 64.2 59.6 55.9 53.1 52.7 52.3 59.7 0.0 59.7 16 59.7 69.7 51.9 69.3 68.6 66.6 64.8 58.7 54.9 52.5 52.2 52.0 59.7 0.0 59.7 17 58.8 67.6 53.0 67.2 66.6 64.6 63.3 58.8 55.5 53.6 53.3 53.1 58.8 0.0 58.8 18 57.8 66.0 52.5 65.8 65.4 63.7 62.1 57.5 54.8 53.1 52.9 52.6 57.8 0.0 57.8 19 59.0 67.2 53.7 66.9 66.4 64.5 63.2 59.1 56.4 54.3 54.0 53.8 59.0 5.0 64.0 20 56.7 64.7 52.3 64.4 64.0 62.2 60.6 56.7 54.5 52.8 52.6 52.4 56.7 5.0 61.7 21 56.5 63.8 51.0 63.6 63.3 62.1 60.9 56.9 53.7 51.5 51.3 51.1 56.5 5.0 61.5 22 54.1 62.3 50.4 61.9 61.2 59.1 57.4 53.7 52.4 50.9 50.7 50.5 54.1 10.0 64.1 23 53.6 61.7 49.3 61.6 61.3 59.1 56.9 53.2 51.7 49.9 49.6 49.4 53.6 10.0 63.6 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 56.5 63.8 51.0 63.6 63.3 62.1 60.6 56.7 53.7 51.5 51.3 51.1 Max 60.7 81.7 53.7 81.1 80.0 78.8 77.5 65.9 56.8 54.3 54.0 53.8

59.1 68.3 67.7 65.9 64.4 59.1 55.5 52.9 52.6 52.4
Min 50.7 55.9 47.3 55.6 55.4 54.9 53.8 51.0 49.7 47.9 47.6 47.4 Max 61.4 68.0 58.3 67.7 67.2 65.6 64.3 61.5 60.1 58.8 58.6 58.4

56.9 60.8 60.4 59.1 57.9 55.4 54.2 52.6 52.4 52.1
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

64.0 59.1 56.9
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L7 - Site S6-015 - 22722 Old Canal Road Night
Day

50.751.152.1

55.3 59.5

61.4 59.4

59.0 57.9

58.5 59.9

59.5 60.7

59.7 60.2

59.7 59.7

58.8 57.8

59.0 56.7

56.5 54.1

53.6 35.0

40.0 45.0

50.0 55.0

60.0 65.0

70.0 75.0

80.0 85.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L7_O Page 659 of 1357 81 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 53.0 65.3 44.1 64.9 64.1 60.9 58.0 47.7 45.5 44.5 44.4 44.2 53.0 10.0 63.0 1 54.0 67.1 46.1 66.6 65.6 60.9 56.7 49.7 47.3 46.4 46.3 46.2 54.0 10.0 64.0 2 50.1 55.9 48.4 55.6 55.1 53.2 51.9 50.0 49.3 48.7 48.6 48.5 50.1 10.0 60.1 3 56.6 69.5 50.0 69.0 67.8 63.6 59.7 51.8 50.8 50.3 50.2 50.1 56.6 10.0 66.6 4 60.4 73.7 48.1 73.2 71.9 67.5 64.7 56.3 50.0 48.4 48.3 48.1 60.4 10.0 70.4 5 61.7 75.1 50.0 74.3 72.9 69.5 66.7 55.9 52.3 50.8 50.5 50.1 61.7 10.0 71.7 6 66.1 78.8 51.5 78.2 77.2 74.0 71.6 61.7 54.9 52.1 51.9 51.6 66.1 10.0 76.1 7 70.9 81.9 53.3 81.3 80.3 78.1 76.4 70.2 63.2 54.8 54.0 53.4 70.9 0.0 70.9 8 69.2 80.9 49.1 80.3 79.3 76.4 74.6 68.1 59.9 50.5 49.8 49.3 69.2 0.0 69.2 9 65.8 77.9 44.8 77.2 76.0 73.3 71.4 64.2 56.4 46.2 45.5 45.0 65.8 0.0 65.8 10 65.4 77.1 43.2 76.6 75.6 73.0 71.2 63.4 55.1 45.8 44.5 43.5 65.4 0.0 65.4 11 64.9 77.0 44.9 76.5 75.4 72.6 70.4 62.4 55.0 47.2 46.2 45.3 64.9 0.0 64.9 12 65.1 77.3 44.3 76.7 75.6 72.7 70.7 62.9 55.2 46.7 45.6 44.6 65.1 0.0 65.1 13 65.2 77.4 44.0 76.8 75.6 72.5 70.3 63.9 54.9 46.5 45.5 44.4 65.2 0.0 65.2 14 65.3 77.3 42.4 76.7 75.5 72.6 70.6 64.4 55.7 44.4 43.5 42.6 65.3 0.0 65.3 15 67.4 81.0 43.9 79.9 78.3 74.6 72.1 64.7 57.0 46.3 45.0 44.1 67.4 0.0 67.4 16 64.8 76.3 40.3 75.8 74.7 72.3 70.6 63.4 54.4 42.4 41.2 40.4 64.8 0.0 64.8 17 65.0 75.9 41.6 75.4 74.5 72.3 70.6 64.6 56.3 44.0 42.9 41.8 65.0 0.0 65.0 18 64.0 75.4 39.6 74.9 74.0 71.5 69.6 62.8 54.8 42.5 40.9 39.9 64.0 0.0 64.0 19 62.4 73.9 39.8 73.4 72.5 70.0 68.3 60.9 51.8 41.6 40.9 40.1 62.4 5.0 67.4 20 64.0 77.1 41.0 76.5 75.3 71.4 68.7 60.3 51.0 41.8 41.4 41.2 64.0 5.0 69.0 21 60.7 73.1 42.1 72.7 71.9 68.7 65.9 57.4 47.9 42.7 42.5 42.2 60.7 5.0 65.7 22 59.4 71.3 47.7 70.9 70.2 67.2 64.3 56.7 50.6 48.3 48.1 47.8 59.4 10.0 69.4 23 57.1 69.8 48.3 69.3 68.3 64.7 61.5 52.3 49.8 48.8 48.6 48.4 57.1 10.0 67.1 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 60.7 73.1 39.6 72.7 71.9 68.7 65.9 57.4 47.9 41.6 40.9 39.9 Max 70.9 81.9 53.3 81.3 80.3 78.1 76.4 70.2 63.2 54.8 54.0 53.4

66.0 76.7 75.6 72.8 70.8 63.6 55.2 45.6 44.6 43.8
Min 50.1 55.9 44.1 55.6 55.1 53.2 51.9 47.7 45.5 44.5 44.4 44.2 Max 66.1 78.8 51.5 78.2 77.2 74.0 71.6 61.7 54.9 52.1 51.9 51.6

60.0 69.1 68.1 64.6 61.7 53.6 50.1 48.7 48.5 48.3
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

68.3 66.0 60.0
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L8 - Site S5-008 - Vacant Parcel on Fairmont Boulevard Night
Day

