Agenda packet, regular meeting — San Mateo City Council, January 12, 2026 (part 2 of 2)

1.0 1.6

2.5 0.5

1.1 2.0

0.5 1.2

2.1 3.8

1.3 2.1

3.4 1.1

1.0 0.9

1.5 1.4

1.2 1.6

1.5 1.5

1.4 1.6

1.7 0.6

0.8 1.1

1.2 2.1 3.6

2.4 3.7 1.4

2.6 4.2 1.5

1.3 2.2 3.4

1.2 1.9 2.8

1.0 1.6 2.4

2.3 1.4 0.9

1.6 2.3

2.2 2.3

2.3 1.7

1.7 1.5

1.6 2.6 3.6 3.2 2.1 2.5 3.5 3.4 2.3 1.1 1.5 1.1 1.0 1.2 1.6 2.5 3.5 3.4 2.3 1.7 1.5 1.7 1.1 1.3 1.5 1.6 1.8 1.9 1.7 1.4 1.7 1.9 0.9 1.2

1.9 2.5 2.4 1.6 2.5 1.8 1.3 1.0 0.9 1.0 1.4 1.9 2.6 2.5 1.9 1.5 1.4 0.8 0.9 1.0 1.4

0.5 0.6 0.8 1.0 1.3 1.6 1.6 1.3 1.3 1.2

1.5 1.4 1.1 0.9 0.8 0.9 1.3 1.1 1.1

0.7 1.0 1.5 1.9 2.1 2.3

0.8 1.2 1.6 2.0 2.2 2.3 2.2 2.1

0.7 1.2 1.6 1.9 2.2 2.3 2.3 2.2 2.1 2.1

0.6 1.1 1.7 2.0 2.2 2.2 2.2 2.1 2.1 2.2 2.1 2.1

2.1 2.0 1.9 1.9 1.9 2.0 2.0 1.8 1.8 2.0 2.1

2.1 1.9 1.8 1.7 1.7 1.8 1.7 1.6 1.6 1.8 2.5

1.5 2.4 2.4 2.2 2.0 1.8 1.7 1.6 1.6 1.5 1.5 1.5 1.6 1.9 2.8

1.4 2.4 2.4 2.2 2.0 1.8 1.6 1.5 1.5 1.4 1.4 1.4 1.6 2.0 3.1

1.6 2.4 2.3 2.2 2.0 1.8 1.6 1.5 1.4 1.4 1.4 1.5 1.7 2.2 3.2

1.7 2.3 2.3 2.2 2.0 1.7 1.6 1.5 1.4 1.5 1.5 1.6 1.9 2.5 3.2

1.7 2.1 2.2 2.1 1.9 1.7 1.5 1.5 1.5 1.5 1.5 1.6

1.6 2.0 2.2 2.1 1.9 1.7 1.5 1.5 1.5 1.5 1.6 1.5

1.6 2.0 2.2 2.1 1.9 1.7 1.5 1.5 1.5 1.5 1.6 1.4

1.7 2.2 2.3 2.1 1.9 1.7 1.5 1.5 1.5 1.5 1.6 1.4

1.5 2.3 2.2 2.1 1.9 1.7 1.5 1.5 1.5 1.5 1.5 1.4

1.2 2.3 2.2 2.1 1.9 1.7 1.5 1.5 1.5 1.5 1.5 1.5 1.8 2.5 2.9

1.3 2.3 2.2 2.1 1.9 1.7 1.6 1.5 1.5 1.5 1.4 1.4 1.6 2.3 2.9

1.4 2.1 2.2 2.0 1.9 1.8 1.7 1.6 1.6 1.5 1.4 1.4 1.5 2.1 2.9

1.4 1.9 2.0 2.0 1.9 1.9 1.9 1.9 1.8 1.6 1.5 1.4 1.4 1.9 2.4

1.2 1.6 1.8 1.9 2.0 2.1 2.1 2.0 1.9 1.8 1.6 1.4 1.4 1.6 1.8

0.9 1.2 1.6 1.8 2.0 2.2 2.2 2.2 2.1 2.0 1.7 1.4 1.3 1.3 1.3

0.9 1.0 1.0 1.2 1.4 1.5 1.5 1.5 1.4 1.4 1.3 1.2 1.1 1.1

1.5 1.4 1.3 1.4 1.6 1.7 1.7 1.7 1.7 1.6 1.5 1.5 1.7 1.8

2.1 1.6 1.5 1.4 1.4 1.5 1.5 1.5 1.5 1.4 1.5 1.7 2.0 2.5

2.7 1.9 1.6 1.4 1.2 1.2 1.3 1.3 1.2 1.2 1.4 1.8 2.4 3.5

3.1 2.2 1.7 1.3 1.1 1.0 1.0 1.0 1.0 1.0 1.3 1.8 2.6 4.0

3.4 2.4 1.6 1.1 0.9 0.8 0.8 0.8 0.8 0.8 1.1 1.8 2.6 3.6

4.7 3.1 1.9 1.2 0.9 0.8 1.1 1.1 1.0 1.0 1.2 1.9 2.4 3.3

4.9 3.4 2.4 1.9 1.6 1.3 1.7 1.7 1.7 1.6 1.7 2.0 1.8 2.3

4.2 3.3 2.9 2.6 2.3 1.8 2.4 2.4 2.5 2.4 2.1 2.0 1.5 1.5

3.6 2.8 3.1 3.6 3.3 2.3 2.8 3.1 3.6 3.3 2.5 2.0 1.2 2.6

3.0 2.4 3.0 4.0 3.8 2.5 2.9 3.4 4.2 3.8 2.7 1.9 1.0 2.2

3.3 3.5 3.3 2.9

2.3 2.0 2.0 2.5 2.9

1.5 0.7 1.0

3.9 3.6 3.2 2.4 2.2 2.7 3.4

4.1 4.1

5.2 4.2 3.8

5.5 5.1

1.6 2.2 3.2 3.8 3.6 3.2 3.3 4.0

1.1 0.8

3.9 3.6 2.6 3.1

4.1 3.5 3.8

2.9 2.9 3.0 2.9 2.8 2.2 2.1

1.4 2.2 2.0

1.8 1.0

1.5 1.1 1.8

1.9 2.1

1.7 1.11.0 1.41.0 0.8

0.7 BA3H
3 INDICATES LUMINAIRE AREA

OF COVERAGE

TYPICAL
B
BE1 BE1 BE1
1 1 1

NUMBERED SHEET NOTES

PROVIDE ADDITIVE ALTERNATE FOR STRING LIGHTS AT THE
"GROVE". SEE DETAIL 1/E7.10.

NOT USED.

SEE DETAIL 2/E7.10.

SEE DETAIL 3/E7.10.
1 2
3 4
110 LINDEN STREET | OAKLAND, CA | 94607
5 1 0 . 8 3 6 . 6 5 9 4 | s t u d i o b o n d y . c o m

CONSULTANT
STUDIO BONDY ARCHITECTURE OWNS ALL COPYRIGHTS AND OTHER INTELLECTUAL PROPERTY RIGHTS IN THIS WORK PRODUCT AND IT IS PROTECTED BY UNITED STATES COPYRIGHT LAWS AND INTERNATIONAL TREATY PROVISIONS. REFER TO THE PROJECT MANUAL FOR APPLICABLE USE RESTRICTIONS. ORIGINAL DRAWING IS 30" X 42". SCALE ENTITIES ACCORDINGLY IF REDUCED.

PROJECT NO.: 2423.00
2033 LA SALLE DRIVE
SAN MATEO, CA 94403
P: 650.345.8205 | E: careyschool.org

EARLY CHILDHOOD

CENTER FOR THE

CAREY SCHOOL

FOR REFERENCE ONLY

FINAL TO BE SUBMITTED

FOR BUILDING PERMIT

NOT FOR CONSTRUCTION

PLANNING

APPLICATION FOR A

NEW EARLY

CHILDHOOD CENTER

SPAR / SUP PLANNING

APPLICATION

02.14.2025

PLANNING APPLICATION FOR

A NEW EARLY CHILDHOOD
CENTER

05.09.2025

PLANNING APPLICATION FOR

A NEW EARLY CHILDHOOD
CENTER - REVISION 2

07.16.2025
A
B

SITE LIGHTING

PHOTOMETRIC
REPORT
E8.10
1 E8.10

SITE LIGHTING PHOTOMETRIC REPORT
SCALE: 1" 10'-0"
NORTH
LEGEND

LUMINAIRE CONTRIBUTING TO SITE LIGHTING PHOTOMETRIC

CALCULATION

LUMINAIRE AREA OF COVERAGE
242 of 409

27.60.180 QUALIFIED (Q) OVERLAY ZONING DISTRICTS.
(a) Q1 (Qualified Overlay District 1)—Limitations and Conditions. The following limitations and conditions shall pertain to the use of property zoned Q1:
(1) Location of Structures. Permanent structures or improvements, such as parking, landscaping or open space may be constructed south of the ramp connecting northbound Highway 101 and eastbound Highway 92 only when they are not required to fulfill zoning requirements of adjacent properties.
(2) Access. No additional curb cuts shall be permitted beyond those existing on the site as of February 1, 1987.
(3) Residential Use. Residential use is prohibited.
(4) Parking. Parking on this site, with the exception of the provisions of Section

