ATTACHMENT D.11
VEHICLE MILES TRAVELED ASSESSMENT
N:\3940 - Santa Fe Flores\Report\VMT\Santa Fe Flores VMT_Dec 2025.docx December 4, 2025
Mr. Paul Mayer
Santa Fe Flores LP
PO Box 903
Rancho Santa Fe, CA 92067
LLG Reference: 3-24-3940
Subject: Santa Fe Flores Townhomes VMT Assessment
San Marcos, California
Dear Mr. Mayer:
Linscott, Law & Greenspan, Engineers (LLG) has prepared this assessment of Vehicle Miles Traveled (VMT) for the Santa Fe Flores Townhomes project (“Project”). The Project site is located at 2966, 2972 and 2982 S. Santa Fe Avenue , on the northwest corner of the S. Santa Fe Avenue / N. Las Flores Drive intersection in the City of San Marcos. The P roject proposes the development of 46 multi-family dwelling units. The Project’s site plan is shown on Figure 1.
This assessment has been prepared to evaluate the effects of the Project based on VMT, as proposed by the California Governor’s Office of Planning and Research (OPR) to implement California State Law Senate Bill (SB) 743 and subsequently adopted by the City of San Marcos in November 2020. The analysis methodology contained in this report utilizes the City of San Marcos’ latest Transportation Impact Analysis Guidelines (November 16, 2020).
VMT BACKGROUND
VMT is defined as the “amount and distance of automobile travel attributable to a project” per CEQA Guidelines Section 15064.3. VMT is a measure of the use and efficiency of the transportation network as well land uses in a region. VMT is calculated based on individual vehicle trips generated and their associated trip lengths. VMT accounts for two- way (roundtrip) travel and is estimated for a typical weekday for the purposes of measuring transportation impacts.
The potential transportation impacts of the proposed Project are based on VMT to satisfy the California Environmental Quality Act (CEQA) guidelines through SB 743.
Public Resources Code section 20199, enacted pursuant to SB 743, identifies VMT as
Mr. Paul Mayer
December 4, 2025
N:\3940 - Santa Fe Flores\Report\VMT\Santa Fe Flores VMT_Dec 2025.docx an appropriate metric for measuring transportation impacts along with the elimination of auto delay/Level of service (LOS) for CEQA purposes statewide.
VMT ASSESSMENT
Based on the City of San Marcos Transportation Impact Analysis Guidelines , the requirement to prepare a detailed transportation VMT analysis applies to all land development projects except for those that meet at least one of the provided screening criteria. A project that meets at least one of the screening criteria listed below would be considered to have a less -than-significant impact due to the project or location characteristics.
1. Small Projects (less than 110 daily vehicle trips)
2. Affordable Housing (100% deed restricted)
3. Local Serving Retail and Public Facilities (50,000 square feet gross floor area or less)
4. Adjacency to High-Quality Transit
5. Map-Based Screening (projects located in VMT efficient areas) : Residential and employment projects that are proposed in areas that generate VMT below adopted City thresholds can be presumed to have a less- than-significant transportation impact and would not require a detailed VMT analysis. This determination must be made using SANDAG’s online residential and employment VMT maps, which show census tracts in the city where the VMT is below the regional average. The following types of projects could be screened out using this approach:
Residential projects proposed in census tracts with residential VMT per capita below the City’s threshold of exceeding 85 percent of the SANDAG regional average
Employment projects proposed in census tracts with work VMT per employee below the City’s threshold of exceeding 85 percent of the SANDAG regional average
Per SANDAG’s online residential VMT ma p, the Project site is located within Census Tract 200.18 as shown in Figure 2 . The VMT per capita of this Census Tract is 15.4 VMT, which is 81.2% of the SANDAG regional average of 19.0 VMT per capita. Therefore, screening criteria number five (5) listed above is applicable. As such, the Project can be presumed to have a less- than-significant transportation impact and would not require a detailed VMT analysis.
Mr. Paul Mayer
December 4, 2025
N:\3940 - Santa Fe Flores\Report\VMT\Santa Fe Flores VMT_Dec 2025.docx Please call me with any questions.
Sincerely,
Linscott, Law & Greenspan, Engineers
John Boarman, P.E.