53.0 54.0

50.1 56.6

60.4 61.7

66.1 70.9

69.2 65.8

65.4 64.9

65.1 65.2

65.3 67.4

64.8 65.0

64.0 62.4

64.0 60.7

59.4 57.1

35.0 40.0

45.0 50.0

55.0 60.0

65.0 70.0

75.0 80.0

85.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L8_Y Page 660 of 1357 82 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 43.8 50.3 41.0 49.8 49.2 47.5 46.4 44.2 42.6 41.5 41.3 41.1 43.8 10.0 53.8 1 41.9 45.9 40.4 45.6 45.3 44.2 43.6 42.1 41.4 40.8 40.6 40.5 41.9 10.0 51.9 2 41.6 46.2 40.0 45.8 45.4 44.3 43.6 41.8 40.9 40.3 40.2 40.1 41.6 10.0 51.6 3 42.6 46.3 41.1 46.0 45.6 44.6 44.0 43.0 42.2 41.5 41.3 41.2 42.6 10.0 52.6 4 45.6 49.7 44.0 49.5 49.1 48.0 47.4 45.7 45.1 44.4 44.2 44.1 45.6 10.0 55.6 5 49.5 55.8 46.8 55.4 54.8 53.0 52.0 49.7 48.5 47.4 47.2 46.9 49.5 10.0 59.5 6 52.5 58.2 49.2 57.9 57.4 56.3 55.3 53.1 51.4 49.8 49.6 49.3 52.5 10.0 62.5 7 59.8 63.6 54.7 63.4 63.1 62.4 62.0 60.9 59.5 56.6 55.7 54.9 59.8 0.0 59.8 8 60.8 84.8 65.4 84.4 83.8 82.9 82.2 77.5 75.1 68.4 66.8 65.7 60.8 0.0 60.8 9 52.4 59.0 47.7 58.5 57.9 56.6 55.8 53.0 50.9 48.6 48.2 47.8 52.4 0.0 52.4 10 54.1 63.8 45.9 63.4 63.0 61.4 58.2 53.7 50.1 47.1 46.6 46.1 54.1 0.0 54.1 11 52.2 58.4 47.1 58.0 57.6 56.5 55.8 52.9 50.7 48.3 47.8 47.3 52.2 0.0 52.2 12 56.0 63.2 47.6 62.7 62.2 61.1 60.4 57.2 53.3 48.9 48.3 47.7 56.0 0.0 56.0 13 51.9 60.4 46.2 59.4 58.4 56.6 55.5 52.4 50.3 47.4 47.0 46.4 51.9 0.0 51.9 14 53.5 59.4 50.0 58.8 58.2 57.1 56.5 54.3 52.4 50.7 50.4 50.1 53.5 0.0 53.5 15 54.0 61.6 48.4 61.2 60.8 59.6 58.6 54.0 51.6 49.5 49.0 48.5 54.0 0.0 54.0 16 49.7 55.8 45.5 55.2 54.8 53.6 52.7 50.6 48.6 46.4 46.0 45.7 49.7 0.0 49.7 17 49.5 56.5 45.0 56.1 55.5 53.8 52.8 50.0 48.1 45.9 45.6 45.2 49.5 0.0 49.5 18 54.7 64.0 46.9 63.7 63.2 61.4 59.6 52.2 50.5 48.1 47.7 47.1 54.7 0.0 54.7 19 55.2 66.0 47.3 65.5 64.2 59.7 59.2 54.1 51.6 48.9 48.2 47.6 55.2 5.0 60.2 20 51.8 59.7 46.5 59.0 58.2 56.1 54.7 52.2 50.6 47.9 47.4 46.8 51.8 5.0 56.8 21 49.1 56.1 44.1 55.6 55.0 53.6 52.7 50.4 47.0 44.9 44.6 44.2 49.1 5.0 54.1 22 48.4 56.4 43.4 55.9 55.3 53.2 51.9 48.8 46.1 44.1 43.8 43.5 48.4 10.0 58.4 23 48.3 54.6 44.1 54.2 53.6 52.4 51.8 49.1 46.5 44.5 44.4 44.2 48.3 10.0 58.3 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 49.1 55.8 44.1 55.2 54.8 53.6 52.7 50.0 47.0 44.9 44.6 44.2 Max 60.8 84.8 65.4 84.4 83.8 82.9 82.2 77.5 75.1 68.4 66.8 65.7

55.1 61.7 61.0 59.5 58.4 55.0 52.7 49.8 49.3 48.7
Min 41.6 45.9 40.0 45.6 45.3 44.2 43.6 41.8 40.9 40.3 40.2 40.1 Max 52.5 58.2 49.2 57.9 57.4 56.3 55.3 53.1 51.4 49.8 49.6 49.3

47.6 51.1 50.6 49.3 48.4 46.4 45.0 43.8 43.6 43.4
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

56.7 55.1 47.6
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L9 - Site S3-103 - Friend Church Overflow Parking Night
Day