27.60.100 may be used to fulfill parking requirements for adjacent parcels. (5) Height Limitation. No structure shall exceed the height of the adjacent elevated freeway as measured to the top of the freeway railing.
(6) Floor Area Ratio. The maximum allowed floor area ratio is 0.5. (b) Q2 (Qualified Overlay District 2)—Limitations and Conditions. The following limitations and conditions shall pertain to the use of property zoned Q2:
(1) Lagoon Access. Public access to and along Marina Lagoon shall be provided, improved and maintained consistent with the Shoreline Park Specific Plan and requirements of the Landscape Resources Division and Public Works Department. (2) Parking. Parking on this site may be used to fulfill parking requirements for adjacent parcels.
(3) Height Limitation. No structure shall exceed the height of the adjacent elevated freeway as measured to the top of the roadway railing.
(4) Recreational vehicle storage facilities may be allowed subject to the approval of a special use permit under the provisions of Section 27.64.267 of this title. (5) Floor Area Ratio. The maximum allowed floor area ratio is 1.0. (c) Q3 (Qualified Overlay District 3)—Limitations and Conditions. The following limitations and conditions shall pertain to the use of property zoned Q3:
243 of 409
(1) Required Yards. A landscaped 30-foot building setback and a 15-foot parking setback from the edge of the shoulder of Fashion Island Boulevard shall be provided. All landscaping shall be subject to the approval of the Landscape Resources Division. (2) Access. No curb cuts shall be permitted from Fashion Island Boulevard. (3) Parking. Parking on this site may be used to fulfill parking requirements for adjacent parcels.
(4) Height Limitation. No structure shall exceed the height of the adjacent elevated freeway as measured to the top of the roadway railing.
(5) Recreational vehicle storage facilities may be allowed subject to the approval of a special use permit under the provisions of Section 27.64.267 of this title. (6) Floor Area Ratio. The maximum allowed floor area ratio is 0.5. (d) Q4 (Qualified Overlay District 4)—Limitations and Conditions. The following limitations and conditions shall pertain to the use of property zoned Q4:
(1) Accessory Use. Parking of passenger automobiles shall be permitted only when accessory to abutting nonresidential uses.
(2) Parking. Parking on the site may be used to fulfill parking requirements for adjacent parcels.
(3) Height Limitation. No structure shall exceed the height of the adjacent elevated freeway as measured to the top of the roadway railing.
(4) Recreational vehicle storage facilities may be allowed subject to the approval of a special use permit under the provisions of Section 27.64.267 of this title. (5) Floor Area Ratio. The maximum allowed floor area ratio is 1.0. (e) Q5 (Qualified Overlay District 5)—Limitations and Conditions. The following limitations and conditions shall pertain to the use of property zoned Q5. Q5 is the portion of the Hillsdale Shopping Center on the east and west side of El Camino Real (i.e., Sub-Areas A, B, C and D). 244 of 409
(1) Projects which involve less than 75% demolition and/or expansion and/or redevelopment of structures (including parking structures) in Sub-Area A or Sub-Area B or Sub-Area C or Sub-Area D, and which require a Site Plan and Architectural Review (SPAR) as per Section 27.08.030, will be required to meet the following findings in addition to findings in Section 27.08.030(a)(1)—(5):
(A) The development facilitates the safe and efficient flow of traffic balanced with enhanced opportunities for public transit and a safe pedestrian environment along and across El Camino Real;
(B) The development is compatible with existing retail uses, provides increased density of development near transit nodes, and contributes to a mix of uses along the corridor;
(C) The development enhances the district's identity as a focal point along El Camino Real by providing high-quality architecture, landscaping and signage, and promoting pedestrian-oriented activity;
(D) The development enhances the streetscape with high-quality landscaping sidewalks, street furniture, signage, entry features, and in the case of Sub-Area A, B, and D, theme intersection improvements at 31st Avenue, and improved connections and amenities for transit riders; and (E) The development promotes a healthy, vibrant business environment and complements the existing businesses and uses along El Camino Real. 245 of 409
(2) When 75% or more demolition and/or expansion and/or redevelopment of structures (including parking structures) occurs in Sub-Area A, B, C or D, a comprehensive master plan for such sub-area(s) which is consistent with the El Camino Real Master Plan and Hillsdale Station Area Plan is required. The development will be required to meet the findings in Section 27.60.160(e)(1)(i)—(v) in addition to findings in Section 27.08.030(a)(1)— (5).
(f) Q6 (Qualified Overlay District 6)—Limitations and Conditions. The following limitations and conditions shall pertain to the use of the property zoned Q6:
(1) Uses. All uses in this district shall require a special use permit, as set forth in Chapter 27.74 of the Zoning Code.
(2) Development. Future development in this district shall substantially comply with the conceptual development plan submitted as part of Planning Application #01-154 and as subsequently approved by the City Council on March 3, 2003. (3) Floor Area Ratio. This district shall have a maximum floor area ratio of 0.37:1. For the purposes of this district to calculate floor area, the size of the site is 557,568 squarefeet. (g) Q7 (Qualified Overlay District 7)—Limitations and Conditions. The following limitations and conditions shall pertain to the use of the property zoned Q7:
(1) Uses. All uses in this district shall require a special use permit, as set forth in Chapter 27.74 of the Zoning Code.
(2) Development. Future development in this district shall substantially comply with the St. Matthew Parish Master Plan and Special Use Permit submitted as part of Planning Application #10-060 and as subsequently approved by the City Council on January 22, 2013.
(3) Floor Area Ratio. This district shall have a maximum floor area ratio of 0.31. For the purposes of this district to calculate floor area, the size of the site is 310,400 square feet. For purposes of this zoning district, FAR will be calculated per zoning plot and not per parcel.
(4) Parking. In conformance with the master plan, this district shall allow the establishment of 12 new parking spaces which backout directly onto Notre Dame Avenue.

This is in addition to the 21 existing spaces that backout onto Notre Dame Avenue. (h) Q8 (Qualified Overlay District 8)—Limitations and Conditions. The following limitations and conditions shall pertain to the use of the property zoned Q8:
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(1) Uses. All uses in this district shall require a special use permit, as set forth in Chapter 27.74 of the Zoning Code.
(2) Development. Future development in this district shall comply with the approved site plan and approved Special Use Permit as part of the Planning Application # PA2018-069 approved by the City of San Mateo.site plans and conditions of approval in all applicable Planning Applications. Development standards include allowance of awning up to nine (9) feet in height within the rear yard setback. (3) Floor Area Ratio. This district shall have a maximum floor area ratio of 0.39. (4) Parking. Off-site parking facilities shall not be located in excess of 1,000 feet from the project site. Uncovered parking may be allowed within the front and side setback areas.
(4)(5) Signage. Signage on the site shall be allowed in accordance with Title 25 of the San Mateo Municipal Code.
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DATA FORM
NAME:
2033 La Salle Drive, Zoning
Reclassification
PA :

PA-2025-012
ADDRESS:
2033 La Salle Drive
LAND AREA:
26,380 sq. ft. (0.6 acre)
EXISTING ZONING: R1-B
PROPOSED ZONING: R1-B/Q8
APN: 039-040-080
PROPOSED: MAXIMUM ALLOWED:

FLOOR AREA: R1-B Q8 Overlay
Existing (Total) 3,958 sq. ft. --- ---
Demolition (3,958 sq. ft.) --- ---
Proposed building and trash
enclosure area
enclosure area
6,034 sq. ft. --- ---
TOTAL: 6,034 sq. ft. 6,000 sq. ft. 10,288.2 sq. ft.

FLOOR AREA RATIO (F.A.R.): R1-B Q8 Overlay
Existing 0.15 0.21 0.39
Proposed 0.22 --- ---
BLDG. HEIGHT:

Plate line 15’-5” 24’-0”
Roof Peak 17’-7” 32’-0”
STORIES: 1 3
SETBACKS PROPOSED: MINIMUM REQUIRED:

Front 67’-3/4” 15’-0”
Left Side 15’-0” 5’-0”
Right Side 44’-8 ¼” 5’-0”
Rear (First Floor) 15’-0” 15’-0”
PARKING: MINIMUM REQUIRED:

On-Site 11 Spaces ---
Off-Site 15 Spaces 1---
TOTAL PARKING: 26 Spaces 23 Spaces

ON-SITE PARKING LOCATION
Uncovered parking is
proposed within the front
setback
Prohibited in the
front setback
Uncovered parking may
be allowed within the
front setback
OFF-SITE PARKING: Within 1,000 of the subject
site
On the same parcel
or within 200 feet
of the site
Within 1,000 of the
subject site
LOADING 1 1
BICYCLE PARKING:

Short Term 4 Spaces 4 Spaces (1/20 students)
Long Term 1 Spaces 1 Spaces (1/20 employees)
SIGN: In accordance with Title 25 of
the San Mateo Municipal
In accordance with Title 25 of the San Mateo
Municipal Code
248 of 409
Code
EMPLOYMENT/ENROLLMENT: PROPOSED:

Faculty 16 Employees ---
Students 75 Students ---
1 Off-site parking is provided at parking facilities on 1900-2000 Alameda de las Pulgas. 249 of 409

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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840

MEMORANDUM
To:

From:

Date:

Subject:

City of San Mateo
Mike Mowery, P.E.