Principal
California Registration: C50033
cc: File
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XXXXXXXXXXXXXXXXXXXXXXXXXXXX
TOWNHOME 1OME 1TOWNOW
6-PLEX6-PLEX
FF=500.00FF=
TOWNHOME 2WNHOOWNHOMM
6-PLEX6- LE
FF=500.000.0051051055
FF= 00 0
TOWNHOME 5HOME
6-PLEX6-PL
FF=526.0000F
TOWNHOME 6ME 6TOW
6-PLEXPLEX
FF=531.00FF=5
TOWNHOME 4HOMET
8-PLEX8-P
FF=536.0000
498 FS498 FSFF
532 FSF
537 FS537 F5 FS5
534 FSF 54F S
525 FG
525 FS5F S552
TOWNHOME 7WNHO51551555OW 7E
6-PLEX65
PL
FF=500.0000.000.
496 FS496 F6 496 FS
RETAINING WALLWALLRETAT N WAT NG L
HT=4.0'HT=4
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HT=3.0'T=
RETAINING WALLR AAR
HT=14.0'T
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PAD=500.00
RETAINING WALLR NN W
HT=10.0'T 00
RETAINING WALLNG WARR T I N W LLR
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RETAINING WALLWALLRETAIET NI W LWA
HT=6.0'HHT 0'
RETAINING WALLAW
HT=4.0'
RETAINING WALL
44G W
HT=4.5'
RETAINING WALLNINAIT
HT=1.5'H
S. SANTA FE AVENUEA EFEF A
LAS FLORES DRIVE
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MAY REQUIRE SHORING TO OVER EXCAVATE FOR BUILDINGUU R
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ALTERNATIVE FOR ADJACENT PROPERTYTY
DURING OVER EXCAVATION WORK.
MAY REQUIRE SHORING TO OVERI
EXCAVATE FOR ROADD
RETAINING WALL
HT=2.0'
526 FS526 F 530 FSS30 S 531 FS531
RETAINING WALL
HT=3.0'
RETAINING WALL
HT=5.0'
RETAINING WALLAALAL
HT=6.0'
RETAINING WALL
HT=5.0'
GRAPHIC SCALE: 1" =
0 20' 40' 60'
D 0/3/ 0
S O
TOWNHOME 7
TOWNHOME 5 & 6
TOWNHOME NO.
TOWNHOME 1 & 2
TOWNHOME 3 & 4
OVEREXCAVATION AREA
8,483 SF (10' OFFSET FROM BUILDING)
16,288 SF (10' OFFSET FROM BUILDING)
16,045 SF (10' OFFSET FROM BUILDING)
20,317 SF (10' OFFSET FROM BUILDING)
RAW REMEDIAL OVEREXCAVATION VOLUME*
1,571 CY **
3,016 CY **
2,971 CY **
11,320 CY **
3,762 CY **
* RAW REMEDIAL OVERXCAVATION QUANTITIES ARE ESTIMATES ONLY. CONTRACTOR/OWNER SHALL NOT RELY UPON QUANTITIES FOR BID PURPOSES. CONTRACTOR/OWNER TO VERIFY EARTHWORK QUANTITIES TO THEIR SATISFACTION. ** RAW OVEREXCAVATION VOLUMES FOR BUILDINGS AND ROADS ASSUMES 5' DEEP OVEREXCAVATION PER GEOTECHNICAL ENGINEER'S RECOMMENDATIONS IN GEOCON'S GEOTECHNICAL INVESTIGATION FOR PROJECT NO. G3355-42-01 DATED AUGUST 12, 2024.
LEGEND
PROPERTY LINE
APPROXIMATE LIMITS OF BUILDING REMEDIAL OVEREXCAVATION
TOTAL BUILDING OVEREXCAVATION VOLUME:
PRIVATE ROADS
ALL PRIVATE ROADS
OVEREXCAVATION AREA
28,590 SF (5' OFFSET FROM EDGE OF ROAD)
RAW REMEDIAL OVEREXCAVATION VOLUME*
5,294 CY **
APPROXIMATE LIMITS OF PRIVATE ROAD REMEDIAL OVEREXCAVATION Project Site Plan
Santa Fe Flores Townhomes
N:\3940\Figures
Date: 11/26/25
90’
Distance to
nearestBus Stop
ExistingSidewalk
ExistingBike Lane
ExistingSidewalk
N. Las Flores Drive
Figure 1
Figure 2
SANDAG Screening Map Results
N:\3473\Figures\SANDAG
Screening Map Results
SANDAG Screening Map Results
Figure 2N:\3940\Figures
Date: 08/07/24
Santa Fe Flores Townhomes