43.841.941.642.645.649.552.5

59.8 60.8

52.4 54.1

52.2 56.0

51.9 53.5

54.0 49.749.5

54.7 55.2

51.849.148.448.3

35.0 40.0

45.0 50.0

55.0 60.0

65.0 70.0

75.0 80.0

85.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L9_V Page 661 of 1357 83 Date: Location: Meter: Piccolo II JN: 15459
Project: Yorba Linda Housing and General Plan Source: Analyst: A. Khan Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% L eq Adj. Adj. L eq 0 47.2 49.3 46.4 49.1 48.9 48.6 48.3 47.5 47.0 46.6 46.5 46.5 47.2 10.0 57.2 1 47.1 48.5 46.4 48.4 48.2 48.0 47.8 47.3 46.9 46.6 46.6 46.5 47.1 10.0 57.1 2 47.2 49.1 46.5 48.9 48.8 48.3 48.0 47.4 47.0 46.6 46.6 46.5 47.2 10.0 57.2 3 47.6 48.8 46.9 48.7 48.7 48.4 48.3 47.8 47.4 47.1 47.0 46.9 47.6 10.0 57.6 4 50.0 56.8 48.2 56.3 55.3 53.6 51.7 49.6 49.1 48.5 48.4 48.3 50.0 10.0 60.0 5 58.2 63.4 54.0 63.0 62.7 61.8 61.0 58.8 57.6 55.3 55.0 54.5 58.2 10.0 68.2 6 54.3 60.8 52.0 60.3 59.8 58.1 56.4 54.1 53.4 52.5 52.3 52.1 54.3 10.0 64.3 7 58.4 65.3 54.3 64.5 64.0 62.3 61.3 58.8 57.3 55.3 54.9 54.5 58.4 0.0 58.4 8 56.6 65.8 50.5 65.5 65.0 63.0 61.2 56.0 52.9 51.1 50.8 50.6 56.6 0.0 56.6 9 61.5 70.1 53.9 69.1 68.4 66.2 65.0 62.1 59.7 56.1 55.3 54.3 61.5 0.0 61.5 10 59.6 69.4 51.9 68.4 67.5 65.0 63.6 59.5 56.9 53.7 53.1 52.3 59.6 0.0 59.6 11 56.4 64.9 50.8 64.0 63.4 62.1 60.8 56.2 54.4 52.0 51.6 51.0 56.4 0.0 56.4 12 62.9 71.0 55.0 70.2 69.4 68.2 67.2 63.5 61.0 57.3 56.5 55.4 62.9 0.0 62.9 13 56.7 66.2 50.2 65.5 64.7 62.7 60.9 57.0 53.1 50.8 50.6 50.3 56.7 0.0 56.7 14 59.9 73.0 51.9 71.7 69.9 65.2 62.3 58.7 55.5 52.8 52.5 52.1 59.9 0.0 59.9 15 57.5 67.5 48.7 66.5 66.2 64.6 62.6 56.5 52.6 49.4 49.1 48.8 57.5 0.0 57.5 16 54.4 60.6 50.0 60.1 59.6 58.3 57.4 54.8 53.4 51.3 50.7 50.1 54.4 0.0 54.4 17 53.7 59.4 50.2 58.9 58.4 57.1 56.3 54.2 52.8 51.0 50.7 50.3 53.7 0.0 53.7 18 52.7 58.4 49.4 57.9 57.4 56.1 55.3 53.0 51.8 50.2 49.9 49.6 52.7 0.0 52.7 19 53.8 62.4 48.3 62.1 61.8 60.4 58.8 53.1 50.7 49.1 48.8 48.5 53.8 5.0 58.8 20 51.4 58.7 48.8 58.1 57.2 55.0 53.2 51.2 50.4 49.4 49.3 49.0 51.4 5.0 56.4 21 50.1 55.5 47.7 55.2 54.9 53.4 52.3 50.5 49.3 48.1 47.9 47.8 50.1 5.0 55.1 22 49.5 54.5 47.5 54.3 54.0 53.0 52.2 49.4 48.6 47.8 47.7 47.6 49.5 10.0 59.5 23 49.2 56.0 47.2 55.4 54.9 53.5 52.5 48.8 47.9 47.4 47.3 47.2 49.2 10.0 59.2 Timeframe Hour L eq L max L min L1% L2% L5% L8% L25% L50% L90% L95% L99% Min 50.1 55.5 47.7 55.2 54.9 53.4 52.3 50.5 49.3 48.1 47.9 47.8 Max 62.9 73.0 55.0 71.7 69.9 68.2 67.2 63.5 61.0 57.3 56.5 55.4

57.8 63.8 63.2 61.3 59.9 56.3 54.1 51.8 51.4 51.0
Min 47.1 48.5 46.4 48.4 48.2 48.0 47.8 47.3 46.9 46.6 46.5 46.5 Max 58.2 63.4 54.0 63.0 62.7 61.8 61.0 58.8 57.6 55.3 55.0 54.5

52.0 53.8 53.5 52.6 51.8 50.1 49.5 48.7 48.6 48.4
24-Hour Noise Level Measurement Summary
Hourly L eq dBA Readings (unadjusted)
L eq (dBA)
Night
Thursday, May 5, 2022 L10 - Site S4-204A - 19045 Yorba Linda Boulevard Night
Day
Day
Night
Energy Average
Energy Average Average:

Average:
24-Hour
CNEL
Daytime
(7am-10pm)
Nighttime
(10pm-7am)

60.1 57.8 52.0

47.247.147.247.650.0

58.2 54.3

58.4 56.6

61.5 59.6

56.4 62.9

56.7 59.9

57.5 54.4

53.7 52.7

53.8 51.450.149.549.2

35.0 40.0

45.0 50.0

55.0 60.0

65.0 70.0

75.0 80.0

85.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hourly Leq (dBA)
Hour Beginning
Z:\Shared\UcJobs\_15100-15500\_15400\15459\04_Noise\Fieldwork\Measurements\15459_L10_X Page 662 of 1357 84 Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
APPENDIX 8.1:

OFF-SITE TRAFFICNOISE LEVEL CONTOURS

85 Yorba Linda Housing Element Update Noise and Vibration Impact Analysis 15459-02 NA
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86 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Imperial Hwy. Road Name: Rose Dr. Scenario: Existing 14,417

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,325 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -1.19 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -18.42 2.96 -1.20 0.000 0.000

85.38 -22.38 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

70.8 69.2 67.5 61.4 70.0 70.6

64.3 64.7

63.2 56.8 55.3 63.7 64.0

63.7 54.6 55.9 64.2 64.4 Vehicle Noise: 72.4 71.1 68.0 63.2 71.8 72.2 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 53 113 244 526
57 122 262 565 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Prospect Av. Road Name: Imperial Hwy. Scenario: Existing 42,046

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,864 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

3.05 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.19 2.48 -1.20 0.000 0.000

86.40 -18.15 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

76.1 74.6 72.8 66.7 75.4 76.0

69.5 69.5

68.3 62.0 60.4 68.9 69.1

68.4 59.4 60.7 69.0 69.1 Vehicle Noise: 77.7 76.3 73.3 68.4 77.0 77.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 146 315 679 1,463
157 339 730 1,574 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Prospect Av. Road Name: Imperial Hwy. Scenario: Existing 39,992

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,675 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.83 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.41 2.48 -1.20 0.000 0.000

86.40 -18.36 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.9 74.3 72.6 66.5 75.1 75.7

69.3 69.3

68.1 61.8 60.2 68.7 68.9

68.2 59.2 60.4 68.8 68.9 Vehicle Noise: 77.4 76.1 73.1 68.2 76.8 77.3 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 141 305 657 1,415
152 328 706 1,522 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Imperial Hwy. Road Name: Bastanchury Rd. Scenario: Existing 15,308

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,407 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.93 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -18.16 2.96 -1.20 0.000 0.000

85.38 -22.12 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.0 69.5 67.7 61.7 70.3 70.9

64.6 65.0

63.5 57.1 55.5 64.0 64.2

63.9 54.9 56.2 64.5 64.6 Vehicle Noise: 72.7 71.3 68.3 63.5 72.0 72.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 55 118 254 547
59 127 273 588 Thursday, April 11, 2024

87 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Imperial Hwy. Road Name: Bastanchury Rd. Scenario: Existing 18,846

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,732 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.02 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.26 2.96 -1.20 0.000 0.000

85.38 -21.22 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.9 70.4 68.6 62.6 71.2 71.8

65.5 65.9

64.4 58.0 56.5 64.9 65.1

64.8 55.8 57.1 65.4 65.5 Vehicle Noise: 73.6 72.2 69.2 64.4 72.9 73.4 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 63 135 292 629
68 146 314 675 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: n/o Lemon Dr. Road Name: Imperial Hwy. Scenario: Existing 35,798

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,290 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.35 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.89 2.48 -1.20 0.000 0.000

86.40 -18.84 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.4 73.9 72.1 66.0 74.7 75.3