Kimley-Horn and Associates, Inc.

November 11, 2025
Traffic and Parking Evaluation Memorandum for 2033 La Salle Drive The purpose of this memorandum is to describe the approach and findings of a Traffic Evaluation for the proposed project at 2033 La Salle Drive (Project) in the City of San Mateo (City). The memorandum provides the assumptions for project understanding, data collection, and methodology of the analysis.

Project Description
The Project site is adjacent to residential uses and The Carey School elementary campus, located on La Salle Drive. The City’s designation for the site is One Family Dwelling “B” (R1B). The Carey School is proposing to redevelop the existing single-family residence, and an attached dwelling unit (ADU) at 2033 La Salle Drive into an early childhood center that can accommodate up to 75 children and 16 staff members. It is anticipated that approximately 50% of children would carpool with a sibling that is a student at The Carey School. The proposed site plan is included as Attachment A.

The Carey School’s Parking and Traffic Plan (Attachment E) includes information, policies, and procedures relating to traffic and parking for both the proposed early childhood center and the existing school campus. The Parking and Traffic Plan outlines that Project’s child drop-off/pick-up will occur at one of the following locations, as shown in Figure 1, depending on time of day and carpool situation:
• Early care drop-off/extended care pick-up: Park in Project parking lot and walk-in • Peak Period drop-off (8:00-8:25 AM)/pick-up (3:00-3:25 PM): Either at o Staffed carline in Project parking lot or
o Sibling drop-off/pick-up in elementary school staffed carline on Alameda de las Pulgas (Grades 2, 3, 5) and La Salle Drive (Grades PS, K, 1, 4). Early childhood center students will be dropped off at the designated area for their oldest sibling. Staff will walk children from drop-off/pickup area to building.
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Figure 1: Student Loading Locations
The Parking and Traffic Plan provides detailed procedures for each of student loading locations. For the Project site during off-peak period, vehicles will park in one of the parking spaces and then walk the child into the care center. During peak period, vehicles cannot park and will follow the drop-off and pick-up procedure:
• From 20th Avenue, vehicles will follow one-way loop down La Salle Drive and complete full circle before entering Project driveway
• Staff will direct vehicles into designated loading spot and will supervise children entering/exiting the vehicle
• Vehicles will exit project site and head north towards 20th Avenue

TRIP GENERATION
The standard practice of starting an assessment of transportation related elements for new projects is to evaluate what the multi-modal transportation (vehicle, bike, and pedestrian) change may include. A trip generation analysis was conducted to determine the number of trips the Project would generate.

The trip generation was determined based on average rates from Institute of Transportation Engineer’s (ITE) publication, Trip Generation, 11th Edition.

Project Site
Parking Lot
Elementary
School Loading
Area
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Trip credits were taken to account for the existing single-family residence, and ADU to be demolished.

For the existing residential trips, data for ITE Land Use 220: Single Family Detached Housing was used.

For the proposed early childhood center, ITE Land Use 565: Day Care Center was used. Note Trip Generation does not provide trip generation data during the School PM for both the existing and the proposed land uses, therefore as a conservative approach the commute PM trip generation rates were used instead. Also, ITE Trip Generation Vehicle Time of Day Distribution tables reports that approximately 6.6% of daily residential trips (1 trip) and 4.3% of daily day care trips (13 trips) occur during the School PM peak hour of 2:00 and 3:00 PM.

For the proposed use, a carpool trip reduction was applied because approximately 50% of students of proposed childhood center have a sibling that attends the existing elementary school and would arrive in the same vehicle. As a conservative approach, this percentage was determined based on the lowest observed percentage in the 6 most recent school years of an existing off-site childhood center currently operated by the applicant, as shown in Figure 2. Note that the 6-year average is closer to 60%. The sibling carpool trips will utilize the existing Carey School drop off and pick up areas at Alameda de las Pulgas and La Salle and then walk to the Project.

Figure 2. Percentage of Sibling at Existing Childcare Facility 61%
79%
61% 61%
50% 50%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
2020-2021 2021-2022 2022-2023 2023-2024 2025-2025 2025-2026 Sibling at The Carey School Other
The 6-year average shows that 60% of daycare children are siblings to student(s) enrolled at The Carey School.
252 of 409

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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Table 1 presents the overall trip generation for the proposed project. The trips associated with the existing use were subtracted from the total since the homes will be removed. The proposed project will generate a net new 133 daily trips, 28 net new trips in the AM peak hour, 27 net new trips in the School PM peak hour, and 27 net new trips in the PM peak hour. 253 of 409

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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Table 1:Project Trip Generation
ITE Land Use Code Size Units Daily Rate
AM Peak School PM Peak PM Peak
Rate In% Out% Rate** In% Out% Rate In% Out%
210 Single-Family
Detached Housing Dwelling Unit(s) 9.43 0.70 25% 75% 0.94 63% 37% 0.94 63% 37% 565 Day Care Center Student(s) 4.09 0.78 53% 47% 0.79 47% 53% 0.79 47% 53% Scenario ITE Land
Use Code Land Use Size Units Daily Trips AM Peak School PM Peak PM Peak Total In Out Total In Out Total In Out
Existing
Residential 210 Single-Family Detached Housing 2
Dwelling
Unit(s) 19 1 0 1 2 1 1 2 1 1
Total Existing Trips 19 1 0 1 2 1 1 2 1 1
Proposed
Total 565 Day Care Center 75 Student(s) 307 59 31 28 59 28 31 59 28 31 Carpool Trip
Reduction 565 Day Care Center 38 Student(s) -155 -30 -16 -14 -30 -14 -16 -30 -14 -16 Total Proposed Trips 152 29 15 14 29 14 15 29 14 15
Total Net New Trips (Proposed – Existing) 133 28 15 13 27 13 14 27 13 14 Source: ITE Trip Generation, 11th Edition
*As a conservative approach, it was assumed that 50% of students will be siblings to a student(s) of the existing The Carey School (elementary). Note that the 6-year average is closer to 60%. The sibling carpool trips will utilize the existing Carey School loading areas at Alameda de las Pulgas and La Salle and then walk to the Project. **ITE Trip Generation does not provide rates for the School PM peak for residential or day care center land uses therefore the PM trip rates were used. 254 of 409

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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840

TRIP ASSIGNMENT
As shown in Table 1, it is anticipated that during the peak hours approximately 29 trips will utilize the staff car line in the Project parking lot and the remaining 30 trips will utilize the sibling loading areas on Alameda de Las Pulgas or La Salle Drive shown inFigure 1. It is assumed that 95% of net new trips will come from the west of W 20th Avenue and La Salle Dr, while the remaining 5% of trips will come from the east.

Level of Transportation Analysis
As of July 1, 2020, the State of California has fully adopted a change in the California Environmental Quality Act (CEQA) significant impact methodology for transportation impacts to use vehicle miles traveled (VMT) as opposed to level of service (LOS) via State Bill 743 (SB 743). To address this change, the City of San Mateo developed and adopted the Transportation Impact Analysis Guidelines (TIA Guidelines) to provide screening criteria for determination of the level of transportation analysis and requirements for a transportation analysis.

Transportation analysis may consist of analysis required by CEQA and/or supplemental non-CEQA Local Transportation Analysis (LTA). The City’s TIA Guidelines outline criteria for determining the level of transportation analysis for a given project.

CEQA Screening
A project may be exempt from performing CEQA analysis if the project meets at least one screening criteria based on:
• Small Project
• Affordable Housing
• Local-Serving Retail and Public Services
• High-Quality Transit Area (HQTA)
• Consistency with RTP/SCS
The Project is determined to be exempted from CEQA analysis as summarized in Table 2. This determination is made based on the Local-Serving Retail and Public Services screening criteria. Based on the current Project information given for this analysis, a presumption of less than significance can be made and no VMT analysis is required. Detailed evaluation for each criterion is discussed in the following sections.