68.8 68.8

67.7 61.3 59.7 68.2 68.4

67.8 58.7 60.0 68.3 68.4 Vehicle Noise: 77.0 75.6 72.6 67.7 76.3 76.8 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 131 283 610 1,314
141 305 656 1,414 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Lemon Dr. Road Name: Imperial Hwy. Scenario: Existing 33,408

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,070 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.05 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -15.19 2.48 -1.20 0.000 0.000

86.40 -19.14 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.1 73.6 71.8 65.7 74.4 75.0

68.5 68.5

67.4 61.0 59.4 67.9 68.1

67.5 58.4 59.7 68.0 68.1 Vehicle Noise: 76.7 75.3 72.3 67.4 76.0 76.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 125 270 582 1,255
135 291 627 1,350 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: n/o Buena Vista Av. Road Name: Lakeview Av. Scenario: Existing 14,406

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,324 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -0.73 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -17.97 0.92 -1.20 0.000 0.000

84.25 -21.93 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.4 65.9 64.1 58.1 66.7 67.3

61.2 62.0

60.1 53.7 52.2 60.6 60.8

61.0 51.9 53.2 61.5 61.7 Vehicle Noise: 69.3 67.9 64.7 60.1 68.6 69.1 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 40 87 188 404
43 93 201 433 Thursday, April 11, 2024

88 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Buena Vista Av. Road Name: Lakeview Av. Scenario: Existing 12,516

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,150 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -1.34 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -18.58 0.92 -1.20 0.000 0.000

84.25 -22.54 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

66.8 65.3 63.5 57.5 66.1 66.7

60.6 61.4

59.4 53.1 51.5 60.0 60.2

60.4 51.3 52.6 60.9 61.1 Vehicle Noise: 68.7 67.3 64.1 59.5 68.0 68.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 37 79 171 368
39 85 183 395 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Buena Vista Av. Scenario: Existing 7,627

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 701 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -3.49 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -20.73 2.08 -1.20 0.000 0.000

84.25 -24.69 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

65.8 64.3 62.5 56.5 65.1 65.7

59.6 60.4

58.5 52.1 50.6 59.0 59.2

59.4 50.3 51.6 59.9 60.1 Vehicle Noise: 67.7 66.3 63.1 58.5 67.0 67.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 25 54 117 253
27 58 126 271 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Plumosa Dr. Road Name: Bastanchury Rd. Scenario: Existing 15,449

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,420 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.89 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -18.12 2.96 -1.20 0.000 0.000

85.38 -22.08 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.1 69.5 67.8 61.7 70.3 70.9

64.6 65.0

63.5 57.1 55.6 64.0 64.3

64.0 54.9 56.2 64.5 64.7 Vehicle Noise: 72.7 71.4 68.3 63.5 72.1 72.6 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 55 119 256 551
59 127 275 592 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Bastanchury Rd. Road Name: Lakeview Av. Scenario: Existing 8,941

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 822 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -2.80 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -20.04 2.08 -1.20 0.000 0.000

84.25 -24.00 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

66.5 65.0 63.2 57.2 65.8 66.4

60.3 61.1

59.2 52.8 51.2 59.7 59.9

60.1 51.0 52.3 60.6 60.8 Vehicle Noise: 68.4 67.0 63.8 59.2 67.7 68.2 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 28 61 130 281
30 65 140 301 Thursday, April 11, 2024

89 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Bastanchury Rd. Scenario: Existing 15,504

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,425 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.87 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -18.11 2.96 -1.20 0.000 0.000

85.38 -22.07 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.1 69.5 67.8 61.7 70.3 70.9

64.7 65.0

63.5 57.1 55.6 64.1 64.3

64.0 55.0 56.2 64.6 64.7 Vehicle Noise: 72.8 71.4 68.3 63.5 72.1 72.6 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 55 119 256 552
59 128 275 593 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Lakeview Av. Road Name: Bastanchury Rd. Scenario: Existing 18,676

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,716 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.06 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.30 2.96 -1.20 0.000 0.000

85.38 -21.26 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.9 70.3 68.6 62.5 71.1 71.7

65.5 65.9

64.3 58.0 56.4 64.9 65.1

64.8 55.8 57.0 65.4 65.5 Vehicle Noise: 73.6 72.2 69.1 64.4 72.9 73.4 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 62 135 290 625
67 145 312 671 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Yorba Linda Bl. Road Name: Lakeview Av. Scenario: Existing 13,287

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,221 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -1.08 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -18.32 0.92 -1.20 0.000 0.000

84.25 -22.28 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.1 65.6 63.8 57.7 66.4 67.0

60.8 61.7

59.7 53.3 51.8 60.3 60.5

60.6 51.6 52.8 61.2 61.3 Vehicle Noise: 68.9 67.5 64.4 59.7 68.3 68.7 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 38 82 178 383
41 88 191 411 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Yorba Linda Bl. Scenario: Existing 28,182

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 2,590 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

1.72 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -15.51 2.48 -1.20 0.000 0.000

85.38 -19.47 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

73.2 71.7 69.9 63.8 72.5 73.1

66.8 67.2

65.6 59.3 57.7 66.2 66.4

66.1 57.1 58.3 66.7 66.8 Vehicle Noise: 74.9 73.5 70.4 65.7 74.2 74.7 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 95 206 443 955
103 221 476 1,026 Thursday, April 11, 2024

90 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o La Palma Av. Road Name: Gypsum Canyon Rd. Scenario: Existing 12,309

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,131 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -1.42 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -18.65 2.08 -1.20 0.000 0.000

84.25 -22.61 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.9 66.4 64.6 58.6 67.2 67.8

61.7 62.5

60.5 54.2 52.6 61.1 61.3

61.5 52.4 53.7 62.0 62.1 Vehicle Noise: 69.7 68.4 65.2 60.5 69.1 69.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 35 75 161 348
37 80 173 373 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Gypsum Canyon Rd. Road Name: La Palma Av. Scenario: Existing 8,746

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 804 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -3.36 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -20.60 2.96 -1.20 0.000 0.000

85.38 -24.55 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

68.6 67.0 65.3 59.2 67.8 68.5

62.2 62.6

61.0 54.7 53.1 61.6 61.8

61.5 52.5 53.7 62.1 62.2 Vehicle Noise: 70.3 68.9 65.8 61.1 69.6 70.1 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 38 81 175 377
40 87 188 405 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Imperial Hwy. Road Name: Rose Dr. Scenario: E+P 15,183

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,395 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.96 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -18.20 2.96 -1.20 0.000 0.000

85.38 -22.16 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.0 69.4 67.7 61.6 70.2 70.9

64.6 65.0

63.4 57.1 55.5 64.0 64.2

63.9 54.9 56.1 64.5 64.6 Vehicle Noise: 72.7 71.3 68.2 63.5 72.0 72.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 54 117 253 544
58 126 271 585 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Prospect Av. Road Name: Imperial Hwy. Scenario: E+P 42,679

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,922 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

3.11 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.13 2.48 -1.20 0.000 0.000