Table 2: Project CEQA Screening
CEQA Land Use Screening Criteria Project Exempt?
Small Project No, Daily trips > 110
Affordable Housing N/A
Local-Serving Retail and Public Services Yes, 5,908 SF
High-Quality Transit Area (HQTA) No. Not in HQTA
Project Located in Low VMT Area No. Not in low VMT area Consistency with RTP/SCS N/A
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Small Project
Small projects are defined as projects that generate less than 110 daily vehicle trips. An average of 110 average daily trips roughly equates to:
• 10 single family residential units
• 11 multifamily residential units
• 11,000 square feet of office
As shown in Table 1, the Project generates a net new 133 daily trips, which is greater than the 110- vehicle trip threshold and does not satisfy this criterion.

Affordable Housing
Project components which consist of 100 percent deed restricted affordable housing may be exempt.

The project does not include any components that fit this description.

Local-service Retail and Public Services
Projects that are locally serving retail equal or less than 50,000 square feet may be exempt. The City’s guidelines determine local serving retail based on location, characteristics, and envision goods and services the retail development would provide. The goods and services provided would be something people would need on a regular basis and be close to where people live. Some examples in the City’s guidelines include groceries, medicines, restaurants, and fitness and beauty services.

Based on the City’s guidelines, the childcare service provided by the Project is considered as local serving since the Project is located in a residential area of the City and the provided service needed on a daily weekday basis. Since the Project is a local service less than 50,000 square, it may be screened out from further VMT analysis.

High-Quality Transit Area (HQTA)
Locations within high-quality transit area, and/or near Caltrain stations, may be screened out. Figure 3 illustrates the HQTA within the City, which does not include the Project vicinity, therefore the Project does not satisfy this screening criterion.

Projects Located in Low VMT Areas
Residential and employment projects within areas that generate VMT below adopted City thresholds can be screened out from further VMT analysis. The VMT per capita and VMT per employee are shown in the San Mateo Transportation Impact Guidelines. Figures in Attachment B of San Mateo Transportation Impact Guidelines show that existing VMT are higher than the City’s thresholds and therefore could not be screened out.
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Figure 3: High-Quality Transit Area (Source: San Mateo Transportation Impact Guidelines, June 2020) Project Site
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Local Transportation Analysis
A non-CEQA local transportation analysis (LTA) may be required to evaluate the effects of the development project on the circulation network in proximity of the project site. LTA for the project may include the following analysis and evaluations:
• Traffic operation analysis
• Site Review
o Site access and circulation
o Parking assessment

PROJECT TRAFFIC OPERATION
The Carey School’s Parking and Traffic Plan (Attachment E) includes information, policies, and procedures relating to traffic and parking for both the proposed early childhood center and the existing school campus. The plan is shared with parents and students each year with reminders sent out regularly.

The Parking and Traffic Plan outlines that Project’s child drop-off/pick-up will occur at one of three (3) student locations, shown in Figure 1, depending on time of day and carpool situation. For vehicles accessing the Project site during off-peak period, vehicles will park in one of the parking spaces and then walk the child into the care center. During peak period, vehicles cannot park and will follow the drop-off and pick-up procedure:
• From 20th Avenue, vehicles will follow one-way loop down La Salle Drive and complete full circle before entering Project driveway
• Staff will direct vehicles into designated loading spot and will supervise children entering/exiting the vehicle
• Vehicles will exit project site and head north towards 20th Avenue Carpool vehicles will utilize the sibling drop-off/pick-up in elementary school staffed carline on Alameda de las Pulgas (Grades 2, 3, 5) or La Salle Drive (Grades PS, K, 1, 4). Early childhood center students will be dropped off at the designated area for their oldest sibling. Staff will walk children from drop-off/pickup area to building.

TRAFFIC OPERATION ANALYSIS
Traffic operation analysis was conducted for the unsignalized intersection of W 20th Avenue and La Salle Drive during the AM, School PM, and commute PM peak hours. The traffic analysis utilized traffic counts that were collected on Thursday, September 4th, 2025 during the AM (7-9 AM), school PM (2-4 PM), and the commute PM peak (4-6 PM) peak periods when school (including the existing elementary campus) was in session. Raw counts are included in Attachment B. 258 of 409

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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Figure 4 shows the peak hour turning movement counts for the existing conditions as well as the projected volumes with the addition of the Project (existing plus project). The peak hours occurs at the following times:
• AM Peak: 7:45 – 8:45 AM
• School PM: 2:30 – 3:30 PM
• Commute PM: 5:00 – 6:00 PM
Figure 4: W 20th Avenue and La Salle Drive Peak Hour Volumes The intersection level of service (LOS) and queuing were conducted to determine the potential change in traffic operation at the study intersection. LOS for the intersection was determined using the Highway Capacity Manual 7
th Edition (HCM 7) methodology within Synchro 12 software. For side street stop control (SSSC) intersections, HCM methodology defines LOS as a function of the average control delay for the worst minor street movement/approach or major street left-turn. The results are presented below in Table 3. The analysis indicates the intersection performs at an acceptable LOS C or better for all peak periods. It is anticipated that the Project will increase delay by 1.6 second per vehicle or less.

Synchro outputs are included in Attachment C.

Table 3: W 20th Avenue and La Salle Drive LOS Summary
Time
Period
Existing Existing Plus Project
LOS Delay LOS Delay Variance
AM
Overall A 2.5 A 3.1 0.6
Worst Approach (NB) B 12.9 B 13.8 0.9
School PM
Overall A 1.7 A 2.2 0.5
Worst Approach (NB) B 14.0 C 15.5 1.5
Commute
PM
Overall A 0.5 A 0.8 0.3
Worst Approach (NB) B 14.4 C 16.0 1.6
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Queues were also determined using the Highway Capacity Manual 7th Edition (HCM 7) methodology within Synchro 12 software. Similar to LOS, HCM 7 methodology reports queue lengths for the worst minor street movement/approach or major street left-turn. HCM 7 outputs reports queues by the number of vehicles and were converted to feet assuming 25 feet per vehicle.

The results are presented below in Table 4. The analysis indicates the queue lengths were all at most one vehicle during all peak periods. It is anticipated that the Project will not increase any existing queues by more than one vehicle, or 25 feet. Synchro outputs are included in Attachment C.

Table 4: W 20th Avenue and La Salle Drive Queuing Summary Time
Period Approach
Queue Length
Existing Existing Plus Project Variance
# Vehicle Feet* # Vehicle Feet* # Vehicle Feet*
AM
NB 0.7 18 1.0 25 0.3 8
WB 0.0 - 0.0 - 0.0 -
School
PM
NB 0.6 15 0.9 23 0.3 8
WB 0.1 3 0.1 3 0.0 -
Commute
PM
NB 0.2 5 0.4 10 0.2 5
WB 0.0 - 0.0 - 0.0 -
*Assumes 25 feet per vehicle
Based on the results of the traffic analysis it was determined that the Project would result in minimal impact to existing operations.

PLAN REVIEW
Site Circulation
As discussed in the Project Description section and school’s Parking and Traffic Plan, childcare dropoff and pick-up operation will differ depending on time of day. During off-peak period, vehicles will park in one of the parking spaces and then walk the child into the care center. During peak periods, vehicles cannot park in the Project’s parking lot and drop-off/pick-up operations will occur at the staffed carline within the Project’s parking lot or sibling drop-off at the staffed carline for the adjacent elementary school on Alameda de las Pulgas. The drop-off and pickup activities will be grouped in distinct 15-minute schedules to best manage the safety and efficiency of these operations. The Carey School will monitor these activities and make adjustments for improvements if needed.

Student Loading Queue
A student loading queue analysis was conducted to determine if the proposed loading area for the early childhood center would be adequate during a 25-minute peak during the morning drop-off and afternoon pick-up periods. The queue for the existing elementary campus was not evaluated as the Project will not increase the number of vehicles for that site. The queuing analysis compared the arrival and departure rates for the loading queue.
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 During peak morning and afternoon peak periods, non-carpool students will utilize the staff carline within the Project parking lot. It is assumed that approximately 50 feet (2 vehicles) between the entry and exit drive aisles may be used for student loading activity and approximately 45 feet (2 vehicles) could queue in the entry throat before spilling onto La Salle Drive. This equates to overall vehicle storage of 4 vehicles, where 2 vehicles for loading activities and 2 vehicles for waiting.

As a conservative approach, the arrival rate assumed that all peak hour vehicles would arrive with in linear distribution within the 25-minute peak period. Note Trip Generation defines trip as a one directional movement, therefore the number of vehicles was the maximum between the inbound or outbound trips. For both peak periods, it is estimated the average arrival rate of 0.6 vehicles per minute (veh/min).

The departure rate was determined based on average drop-off and pick-up dwelling times and active loading queue storage. Based on engineering and professional judgment, conservative estimates for average drop-off and pick-up dwelling times of 4 minutes (240 seconds) were used in the analysis. The drop-off/pick-up time is the assumed amount of time it takes for a vehicle to enter a temporary curbside space and for children to safely exit or enter the car. For both peak periods, it is estimated the average departure rate of 0.5 veh/min.