86.40 -18.08 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

76.1 74.6 72.8 66.8 75.4 76.0

69.6 69.6

68.4 62.1 60.5 69.0 69.2

68.5 59.5 60.7 69.1 69.2 Vehicle Noise: 77.7 76.3 73.4 68.5 77.1 77.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 148 318 686 1,478
159 342 738 1,589 Thursday, April 11, 2024

91 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Prospect Av. Road Name: Imperial Hwy. Scenario: E+P 40,595

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,731 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.90 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.34 2.48 -1.20 0.000 0.000

86.40 -18.30 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.9 74.4 72.6 66.6 75.2 75.8

69.3 69.4

68.2 61.8 60.3 68.8 69.0

68.3 59.3 60.5 68.9 69.0 Vehicle Noise: 77.5 76.1 73.2 68.3 76.8 77.3 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 143 308 663 1,429
154 331 714 1,537 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Imperial Hwy. Road Name: Bastanchury Rd. Scenario: E+P 15,780

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,450 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.79 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -18.03 2.96 -1.20 0.000 0.000

85.38 -21.99 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.1 69.6 67.8 61.8 70.4 71.0

64.7 65.1

63.6 57.2 55.7 64.1 64.4

64.1 55.0 56.3 64.6 64.8 Vehicle Noise: 72.8 71.5 68.4 63.6 72.2 72.6 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 56 120 259 559
60 129 279 600 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Imperial Hwy. Road Name: Bastanchury Rd. Scenario: E+P 19,231

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,767 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance

0.06 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.17 2.96 -1.20 0.000 0.000

85.38 -21.13 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

72.0 70.5 68.7 62.6 71.3 71.9

65.6 66.0

64.4 58.1 56.5 65.0 65.2

64.9 55.9 57.1 65.5 65.6 Vehicle Noise: 73.7 72.3 69.3 64.5 73.0 73.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 64 137 296 637
68 148 318 685 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: n/o Lemon Dr. Road Name: Imperial Hwy. Scenario: E+P 36,338

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,339 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.41 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.82 2.48 -1.20 0.000 0.000

86.40 -18.78 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.4 73.9 72.2 66.1 74.7 75.3

68.9 68.9

67.7 61.4 59.8 68.3 68.5

67.8 58.8 60.0 68.4 68.5 Vehicle Noise: 77.0 75.6 72.7 67.8 76.4 76.8 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 133 286 616 1,327
143 308 663 1,428 Thursday, April 11, 2024

92 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Lemon Dr. Road Name: Imperial Hwy. Scenario: E+P 33,912

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,116 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.11 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -15.12 2.48 -1.20 0.000 0.000

86.40 -19.08 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.1 73.6 71.9 65.8 74.4 75.0

68.6 68.6

67.4 61.1 59.5 68.0 68.2

67.5 58.5 59.7 68.1 68.2 Vehicle Noise: 76.7 75.3 72.4 67.5 76.1 76.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 127 273 588 1,268
136 294 633 1,364 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: n/o Buena Vista Av. Road Name: Lakeview Av. Scenario: E+P 14,926

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,372 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -0.58 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -17.82 0.92 -1.20 0.000 0.000

84.25 -21.77 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.6 66.1 64.3 58.2 66.9 67.5

61.4 62.2

60.2 53.9 52.3 60.8 61.0

61.1 52.1 53.3 61.7 61.8 Vehicle Noise: 69.4 68.1 64.9 60.2 68.8 69.2 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 41 89 192 414
44 96 206 444 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Buena Vista Av. Road Name: Lakeview Av. Scenario: E+P 13,058

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,200 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -1.16 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -18.40 0.92 -1.20 0.000 0.000

84.25 -22.35 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.0 65.5 63.7 57.7 66.3 66.9

60.8 61.6

59.6 53.3 51.7 60.2 60.4

60.6 51.5 52.8 61.1 61.2 Vehicle Noise: 68.8 67.5 64.3 59.6 68.2 68.6 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 38 82 176 378
41 87 188 406 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Buena Vista Av. Scenario: E+P 8,317

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 764 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -3.12 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -20.36 2.08 -1.20 0.000 0.000

84.25 -24.31 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

66.2 64.7 62.9 56.9 65.5 66.1

60.0 60.8

58.8 52.5 50.9 59.4 59.6

59.7 50.7 52.0 60.3 60.4 Vehicle Noise: 68.0 66.7 63.5 58.8 67.4 67.8 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 27 58 124 268
29 62 133 287 Thursday, April 11, 2024

93 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Plumosa Dr. Road Name: Bastanchury Rd. Scenario: E+P 15,682

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,441 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.82 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -18.06 2.96 -1.20 0.000 0.000

85.38 -22.02 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.1 69.6 67.8 61.8 70.4 71.0

64.7 65.1

63.6 57.2 55.7 64.1 64.3

64.0 55.0 56.3 64.6 64.7 Vehicle Noise: 72.8 71.4 68.4 63.6 72.1 72.6 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 56 120 258 556
60 129 277 598 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Bastanchury Rd. Road Name: Lakeview Av. Scenario: E+P 9,713

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 893 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -2.44 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -19.68 2.08 -1.20 0.000 0.000

84.25 -23.64 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

66.9 65.3 63.6 57.5 66.1 66.8

60.7 61.5

59.5 53.1 51.6 60.1 60.3

60.4 51.4 52.6 61.0 61.1 Vehicle Noise: 68.7 67.3 64.2 59.5 68.1 68.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 30 64 138 297
32 69 148 318 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Bastanchury Rd. Scenario: E+P 16,867

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,550 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.51 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.74 2.96 -1.20 0.000 0.000

85.38 -21.70 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.4 69.9 68.1 62.1 70.7 71.3

65.0 65.4

63.9 57.5 56.0 64.4 64.7

64.4 55.3 56.6 64.9 65.1 Vehicle Noise: 73.1 71.7 68.7 63.9 72.5 72.9 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 58 126 271 584
63 135 291 627 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Lakeview Av. Road Name: Bastanchury Rd. Scenario: E+P 18,698

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,718 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.06 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.30 2.96 -1.20 0.000 0.000

85.38 -21.25 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.9 70.3 68.6 62.5 71.1 71.8

65.5 65.9

64.3 58.0 56.4 64.9 65.1

64.8 55.8 57.0 65.4 65.5 Vehicle Noise: 73.6 72.2 69.1 64.4 72.9 73.4 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 63 135 290 625
67 145 312 672 Thursday, April 11, 2024

94 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Yorba Linda Bl. Road Name: Lakeview Av. Scenario: E+P 13,766

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,265 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -0.93 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -18.17 0.92 -1.20 0.000 0.000

84.25 -22.12 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.2 65.7 63.9 57.9 66.5 67.1

61.0 61.8

59.9 53.5 52.0 60.4 60.6

60.8 51.7 53.0 61.3 61.5 Vehicle Noise: 69.1 67.7 64.5 59.9 68.4 68.9 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 39 84 182 392
42 91 195 420 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Yorba Linda Bl. Scenario: E+P 28,536

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 2,623 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

1.78 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -15.46 2.48 -1.20 0.000 0.000