The results of the student loading queues are summarized in Table 5. Since the arrival rate is greater than the departure rate, there will be an unserved rate of 0.1 veh/min which equates to approximately

2.5 vehicle queue (unserved rate multiplied by 25-minute peak period). The queue analysis calculation is included in Attachment D.

To minimize queues spillover, a sensitivity analysis was conducted to determine the average dwelling time which would result in two-vehicle queue, one-vehicle queue, or no queue in the entry throat. The results of the sensitivity analysis are presented in Table 6 where the average dwelling times ranged from 3.8 minute (230 seconds) for two-vehicle queue to 3.3 minutes (200 seconds) for no queue. As stated previously, The Carey School will monitor these activities and make adjustments for improvements if needed.

Table 5: Student Loading Queue Analysis Summary
Morning Drop-off
(8:00-8:25 AM)
Afternoon Pick-up
(3:00-3:25 PM)
Dwell Time (sec) 240 240
# vehicles during peak period* 15 15
Arrival Rate (veh/ min) 0.6 0.6
Departure Rate (veh /min) 0.5 0.5
Unserved Queue (veh) 2.5 2.5
*Assumed the maximum between inbound and outbound peak hour trips.

Table 6: Dwelling Time Sensitivity Analysis Summary
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Unserved Queue
(Vehicle)
Dwell time
(seconds)
2 230
1 210
0 200
Parking Assessment
The Project will provide 11 parking spaces on-site. In addition, The Carey School has a shared parking agreement where it leases a total of 45 parking spaces, where 15 spaces will be dedicated to the proposed early childhood center, from the buildings at 1900-2000 Alameda de las Pulgas. The parking lease term runs from March 1, 2025, through March 31, 2030, with options for extension.

For on-site parking, one (1) space will be dedicated to the Director and all remaining Staff will utilize the remote parking spaces at 1900-2000 Almeda de las Pulgas. The remaining ten (10) spaces will be utilized for parent drop-off and pick-up, outside of the staffed carline operations noted in the section above.

Parking requirements for the proposed Project are presented in Chapter 27.64.160 of San Mateo’s Municipal Code. For day nurseries, including preschools and nursery schools, the minimum parking required includes:
• 1 space for each employee.
• Designated spaces for loading and unloading children, where 1 space per 6 persons (or portion thereof) licensed at the facility with maximum of 3 spaces for up to 30 licensed persons, and thereafter 1 space per 10 licensed person.
o The loading/unloading spaces may be located on street frontage with appropriate permits for loadings zones.
o The overall requirement may be reduced by 1 space by the provision of a permanently assigned employee to assist children from the drop-off area to the facility.

Table 7 summarizes the parking requirement for the Project, which is 23 spaces. The combined total of on-site parking and remote parking equates to 26 spaces, which satisfies the City’s requirements. It should be noted that this analysis does not include spaces for the staffed carline on Alameda de las Pulgas or La Salle Drive, reflecting a conservative approach to the drop-off and pick-up operations. 262 of 409

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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Table 7: Project Parking Requirements Summary
Amount Parking Requirement # Parking
stalls
16 Staff 1 space per employee 16
75 Children
1 space per 6 persons with a maximum of 3 spaces
for 30 licensed persons, then 1 space per 10 licensed
persons
8 Reduction for permanent assigned employees to assist with loading -1 Minimum parking requirement 23
Proposed
Parking
On-Site 11
Off-Site 15
Total 26
Surplus (+) / Deficient (-) +3
Parking analysis also evaluated if the parking inventory for the building located at 1900-2000 Alameda de las Pulgas would remain sufficient after leasing 45 spaces to The Carey School. The 1900 Alameda Building is evaluated based on the R&D parking requirements noted in the City’s parking requirements.

This evaluation is based on the City’s record of improvements starting in year 2020 for Speculative Lab and Support Spaces completed for the 1900 Alameda building, under Building Permit BD-2020-275487 and subsequent improvement permits for all the leasable space. Based on the 1900 Alameda use as Laboratory and 1950 and 2000 Alameda uses as Office, the combined minimum parking requirement would result in 713 parking spaces. This parking space requirement is assuming a 100% occupancy of the buildings rather than reflective of a specific tenant occupancy percentage, which would be less than 100% due to hybrid schedules for many employers in the regions. The 1900-2000 Alameda buildings provide 801 parking spaces, inclusive of a 430-space parking structure and a 371-space surface lot.

The shared use of all parking spaces was documented as a Declaration of Covenants, Conditions and Restrictions (CC&R’s) recorded on June 6, 1984, as Instrument No 1984-061165 with the County of San Mateo.

In summary, the inventory of 801 parking spaces allows for a sufficient supply of the 713 required Office/R&D parking, as well as the 45 spaces leased to The Carey School, leaving a surplus of 43 spaces available. Table 8 summarizes the calculation of these results.

Table 8: 1900-2000 Alameda Parking Evaluation
Building Amount Parking
Requirement
# Parking
stalls
1900 Alameda 113,000 GSF R&D: 1 per 500 SF 226
1950-2000 Alameda 153,336 GSF Office: 1 per 315 SF 487
Total 713
Current Parking Inventory 801
Surplus (+) / Deficient (-) +88
Remaining surplus after 45-space lease to The Carey School +43 263 of 409

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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840

CONCLUSION
The following is a summary of the traffic and parking evaluation:

Project Description
• The Project site is located at 2033 La Salle Drive, which is adjacent to residential uses and The Carey School elementary campus.
• The Project is proposing to redevelop the existing single-family residence and an attached dwelling unit (ADU) into an early childhood center that can accommodate up to 75 children. It is anticipated that approximately 50% of children would carpool with a sibling that is a student at The Carey School.
• The proposed project will generate a net new 133 daily trips, 28 net new trips in the AM peak hour, 27 net new trips in the School PM peak hour, and 27 net new trips in the PM peak hour.

Vehicle Miles Traveled
• The Project is determined to be exempted from CEQA analysis based on the Local-Serving Retail and Public Services screening criteria.

Traffic Operation
• Level of service analysis found that the intersection of W 20th Avenue and La Salle Drive will operate at LOS C or better during the AM, School PM, and commute PM peak hours with the addition of Project traffic
• Queuing analysis found that the Project will not increase any existing queues by more than one vehicles or 25 feet.
• The results of the traffic analysis found that the Project would result in minimal impact to existing operations.

Plan Review
• Childcare drop-off and pick-up operation will differ depending on time of day. o During the Project’s peak hour, drop-off/pickup operations will occur at the staffed carline within the Project’s parking lot or sibling drop-off at the staffed carline for the adjacent elementary school on Alameda de las Pulgas.
o During non-peak times, vehicles may park in the Project parking lot and walk-in. o The Carey School will monitor these activities and make adjustments for improvements if needed.
• Student loading found that staff carline would need to have an average dwell time of less than 4 minutes to ensure that queues do not spill onto La Salle Drive during peak periods. • The combined total on-site parking and off-site parking equates to 26 spaces, which satisfies the City’s requirements of 23 spaces.
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840

ATTACHMENT
Attachment A – Site Plan
Attachment B – Traffic Counts
Attachment C – Synchro Reports
Attachment D – Student Loading Queue Worksheet
Attachment E – The Carey School’s Parking and Traffic Plan 265 of 409
kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Attachment A – Site Plan
266 of 409
FD
FD
FD
FD FD
FD
FD
VAN
ADA
VAN
ADA
59' - 11 3/8"
6' - 0"
5' - 6 1/32"
39' - 2 1/2"
34' - 7 1/2"
24' - 4 1/2"
MAIN BUILDING 5,895.3 SF

TRASH ENCLOSURE
103.7 SF
25' - 8 1/2" 31' - 5"
47' - 8" 9' - 5 1/2"
1' - 6"122' - 3 7/8"9' - 11 1/2"

LA SALLE DRIVE

FLOOR AREA CALCULATION
R1-B
7,076 SF (0.27 FAR)
5,895.3 SF
* Per San Mateo Municipal Code Section 27.18.060
** Per San Mateo Municipal Code Section 27.04.200(b)(2)(c), covered walkways have been excluded
*** See Sheet G0.01 PROJECT INFORMATION - ZONING SUMMARY for ALLOWABLE FLOOR AREA calculations
MAIN BUILDING GROSS AREA**

TRASH ENCLOSURE GROSS AREA

TOTAL PROPOSED FLOOR AREA

DISTRICT
103.7 SF
MAXIMUM ALLOWABLE FAR*
5,999 SF ***
MAXIMUM RESIDENTIAL USE FAR* 6,000 SF (0.22 FAR)

AS SHOWN
STUDIO BONDY ARCHITECTURE OWNS ALL COPYRIGHTS AND OTHER INTELLECTUAL PROPERTY RIGHTS IN THIS WORK PRODUCT AND IT IS PROTECTED BY UNITED STATES COPYRIGHT LAWS AND INTERNATIONAL TREATY PROVISIONS. REFER TO THE PROJECT MANUAL FOR APPLICABLE USE RESTRICTIONS. ORIGINAL DRAWING IS 30" X 42". SCALE ENTITIES ACCORDINGLY IF REDUCED. 110 LINDEN STREET | OAKLAND, CA | 94607
510.836.6594 | [email protected]
PROJECT NO.: NOT FOR CONSTRUCTION
2/12/2025 5:10:35 PM

FLOOR AREA DIAGRAM
A1.02

SPAR / SUP PLANNING

APPLICATION
2423.00
2033 LA SALLE DRIVE
SAN MATEO, CA 94403
P: 650.345.8205

EARLY CHILDHOOD

CENTER FOR THE

CAREY SCHOOL
TRUE
1/8" = 1'-0"
1 FLOOR AREA CALCULATION DIAGRAM

SPAR / SUP PLANNING

APPLICATION

02.14.2025
Attachment A
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kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Attachment B – Traffic Counts
268 of 409
National Data & Surveying Services
Intersection Turning Movement Count
Location: La Salle Dr & W 20th Ave
City: San Mateo Project ID:

Control: 1-Way Stop(NB) Date:

NS/EW Streets:
0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
7:00 AM 0 0 0 0 0 0 0 0 0 35 0 0 0 22 0 1 58
7:15 AM 0 0 1 0 0 0 0 0 0 18 1 0 0 18 0 0 38
7:30 AM 0 0 3 0 0 0 0 0 0 34 2 0 2 27 0 0 68
7:45 AM 7 0 2 0 1 0 0 0 0 32 7 0 5 39 0 1 94
8:00 AM 20 0 7 0 0 0 1 0 0 57 18 0 6 37 0 0 146
8:15 AM 5 0 0 0 0 0 0 0 0 42 2 0 1 43 1 0 94
8:30 AM 3 0 3 0 0 0 0 0 0 55 3 0 0 35 0 0 99
8:45 AM 1 0 0 0 0 0 0 0 0 57 1 0 0 31 0 0 90

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
TOTAL VOLUMES : 36 0 16 0 1 0 1 0 0 330 34 0 14 252 1 2 687 APPROACH %'s : 69.23% 0.00% 30.77% 0.00% 50.00% 0.00% 50.00% 0.00% 0.00% 90.66% 9.34% 0.00% 5.20% 93.68% 0.37% 0.74% PEAK HR : 7:45 AM 40 TOTAL
PEAK HR VOL : 35 0 12 0 1 0 1 0 0 186 30 0 12 154 1 1 433 PEAK HR FACTOR : 0.438 0.000 0.429 0.000 0.250 0.000 0.250 0.000 0.000 0.816 0.417 0.000 0.500 0.895 0.250 0.250 Headers NBL NBT NBR NBU SBL SBT SBR SBU EBL EBT EBR EBU WBL WBT WBR WBU 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
2:00 PM 1 0 0 0 0 0 0 0 0 43 3 0 0 33 0 0 80
2:15 PM 1 0 0 0 0 0 0 0 0 63 1 0 0 34 0 0 99
2:30 PM 1 0 2 0 0 0 0 0 0 55 8 1 3 115 0 1 186
2:45 PM 10 0 9 0 0 0 0 0 0 49 12 0 6 53 0 0 139
3:00 PM 9 0 12 0 0 0 0 0 0 43 14 0 2 39 0 0 119
3:15 PM 7 0 9 0 0 0 0 0 0 53 12 0 2 34 0 1 118
3:30 PM 2 0 1 0 0 0 0 0 0 75 4 0 1 49 0 0 132
3:45 PM 5 0 0 0 0 0 0 0 0 60 2 0 0 39 0 0 106

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
TOTAL VOLUMES : 36 0 33 0 0 0 0 0 0 441 56 1 14 396 0 2 979 APPROACH %'s : 52.17% 0.00% 47.83% 0.00% 0.00% 88.55% 11.24% 0.20% 3.40% 96.12% 0.00% 0.49% PEAK HR : 2:30 PM 12:00 AM TOTAL
PEAK HR VOL : 27 0 32 0 0 0 0 0 0 200 46 1 13 241 0 2 562 PEAK HR FACTOR : 0.675 0.000 0.667 0.000 0.000 0.000 0.000 0.000 0.000 0.909 0.821 0.250 0.542 0.524 0.000 0.500 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
4:00 PM 2 0 2 0 0 0 0 0 0 57 6 0 1 34 0 0 102
4:15 PM 2 0 1 0 0 0 1 0 0 56 1 0 0 29 0 0 90
4:30 PM 1 0 1 0 0 0 0 0 0 90 3 0 2 33 0 0 130
4:45 PM 3 0 1 0 0 0 0 0 0 99 5 1 1 51 0 0 161
5:00 PM 1 0 5 0 0 0 0 0 0 99 4 0 2 52 1 1 165
5:15 PM 2 0 2 0 1 0 0 0 1 105 7 0 1 69 0 0 188
5:30 PM 5 0 1 0 0 0 0 0 0 107 1 0 2 64 0 0 180
5:45 PM 1 0 3 0 0 1 0 0 0 144 3 0 0 48 0 0 200

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
TOTAL VOLUMES : 17 0 16 0 1 1 1 0 1 757 30 1 9 380 1 1 1216 APPROACH %'s : 51.52% 0.00% 48.48% 0.00% 33.33% 33.33% 33.33% 0.00% 0.13% 95.94% 3.80% 0.13% 2.30% 97.19% 0.26% 0.26% PEAK HR : 5:00 PM 12:00 AM TOTAL
PEAK HR VOL : 9 0 11 0 1 1 0 0 1 455 15 0 5 233 1 1 733 PEAK HR FACTOR : 0.450 0.000 0.550 0.000 0.250 0.250 0.000 0.000 0.250 0.790 0.536 0.000 0.625 0.844 0.250 0.250 25-080286-001
9/4/2025
05:00 PM - 06:00 PM

0.916 0.833 0.500 0.801 0.857

0.755 0.702 0.950 0.538
02:30 PM - 03:30 PM
07:45 AM - 08:45 AM

0.741
PM

NORTHBOUND SOUTHBOUND EASTBOUND WESTBOUND
NOON

NORTHBOUND SOUTHBOUND EASTBOUND WESTBOUND

0.435 0.500 0.720 0.933
AM

NORTHBOUND SOUTHBOUND EASTBOUND WESTBOUND
Data - Total
La Salle Dr La Salle Dr W 20th Ave W 20th Ave
269 of 409
National Data & Surveying Services
Intersection Turning Movement Count
Location: La Salle Dr & W 20th Ave
City: San Mateo Project ID:

Control: 1-Way Stop(NB) Date:

NS/EW Streets:
0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
7:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
7:15 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
7:30 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
7:45 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
8:00 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 3
8:15 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
8:30 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
8:45 AM 0 0 0 0 0 0 0 0 0 3 0 0 0 1 0 0 4

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
TOTAL VOLUMES : 0 0 0 0 0 0 0 0 0 3 0 0 0 6 0 0 9
APPROACH %'s : 0.00% 100.00% 0.00% 0.00% 0.00% 100.00% 0.00% 0.00% PEAK HR : 7:45 AM 40 0 0 TOTAL
PEAK HR VOL : 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 4
PEAK HR FACTOR : 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.333 0.000 0.000 Headers NBL NBT NBR NBU SBL SBT SBR SBU EBL EBT EBR EBU WBL WBT WBR WBU 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
2:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2:15 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2:45 PM 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 0 3
3:00 PM 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 2
3:15 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3:30 PM 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
3:45 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
TOTAL VOLUMES : 0 0 0 0 0 0 0 0 0 3 0 0 0 3 0 0 6
APPROACH %'s : 0.00% 100.00% 0.00% 0.00% 0.00% 100.00% 0.00% 0.00% PEAK HR : 2:30 PM 175 0 0 TOTAL
PEAK HR VOL : 0 0 0 0 0 0 0 0 0 2 0 0 0 3 0 0 5
PEAK HR FACTOR : 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.500 0.000 0.000 0.000 0.375 0.000 0.000 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
4:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
4:15 PM 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 2
4:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4:45 PM 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2
5:00 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
5:15 PM 0 0 0 0 0 0 0 0 0 1 0 0 0 5 0 0 6
5:30 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
5:45 PM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

NL NT NR NU SL ST SR SU EL ET ER EU WL WT WR WU TOTAL
TOTAL VOLUMES : 0 0 0 0 0 0 0 0 0 4 0 0 0 8 0 0 12
APPROACH %'s : 0.00% 100.00% 0.00% 0.00% 0.00% 100.00% 0.00% 0.00% PEAK HR : 5:00 PM 293 0 0 TOTAL
PEAK HR VOL : 0 0 0 0 0 0 0 0 0 1 0 0 0 6 0 0 7
PEAK HR FACTOR : 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.250 0.000 0.000 0.000 0.300 0.000 0.000 25-080286-001
9/4/2025
05:00 PM - 06:00 PM