85.38 -19.42 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

73.2 71.7 69.9 63.9 72.5 73.1

66.8 67.2

65.7 59.3 57.8 66.2 66.5

66.2 57.1 58.4 66.7 66.9 Vehicle Noise: 74.9 73.5 70.5 65.7 74.3 74.7 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 96 207 447 963
103 223 480 1,034 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o La Palma Av. Road Name: Gypsum Canyon Rd. Scenario: E+P 13,238

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,217 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -1.10 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -18.34 2.08 -1.20 0.000 0.000

84.25 -22.29 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

68.2 66.7 64.9 58.9 67.5 68.1

62.0 62.8

60.9 54.5 52.9 61.4 61.6

61.8 52.7 54.0 62.3 62.5 Vehicle Noise: 70.1 68.7 65.5 60.9 69.4 69.9 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 36 79 169 365
39 84 182 391 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Gypsum Canyon Rd. Road Name: La Palma Av. Scenario: E+P 9,563

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 879 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -2.97 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -20.21 2.96 -1.20 0.000 0.000

85.38 -24.16 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

69.0 67.4 65.7 59.6 68.2 68.8

62.6 62.9

61.4 55.1 53.5 62.0 62.2

61.9 52.9 54.1 62.5 62.6 Vehicle Noise: 70.7 69.3 66.2 61.5 70.0 70.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 40 86 186 400
43 93 199 430 Thursday, April 11, 2024

95 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Imperial Hwy. Road Name: Rose Dr. Scenario: HY (2045) 17,381

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,597 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.37 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.61 2.96 -1.20 0.000 0.000

85.38 -21.57 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.6 70.0 68.3 62.2 70.8 71.4

65.1 65.5

64.0 57.6 56.1 64.6 64.8

64.5 55.5 56.7 65.1 65.2 Vehicle Noise: 73.3 71.9 68.8 64.0 72.6 73.1 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 60 128 277 596
64 138 297 640 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Prospect Av. Road Name: Imperial Hwy. Scenario: HY (2045) 47,022

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 4,321 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

3.53 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -13.70 2.48 -1.20 0.000 0.000

86.40 -17.66 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

76.6 75.0 73.3 67.2 75.8 76.4

70.0 70.0

68.8 62.5 60.9 69.4 69.6

68.9 59.9 61.1 69.5 69.6 Vehicle Noise: 78.1 76.8 73.8 68.9 77.5 78.0 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 158 340 732 1,576
170 365 787 1,696 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Prospect Av. Road Name: Imperial Hwy. Scenario: HY (2045) 44,725

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 4,110 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

3.32 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -13.92 2.48 -1.20 0.000 0.000

86.40 -17.88 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

76.4 74.8 73.1 67.0 75.6 76.2

69.8 69.8

68.6 62.3 60.7 69.2 69.4

68.7 59.7 60.9 69.3 69.4 Vehicle Noise: 77.9 76.5 73.6 68.7 77.3 77.7 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 152 328 708 1,524
164 353 761 1,640 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Imperial Hwy. Road Name: Bastanchury Rd. Scenario: HY (2045) 17,120

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,573 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.44 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.68 2.96 -1.20 0.000 0.000

85.38 -21.63 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.5 70.0 68.2 62.1 70.8 71.4

65.1 65.5

63.9 57.6 56.0 64.5 64.7

64.4 55.4 56.6 65.0 65.1 Vehicle Noise: 73.2 71.8 68.8 64.0 72.5 73.0 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 59 127 274 590
63 137 294 634 Thursday, April 11, 2024

96 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Imperial Hwy. Road Name: Bastanchury Rd. Scenario: HY (2045) 22,406

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 2,059 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance

0.73 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -16.51 2.96 -1.20 0.000 0.000

85.38 -20.47 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

72.7 71.1 69.4 63.3 71.9 72.5

66.3 66.6

65.1 58.7 57.2 65.7 65.9

65.6 56.6 57.8 66.2 66.3 Vehicle Noise: 74.4 73.0 69.9 65.1 73.7 74.2 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 71 152 328 706
76 163 352 758 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: n/o Lemon Dr. Road Name: Imperial Hwy. Scenario: HY (2045) 40,035

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,679 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.84 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.40 2.48 -1.20 0.000 0.000

86.40 -18.36 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.9 74.3 72.6 66.5 75.1 75.7

69.3 69.3

68.1 61.8 60.2 68.7 68.9

68.2 59.2 60.5 68.8 68.9 Vehicle Noise: 77.5 76.1 73.1 68.2 76.8 77.3 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 142 305 657 1,416
152 328 707 1,523 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Lemon Dr. Road Name: Imperial Hwy. Scenario: HY (2045) 37,362

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,434 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.53 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.70 2.48 -1.20 0.000 0.000

86.40 -18.66 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.6 74.0 72.3 66.2 74.8 75.4

69.0 69.0

67.8 61.5 59.9 68.4 68.6

67.9 58.9 60.2 68.5 68.6 Vehicle Noise: 77.2 75.8 72.8 67.9 76.5 77.0 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 135 291 628 1,352
145 313 675 1,455 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: n/o Buena Vista Av. Road Name: Lakeview Av. Scenario: HY (2045) 17,586

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,616 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance

0.13 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -17.10 0.92 -1.20 0.000 0.000

84.25 -21.06 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

68.3 66.8 65.0 58.9 67.6 68.2

62.1 62.9

60.9 54.6 53.0 61.5 61.7

61.8 52.8 54.1 62.4 62.5 Vehicle Noise: 70.1 68.8 65.6 60.9 69.5 69.9 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 46 99 214 461
49 107 230 495 Thursday, April 11, 2024

97 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Buena Vista Av. Road Name: Lakeview Av. Scenario: HY (2045) 14,418

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,325 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -0.73 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -17.97 0.92 -1.20 0.000 0.000

84.25 -21.92 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.4 65.9 64.1 58.1 66.7 67.3

61.2 62.0

60.1 53.7 52.2 60.6 60.8

61.0 51.9 53.2 61.6 61.7 Vehicle Noise: 69.3 67.9 64.8 60.1 68.6 69.1 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 40 87 188 404
43 93 201 434 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Buena Vista Av. Scenario: HY (2045) 8,390

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 771 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -3.08 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -20.32 2.08 -1.20 0.000 0.000

84.25 -24.27 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

66.2 64.7 62.9 56.9 65.5 66.1

60.0 60.8

58.9 52.5 51.0 59.4 59.7

59.8 50.8 52.0 60.4 60.5 Vehicle Noise: 68.1 66.7 63.6 58.9 67.4 67.9 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 27 58 125 269
29 62 134 289 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Plumosa Dr. Road Name: Bastanchury Rd. Scenario: HY (2045) 17,278

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,588 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.40 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.64 2.96 -1.20 0.000 0.000

85.38 -21.59 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.5 70.0 68.2 62.2 70.8 71.4

65.1 65.5

64.0 57.6 56.1 64.5 64.8

64.5 55.4 56.7 65.0 65.2 Vehicle Noise: 73.2 71.8 68.8 64.0 72.6 73.0 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 59 128 275 593
64 137 296 637 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Bastanchury Rd. Road Name: Lakeview Av. Scenario: HY (2045) 9,836