0.292 0.250 0.300
02:30 PM - 03:30 PM

0.417 0.500 0.375
07:45 AM - 08:45 AM

0.333
PM

NORTHBOUND SOUTHBOUND EASTBOUND WESTBOUND
NOON

NORTHBOUND SOUTHBOUND EASTBOUND WESTBOUND

0.333
AM

NORTHBOUND SOUTHBOUND EASTBOUND WESTBOUND
Data - Bikes
La Salle Dr La Salle Dr W 20th Ave W 20th Ave
270 of 409
National Data & Surveying Services
Intersection Turning Movement Count
Location: La Salle Dr & W 20th Ave Project ID:

City: San Mateo Date:

NS/EW Streets:

EB WB EB WB NB SB NB SB TOTAL
7:00 AM 0 0 0 2 1 2 1 0 6
7:15 AM 0 2 1 0 0 0 1 1 5
7:30 AM 0 0 0 0 0 0 1 0 1
7:45 AM 1 0 2 3 0 0 0 1 7
8:00 AM 1 11 0 0 0 0 1 4 17
8:15 AM 2 3 2 1 0 0 1 1 10
8:30 AM 2 0 1 3 0 0 1 0 7
8:45 AM 2 1 1 0 0 0 0 0 4

EB WB EB WB NB SB NB SB TOTAL
TOTAL VOLUMES : 8 17 7 9 1 2 6 7 57
APPROACH %'s : 32.00% 68.00% 43.75% 56.25% 33.33% 66.67% 46.15% 53.85% PEAK HR : 7:45 AM 39 -1 -1 TOTAL
PEAK HR VOL : 6 14 5 7 0 0 3 6 41
PEAK HR FACTOR : 0.750 0.318 0.625 0.583 0.750 0.375
Headers NEB NWB SEB SWB ENS ESB WNB WSB

EB WB EB WB NB SB NB SB TOTAL
2:00 PM 1 0 1 0 0 0 0 0 2
2:15 PM 2 1 0 0 0 0 0 0 3
2:30 PM 0 2 2 8 1 2 6 1 22
2:45 PM 0 6 0 6 1 1 5 1 20
3:00 PM 1 1 6 0 0 0 1 3 12
3:15 PM 2 0 3 2 0 0 2 2 11
3:30 PM 3 0 3 3 0 0 5 0 14
3:45 PM 1 2 2 2 0 0 2 0 9

EB WB EB WB NB SB NB SB TOTAL
TOTAL VOLUMES : 10 12 17 21 2 3 21 7 93
APPROACH %'s : 45.45% 54.55% 44.74% 55.26% 40.00% 60.00% 75.00% 25.00% PEAK HR : 2:30 PM 173 -2 -2 TOTAL
PEAK HR VOL : 3 9 11 16 2 3 14 7 65
PEAK HR FACTOR : 0.375 0.375 0.458 0.500 0.500 0.375 0.583 0.583

EB WB EB WB NB SB NB SB TOTAL
4:00 PM 3 5 0 1 0 0 2 0 11
4:15 PM 1 2 5 0 0 0 0 2 10
4:30 PM 3 0 1 0 0 0 0 0 4
4:45 PM 2 3 1 1 0 0 1 0 8
5:00 PM 0 1 0 0 0 0 0 0 1
5:15 PM 1 2 0 0 0 0 1 0 4
5:30 PM 1 0 1 0 0 0 2 0 4
5:45 PM 1 1 0 1 0 0 0 0 3

EB WB EB WB NB SB NB SB TOTAL
TOTAL VOLUMES : 12 14 8 3 0 0 6 2 45
APPROACH %'s : 46.15% 53.85% 72.73% 27.27% 75.00% 25.00% PEAK HR : 5:00 PM 290 -3 -3 TOTAL
PEAK HR VOL : 3 4 1 1 0 0 3 0 12
PEAK HR FACTOR : 0.750 0.500 0.250 0.250 0.375
25-080286-001
9/4/2025

0.750 0.583 0.500 0.375
05:00 PM - 06:00 PM
02:30 PM - 03:30 PM

0.739 0.500 0.675 0.417 0.750

0.603 0.417

PM NORTH LEG SOUTH LEG EAST LEG WEST LEG

NOON NORTH LEG SOUTH LEG EAST LEG WEST LEG

0.600 0.450
07:45 AM - 08:45 AM

AM NORTH LEG SOUTH LEG EAST LEG WEST LEG
Data - Pedestrians (Crosswalks)
La Salle Dr La Salle Dr W 20th Ave W 20th Ave
271 of 409
Prepared by National Data & Surveying Services
ID: 25-080286-001 Day:

City: San Mateo Date:

AM 1 0 1 0 AM
NOON 0 0 0 0 NOON
PM 0 1 1 0 PM

AM NOON PM PM NOON AM
0 0 0 0
0 1 0 1
1 233 241 154
0 1 0 0 0 5 13 12
0 0 1 0 TEV 433 562 733 0 1 2 1
186 200 455 1 PHF 0.74 0.76 0.92
30 46 15 0
0 0 1 0

AM NOON PM PM NOON AM
PM 0 9 0 11 PM
NOON 0 27 0 32 NOON
AM 0 35 0 12 AM
Pedestrians (Crosswalks)
Cars (PM) HT (PM)
59 42

NORTHBOUND
La Salle Dr
Cars (NOON) HT (NOON)
02:30 PM - 03:30 PM
468 234 200
Cars (AM) 21 HT (AM)
W 20th Ave
E
A
S
T
B
O
U
N
D
W
E
S
T
B
O
U
N
D
W 20th Ave
190 269 242

CONTROL
1-Way Stop(NB)
0 2:00 PM - 04:00 PM
05:00 PM - 06:00 PM 2
La Salle Dr & W 20th Ave
Peak Hour Turning Movement Count
La Salle Dr Thursday
SOUTHBOUND 9/4/2025
P
4:00 PM - 06:00 PM EA

K HOURS
07:45 AM - 08:45 AM 1 7:00 AM - 09:00 AM
C

OUNT PERIO
DS

AM NOON PM
PM
AM
AM
NOON
PM
PM
NOON
AM
AM
NOON
PM
NOON
NO
ON
PMAMNO
ON
AMPM
NO
ON
AMPMNO
ON
PMAM
0 7
6 3
14 3
11151
1 6
7 0
2 0
0 3
0 194
4 336
0 0
0 1
4 0
000
001
0 2
0 1
2 0
000
001
0 1
0 0
1 0
000
000
1 233
15 4
451
1 011
1090
0 239
46 12
198
0 000
3120
7 1
153
30 12
185
0 101
1230
5 272 of 409
kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Attachment C – Synchro Reports
273 of 409
HCM 7th TWSC Existing
1: La Salle Drive & 20th Avenue Timing Plan: AM
Synchro 12 Report
Kimley-Horn Page 1
Intersection
Int Delay, s/veh 2.5
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
Traffic Vol, veh/h 186 30 12 154 35 12
Future Vol, veh/h 186 30 12 154 35 12
Conflicting Peds, #/hr 0 12 12 0 9 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # 0 - - 0 0 -
Grade, % 0 - - 0 0 -
Peak Hour Factor 72 72 93 93 44 44
Heavy Vehicles, % 2 2 2 2 2 2
Mvmt Flow 258 42 13 166 80 27
Major/Minor Major1 Major2 Minor1
Conflicting Flow All 0 0 312 0 492 291
Stage 1 - - - - 291 -
Stage 2 - - - - 200 -
Critical Hdwy - - 4.12 - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy - - 2.218 - 3.518 3.318
Pot Cap-1 Maneuver - - 1248 - 536 748
Stage 1 - - - - 758 -
Stage 2 - - - - 833 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - 1234 - 520 739
Mov Cap-2 Maneuver - - - - 520 -
Stage 1 - - - - 750 -
Stage 2 - - - - 817 -
Approach EB WB NB
HCM Control Delay, s/v 0 0.57 12.9