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 904 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -2.39 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -19.63 2.08 -1.20 0.000 0.000

84.25 -23.58 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

66.9 65.4 63.6 57.6 66.2 66.8

60.7 61.5

59.6 53.2 51.7 60.1 60.4

60.5 51.4 52.7 61.0 61.2 Vehicle Noise: 68.8 67.4 64.2 59.6 68.1 68.6 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 30 64 139 299
32 69 149 321 Thursday, April 11, 2024

98 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Bastanchury Rd. Scenario: HY (2045) 18,510

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,701 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.10 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.34 2.96 -1.20 0.000 0.000

85.38 -21.30 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.8 70.3 68.5 62.5 71.1 71.7

65.4 65.8

64.3 57.9 56.4 64.8 65.1

64.8 55.7 57.0 65.3 65.5 Vehicle Noise: 73.5 72.1 69.1 64.3 72.9 73.3 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 62 134 288 621
67 144 310 667 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Lakeview Av. Road Name: Bastanchury Rd. Scenario: HY (2045) 21,229

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,951 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance

0.49 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -16.74 2.96 -1.20 0.000 0.000

85.38 -20.70 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

72.4 70.9 69.1 63.1 71.7 72.3

66.0 66.4

64.9 58.5 57.0 65.4 65.7

65.4 56.3 57.6 65.9 66.1 Vehicle Noise: 74.1 72.7 69.7 64.9 73.5 73.9 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 68 147 316 681
73 158 339 731 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Yorba Linda Bl. Road Name: Lakeview Av. Scenario: HY (2045) 16,137

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,483 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -0.24 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -17.48 0.92 -1.20 0.000 0.000

84.25 -21.43 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.9 66.4 64.6 58.6 67.2 67.8

61.7 62.5

60.6 54.2 52.6 61.1 61.3

61.5 52.4 53.7 62.0 62.2 Vehicle Noise: 69.8 68.4 65.2 60.6 69.1 69.6 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 44 94 202 436
47 101 217 467 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Yorba Linda Bl. Scenario: HY (2045) 24,502

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 2,252 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

1.12 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -16.12 2.48 -1.20 0.000 0.000

85.38 -20.08 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

72.6 71.0 69.3 63.2 71.8 72.4

66.2 66.6

65.0 58.7 57.1 65.6 65.8

65.5 56.5 57.7 66.1 66.2 Vehicle Noise: 74.3 72.9 69.8 65.1 73.6 74.1 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 87 187 404 870
93 201 434 934 Thursday, April 11, 2024

99 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o La Palma Av. Road Name: Gypsum Canyon Rd. Scenario: HY (2045) 13,540

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,244 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -1.00 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -18.24 2.08 -1.20 0.000 0.000

84.25 -22.20 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

68.3 66.8 65.0 59.0 67.6 68.2

62.1 62.9

61.0 54.6 53.0 61.5 61.7

61.9 52.8 54.1 62.4 62.6 Vehicle Noise: 70.2 68.8 65.6 61.0 69.5 70.0 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 37 80 172 370
40 86 184 397 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Gypsum Canyon Rd. Road Name: La Palma Av. Scenario: HY (2045) 9,621

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 884 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -2.94 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -20.18 2.96 -1.20 0.000 0.000

85.38 -24.14 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

69.0 67.5 65.7 59.6 68.3 68.9

62.6 63.0

61.4 55.1 53.5 62.0 62.2

61.9 52.9 54.1 62.5 62.6 Vehicle Noise: 70.7 69.3 66.3 61.5 70.0 70.5 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 40 87 186 402
43 93 200 431 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Imperial Hwy. Road Name: Rose Dr. Scenario: HY+P (2045) 18,147

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,668 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.19 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.43 2.96 -1.20 0.000 0.000

85.38 -21.38 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.8 70.2 68.5 62.4 71.0 71.6

65.3 65.7

64.2 57.8 56.3 64.7 65.0

64.7 55.6 56.9 65.2 65.4 Vehicle Noise: 73.4 72.1 69.0 64.2 72.8 73.2 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 61 132 285 613
66 142 306 659 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Prospect Av. Road Name: Imperial Hwy. Scenario: HY+P (2045) 47,655

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 4,379 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

3.59 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -13.65 2.48 -1.20 0.000 0.000

86.40 -17.60 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

76.6 75.1 73.3 67.3 75.9 76.5

70.0 70.0

68.9 62.5 61.0 69.4 69.7

69.0 60.0 61.2 69.6 69.7 Vehicle Noise: 78.2 76.8 73.9 69.0 77.5 78.0 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 159 343 738 1,590
171 369 794 1,711 Thursday, April 11, 2024

100
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Prospect Av. Road Name: Imperial Hwy. Scenario: HY+P (2045) 45,328

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 4,166 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

3.37 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -13.86 2.48 -1.20 0.000 0.000

86.40 -17.82 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

76.4 74.9 73.1 67.1 75.7 76.3

69.8 69.8

68.7 62.3 60.8 69.2 69.5

68.8 59.7 61.0 69.3 69.5 Vehicle Noise: 78.0 76.6 73.6 68.8 77.3 77.8 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 154 331 714 1,538
165 356 768 1,655 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Imperial Hwy. Road Name: Bastanchury Rd. Scenario: HY+P (2045) 17,592

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,617 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.32 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.56 2.96 -1.20 0.000 0.000

85.38 -21.52 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.6 70.1 68.3 62.3 70.9 71.5

65.2 65.6

64.1 57.7 56.2 64.6 64.8

64.5 55.5 56.8 65.1 65.2 Vehicle Noise: 73.3 71.9 68.9 64.1 72.6 73.1 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 60 129 279 601
65 139 299 645 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Imperial Hwy. Road Name: Bastanchury Rd. Scenario: HY+P (2045) 22,791

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 2,094 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance

0.80 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -16.44 2.96 -1.20 0.000 0.000

85.38 -20.39 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

72.7 71.2 69.4 63.4 72.0 72.6

66.3 66.7

65.2 58.8 57.3 65.7 66.0

65.7 56.6 57.9 66.2 66.4 Vehicle Noise: 74.4 73.1 70.0 65.2 73.8 74.2 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 71 154 331 714
77 165 356 767 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: n/o Lemon Dr. Road Name: Imperial Hwy. Scenario: HY+P (2045) 40,574

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,729 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.89 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.35 2.48 -1.20 0.000 0.000

86.40 -18.30 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.9 74.4 72.6 66.6 75.2 75.8

69.3 69.3

68.2 61.8 60.3 68.7 69.0

68.3 59.3 60.5 68.9 69.0 Vehicle Noise: 77.5 76.1 73.2 68.3 76.8 77.3 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 143 308 663 1,429
154 331 713 1,537 Thursday, April 11, 2024

101
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Lemon Dr. Road Name: Imperial Hwy. Scenario: HY+P (2045) 37,865

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 3,480 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 55 mph Near/Far Lane Distance: 74 feet REMEL Traffic Flow Distance

2.59 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.45 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

82.40 -14.65 2.48 -1.20 0.000 0.000

86.40 -18.60 2.45 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 71.78
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

33.764

33.645

33.764 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

75.6 74.1 72.3 66.3 74.9 75.5

69.0 69.0

67.9 61.5 60.0 68.4 68.7

68.0 59.0 60.2 68.6 68.7 Vehicle Noise: 77.2 75.8 72.9 68.0 76.5 77.0 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 136 294 633 1,364
147 316 681 1,468 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: n/o Buena Vista Av. Road Name: Lakeview Av. Scenario: HY+P (2045) 18,106

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,664 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance

0.26 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -16.98 0.92 -1.20 0.000 0.000

84.25 -20.93 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

68.4 66.9 65.1 59.1 67.7 68.3

62.2 63.0

61.1 54.7 53.1 61.6 61.8

62.0 52.9 54.2 62.5 62.7 Vehicle Noise: 70.3 68.9 65.7 61.1 69.6 70.1 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 47 101 218 470
50 109 234 505 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Buena Vista Av. Road Name: Lakeview Av. Scenario: HY+P (2045) 14,960

9.19%

50.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,375 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 50.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 52 feet REMEL Traffic Flow Distance -0.57 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

0.91 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -17.81 0.92 -1.20 0.000 0.000

84.25 -21.76 0.91 -1.20 0.000 0.000
-4.84
-5.04
-5.43 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

42.814

42.720

42.814 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.6 66.1 64.3 58.2 66.9 67.5

61.4 62.2

60.2 53.9 52.3 60.8 61.0

61.1 52.1 53.4 61.7 61.8 Vehicle Noise: 69.4 68.1 64.9 60.2 68.8 69.2 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 41 89 192 414
44 96 206 444 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Buena Vista Av. Scenario: HY+P (2045)9,080

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 834 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -2.74 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -19.98 2.08 -1.20 0.000 0.000

84.25 -23.93 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

66.6 65.1 63.3 57.2 65.9 66.5

60.4 61.2

59.2 52.9 51.3 59.8 60.0

60.1 51.1 52.3 60.7 60.8 Vehicle Noise: 68.4 67.0 63.9 59.2 67.8 68.2 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 28 61 132 284
30 66 141 304 Thursday, April 11, 2024

102
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Plumosa Dr. Road Name: Bastanchury Rd. Scenario: HY+P (2045) 17,510

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,609 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance -0.34 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.58 2.96 -1.20 0.000 0.000

85.38 -21.54 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

71.6 70.1 68.3 62.2 70.9 71.5

65.2 65.6

64.0 57.7 56.1 64.6 64.8

64.5 55.5 56.7 65.1 65.2 Vehicle Noise: 73.3 71.9 68.9 64.1 72.6 73.1 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 60 129 278 599
64 139 299 643 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: s/o Bastanchury Rd. Road Name: Lakeview Av. Scenario: HY+P (2045) 10,607

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 975 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 45 mph Near/Far Lane Distance: 36 feet REMEL Traffic Flow Distance -2.06 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.06 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

79.45 -19.30 2.08 -1.20 0.000 0.000

84.25 -23.26 2.06 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 68.46
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

35.847

35.735

35.847 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

67.3 65.7 64.0 57.9 66.5 67.1

61.0 61.9

59.9 53.5 52.0 60.4 60.7

60.8 51.8 53.0 61.4 61.5 Vehicle Noise: 69.1 67.7 64.6 59.9 68.4 68.9 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 31 68 146 315
34 73 157 338 Thursday, April 11, 2024 FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: w/o Lakeview Av. Road Name: Bastanchury Rd. Scenario: HY+P (2045) 19,873

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,826 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance

0.21 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -17.03 2.96 -1.20 0.000 0.000

85.38 -20.99 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

72.1 70.6 68.8 62.8 71.4 72.0

65.7 66.1

64.6 58.2 56.7 65.1 65.4

65.1 56.0 57.3 65.6 65.8 Vehicle Noise: 73.8 72.5 69.4 64.6 73.2 73.6 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 65 140 302 651
70 151 325 700 Thursday, April 11, 2024
FHWA-RD-77-108 HIGHWAY NOISE PREDICTION MODEL SITE SPECIFIC INPUT DATA Project Name: Yorba Linda Housing Elem
Job Number: 15459 Road Segment: e/o Lakeview Av. Road Name: Bastanchury Rd. Scenario: HY+P (2045) 21,251

9.19%

40.0 NOISE MODEL INPUTS
Average Daily Traffic (Adt): Peak Hour Percentage: Peak Hour Volume: 1,953 vehicles Centerline Dist. to Barrier: Centerline Dist. to Observer: 40.0 Highway Data
feet
feet vehicles Road Elevation: 0.0 Road Grade: 0.0%
Pad Elevation: 0.0
Site Data
Site Conditions (Hard = 10, Soft = 15) Medium Trucks (2 Axles): 15 Heavy Trucks (3+ Axles): 15 Autos: 15 Vehicle Mix
feet
feet Lane Equivalent Distance (in feet) Barrier Height: 0.0 Observer Height (Above Pad): 5.0 feet feet Vehicle Speed: 50 mph Near/Far Lane Distance: 50 feet REMEL Traffic Flow Distance

0.50 VehicleType Day Evening Night Daily Medium Trucks: Heavy Trucks: Autos: 77.5% 12.9% 9.6% 97.42%

84.8% 4.9% 10.3% 1.84%

86.5% 2.7% 10.8% 0.74%

2.93 Finite Road-1.20
Left View: -90.0 Right View: 90.0
degrees degrees Barrier Atten
FHWA Noise Model Calculations Barrier Distance to Observer: 0.0 feet Barrier Type (0-Wall, 1-Berm): 0.0

0.000 0.000 Fresnel Berm Atten Medium Trucks: Heavy Trucks: Autos: VehicleType

81.00 -16.74 2.96 -1.20 0.000 0.000

85.38 -20.70 2.93 -1.20 0.000 0.000
-4.83
-5.08
-5.56 Medium Trucks: Heavy Trucks: Autos: 70.20
Noise Source Elevations (in feet) Medium Trucks: Heavy Trucks: Autos: 2.000

4.000

8.006

31.369

31.241

31.369 Grade Adjustment: 0.0
Unmitigated Noise Levels (without Topo and barrier attenuation) Medium Trucks: Heavy Trucks: Autos: VehicleType Leq Peak Hour Leq Day Leq Evening Leq Night Ldn CNEL

72.4 70.9 69.1 63.1 71.7 72.3

66.0 66.4

64.9 58.5 57.0 65.4 65.7

65.4 56.3 57.6 65.9 66.1 Vehicle Noise: 74.1 72.7 69.7 64.9 73.5 73.9 Centerline Distance to Noise Contour (in feet) CNEL: Ldn: 70 dBA 65 dBA 60 dBA 55 dBA 68 147 316 681
73 158 340 732 Thursday, April 11, 2024