HCM LOS B
Minor Lane/Major Mvmt NBLn1 EBT EBR WBL WBT
Capacity (veh/h) 562 - - 130 -
HCM Lane V/C Ratio 0.19 - - 0.01 -
HCM Control Delay (s/veh) 12.9 - - 7.9 0
HCM Lane LOS B - - A A
HCM 95th %tile Q(veh) 0.7 - - 0 -
274 of 409
HCM 7th TWSC Existing
1: La Salle Drive & 20th Avenue Timing Plan: School PM
Synchro 12 Report
Kimley-Horn Page 1
Intersection
Int Delay, s/veh 1.7
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
Traffic Vol, veh/h 200 46 13 241 27 32
Future Vol, veh/h 200 46 13 241 27 32
Conflicting Peds, #/hr 0 27 27 0 21 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # 0 - - 0 0 -
Grade, % 0 - - 0 0 -
Peak Hour Factor 95 95 54 54 70 70
Heavy Vehicles, % 2 2 2 2 2 2
Mvmt Flow 211 48 24 446 39 46
Major/Minor Major1 Major2 Minor1
Conflicting Flow All 0 0 286 0 777 262
Stage 1 - - - - 262 -
Stage 2 - - - - 515 -
Critical Hdwy - - 4.12 - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy - - 2.218 - 3.518 3.318
Pot Cap-1 Maneuver - - 1276 - 365 777
Stage 1 - - - - 782 -
Stage 2 - - - - 599 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - 1243 - 340 757
Mov Cap-2 Maneuver - - - - 340 -
Stage 1 - - - - 762 -
Stage 2 - - - - 572 -
Approach EB WB NB
HCM Control Delay, s/v 0 0.41 13.99

HCM LOS B
Minor Lane/Major Mvmt NBLn1 EBT EBR WBL WBT
Capacity (veh/h) 485 - - 92 -
HCM Lane V/C Ratio 0.174 - - 0.019 -
HCM Control Delay (s/veh) 14 - - 8 0
HCM Lane LOS B - - A A
HCM 95th %tile Q(veh) 0.6 - - 0.1 -
275 of 409
HCM 7th TWSC Existing
1: La Salle Drive & 20th Avenue Timing Plan: PM
Synchro 12 Report
Kimley-Horn Page 1
Intersection
Int Delay, s/veh 0.5
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
Traffic Vol, veh/h 455 15 5 223 9 11
Future Vol, veh/h 455 15 5 223 9 11
Conflicting Peds, #/hr 0 2 2 0 3 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # 0 - - 0 0 -
Grade, % 0 - - 0 0 -
Peak Hour Factor 80 80 86 86 83 83
Heavy Vehicles, % 2 2 2 2 2 2
Mvmt Flow 569 19 6 259 11 13
Major/Minor Major1 Major2 Minor1
Conflicting Flow All 0 0 590 0 854 580
Stage 1 - - - - 580 -
Stage 2 - - - - 274 -
Critical Hdwy - - 4.12 - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy - - 2.218 - 3.518 3.318
Pot Cap-1 Maneuver - - 986 - 329 514
Stage 1 - - - - 560 -
Stage 2 - - - - 772 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - 984 - 325 513
Mov Cap-2 Maneuver - - - - 325 -
Stage 1 - - - - 559 -
Stage 2 - - - - 765 -
Approach EB WB NB
HCM Control Delay, s/v 0 0.19 14.4

HCM LOS B
Minor Lane/Major Mvmt NBLn1 EBT EBR WBL WBT
Capacity (veh/h) 407 - - 39 -
HCM Lane V/C Ratio 0.059 - - 0.006 -
HCM Control Delay (s/veh) 14.4 - - 8.7 0
HCM Lane LOS B - - A A
HCM 95th %tile Q(veh) 0.2 - - 0 -
276 of 409
HCM 7th TWSC Existing Plus Project
1: La Salle Drive & 20th Avenue Timing Plan: AM
Synchro 12 Report
Kimley-Horn Page 1
Intersection
Int Delay, s/veh 3.1
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
Traffic Vol, veh/h 186 44 13 154 47 13
Future Vol, veh/h 186 44 13 154 47 13
Conflicting Peds, #/hr 0 12 12 0 9 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # 0 - - 0 0 -
Grade, % 0 - - 0 0 -
Peak Hour Factor 72 72 93 93 44 44
Heavy Vehicles, % 2 2 2 2 2 2
Mvmt Flow 258 61 14 166 107 30
Major/Minor Major1 Major2 Minor1
Conflicting Flow All 0 0 331 0 503 301
Stage 1 - - - - 301 -
Stage 2 - - - - 203 -
Critical Hdwy - - 4.12 - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy - - 2.218 - 3.518 3.318
Pot Cap-1 Maneuver - - 1228 - 528 739
Stage 1 - - - - 751 -
Stage 2 - - - - 831 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - 1214 - 511 730
Mov Cap-2 Maneuver - - - - 511 -
Stage 1 - - - - 742 -
Stage 2 - - - - 814 -
Approach EB WB NB
HCM Control Delay, s/v 0 0.62 13.77

HCM LOS B
Minor Lane/Major Mvmt NBLn1 EBT EBR WBL WBT
Capacity (veh/h) 546 - - 140 -
HCM Lane V/C Ratio 0.25 - - 0.012 -
HCM Control Delay (s/veh) 13.8 - - 8 0
HCM Lane LOS B - - A A
HCM 95th %tile Q(veh) 1 - - 0 -
277 of 409
HCM 7th TWSC Existing Plus Project
1: La Salle Drive & 20th Avenue Timing Plan: School PM
Synchro 12 Report
Kimley-Horn Page 1
Intersection
Int Delay, s/veh 2.2
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
Traffic Vol, veh/h 200 58 14 241 40 33
Future Vol, veh/h 200 58 14 241 40 33
Conflicting Peds, #/hr 0 27 27 0 21 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # 0 - - 0 0 -
Grade, % 0 - - 0 0 -
Peak Hour Factor 95 95 54 54 70 70
Heavy Vehicles, % 2 2 2 2 2 2
Mvmt Flow 211 61 26 446 57 47
Major/Minor Major1 Major2 Minor1
Conflicting Flow All 0 0 299 0 787 268
Stage 1 - - - - 268 -
Stage 2 - - - - 519 -
Critical Hdwy - - 4.12 - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy - - 2.218 - 3.518 3.318
Pot Cap-1 Maneuver - - 1263 - 360 771
Stage 1 - - - - 777 -
Stage 2 - - - - 597 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - 1230 - 334 751
Mov Cap-2 Maneuver - - - - 334 -
Stage 1 - - - - 757 -
Stage 2 - - - - 569 -
Approach EB WB NB
HCM Control Delay, s/v 0 0.44 15.51

HCM LOS C
Minor Lane/Major Mvmt NBLn1 EBT EBR WBL WBT
Capacity (veh/h) 446 - - 99 -
HCM Lane V/C Ratio 0.234 - - 0.021 -
HCM Control Delay (s/veh) 15.5 - - 8 0
HCM Lane LOS C - - A A
HCM 95th %tile Q(veh) 0.9 - - 0.1 -
278 of 409
HCM 7th TWSC Existing Plus Project
1: La Salle Drive & 20th Avenue Timing Plan: PM
Synchro 12 Report
Kimley-Horn Page 1
Intersection
Int Delay, s/veh 0.8
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
Traffic Vol, veh/h 455 27 6 223 22 12
Future Vol, veh/h 455 27 6 223 22 12
Conflicting Peds, #/hr 0 2 2 0 3 0
Sign Control Free Free Free Free Stop Stop
RT Channelized - None - None - None
Storage Length - - - - 0 -
Veh in Median Storage, # 0 - - 0 0 -
Grade, % 0 - - 0 0 -
Peak Hour Factor 80 80 86 86 83 83
Heavy Vehicles, % 2 2 2 2 2 2
Mvmt Flow 569 34 7 259 27 14
Major/Minor Major1 Major2 Minor1
Conflicting Flow All 0 0 605 0 864 588
Stage 1 - - - - 588 -
Stage 2 - - - - 276 -
Critical Hdwy - - 4.12 - 6.42 6.22
Critical Hdwy Stg 1 - - - - 5.42 -
Critical Hdwy Stg 2 - - - - 5.42 -
Follow-up Hdwy - - 2.218 - 3.518 3.318
Pot Cap-1 Maneuver - - 973 - 325 509
Stage 1 - - - - 555 -
Stage 2 - - - - 770 -
Platoon blocked, % - - -
Mov Cap-1 Maneuver - - 971 - 320 508
Mov Cap-2 Maneuver - - - - 320 -
Stage 1 - - - - 554 -
Stage 2 - - - - 762 -
Approach EB WB NB
HCM Control Delay, s/v 0 0.23 15.99

HCM LOS C
Minor Lane/Major Mvmt NBLn1 EBT EBR WBL WBT
Capacity (veh/h) 368 - - 47 -
HCM Lane V/C Ratio 0.111 - - 0.007 -
HCM Control Delay (s/veh) 16 - - 8.7 0
HCM Lane LOS C - - A A
HCM 95th %tile Q(veh) 0.4 - - 0 -
279 of 409
kimley-horn.com 4637 Chabot Drive, Suite 300, Pleasanton, CA 94588 925-398-4840 Attachment D – Student Loading Queue Worksheet
280 of 409
Assumptions: Demand
Drop-Off AM - 8:00 - 8:25
240 sec dwell 15 veh

0.5 veh / min Capacity
Total Arrival Time
25 min
Arrival Rate