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Apx M_VMT Analysis
Appendix M Vehicle Miles Traveled Analysis Appendix M Vehicle Miles Traveled Analysis Kimley»Horn SB 743 Vehicle Miles Traveled Analysis for the: 1515 Walnut Grove Avenue Project In the City of Rosemead December 2025 SB 743 Vehicle Miles Traveled Analysis for the: 1515 Walnut Grove Avenue Project In the City of Rosemead December 2025 Kimley»Horn VEHICLE MILES TRAVELED ANALYSIS FOR THE PROPOSED 1515 WALNUT GROVE AVENUE PROJECT IN THE CITY OF ROSEMEAD Prepared by: Kimley-Horn and Associates, Inc. 1100 Town and Country Road, Suite 700 Orange, CA 92868 December 2025 VEHICLE MILES TRAVELED ANALYSIS FOR THE PROPOSED 1515 WALNUT GROVE AVENUE PROJECT IN THE CITY OF ROSEMEAD Prepared by: Kimley-Horn and Associates, Inc. 1100 Town and Country Road, Suite 700 Orange, CA 92868 December 2025 TABLE OF CONTENTS Page INTRODUCTION.................................................................................................................................................................................. 1 Purpose and Study Objectives ...............................................................................................................................................1 Project Overview ..........................................................................................................................................................................1 VMT THRESHOLDS ........................................................................................................................................................................... 4 Project Generated VMT Impacts ...........................................................................................................................................4 Project Effect On VMT ................................................................................................................................................................4 VMT SCREENING ................................................................................................................................................................................ 4 ANALYSIS SCENARIOS .................................................................................................................................................................... 5 PROJECT LAND USE CONVERSION ........................................................................................................................................... 6 VMT ANALYSIS .................................................................................................................................................................................... 6 Project-Generated VMT Calculations .................................................................................................................................6 Project Effect on VMT Calculations .....................................................................................................................................7 VMT RESULTS ...................................................................................................................................................................................... 7 VMT IMPACT DETERMINATION ................................................................................................................................................ 8 VMT MITIGATION .............................................................................................................................................................................. 9 SUMMARY OF FINDINGS AND CONCLUSIONS ................................................................................................................ 10 TABLE OF CONTENTS n= ) [)as[4 2 INTRODUCTION Purpose and Study Objectives Project Overview VMT THRESHOLDS Project Generated VMT Impacts Project Effect On VMT VMT SCREENING ANALYSIS SCENARIOS PROJECT LAND USE CONVERSION VMT ANALYSIS Project-Generated VMT Calculations Project Effect on VMT Calculations VMT RESULTS VMT IMPACT DETERMINATION VMT MITIGATION SUMMARY OF FINDINGS AND CONCLUSIONS OO ON NO O N UT dh R = poo LIST OF FIGURES Page Figure 1 – Vicinity Map ...................................................................................................................................................................2 Figure 2 –Project Site Plan ............................................................................................................................................................3 LIST OF TABLES Page Table 1 – Project SED Model Inputs .........................................................................................................................................6 Table 2 – Opening Year Project-Generated VMT ...............................................................................................................7 Table 3 – Cumulative Year Project-Generated VMT ........................................................................................................8 Table 4 – Opening Year Boundary VMT .................................................................................................................................8 Table 5 – Cumulative Year Boundary VMT...........................................................................................................................8 APPENDICES Appendix A SCAG Model Project TAZ Map Appendix B SGVCOG VMT Assessment Tool - VMT Mitigation Results LIST OF FIGURES Page Figure 1 - Vicinity Map 2 Figure 2 -Project Site Plan 3 LIST OF TABLES Page Table 1 — Project SED Model Inputs Table 2 — Opening Year Project-Generated VMT Table 3 — Cumulative Year Project-Generated VMT Table 4 — Opening Year Boundary VMT Table 5 — Cumulative Year Boundary VMT [s o l e le o BN Ji e ) APPENDICES Appendix A SCAG Model Project TAZ Map Appendix B SGVCOG VMT Assessment Tool - VMT Mitigation Results 1515 Walnut Grove Avenue - 1 - Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 VEHICLE MILES TRAVELED ANALYSIS FOR THE PROPOSED 1515 WALNUT GROVE AVENUE PROJECT IN THE CITY OF ROSEMEAD INTRODUCTION Purpose and Study Objectives This vehicle miles traveled (VMT) analysis has been conducted to address the VMT impacts of the proposed 1515 Walnut Grove Avenue project (Project) in the City of Rosemead (City). This VMT analysis has been conducted in accordance with the City of Rosemead Transportation Study Guidelines for Vehicle Miles Traveled and Level of Service Assessment (November 2024). Senate Bill 743 (SB 743), signed by the Governor in 2013, changed the way transportation impacts are evaluated under the California Environmental Quality Act (CEQA). The legislation directed the Governor’s Office of Land Use and Climate Innovation (LCI), formerly known as the Governor’s Office of Planning and Research (OPR), to develop alternative metrics for assessing transportation impacts. The Final OPR Guidelines, released in December 2018, identified VMT as the preferred metric. These guidelines, which became effective on July 1, 2020, established VMT as the standard measure for evaluating transportation impacts of land use and transportation projects. In anticipation of the change to VMT, the San Gabriel Valley Council of Governments (SGVCOG) undertook the SGVCOG SB 743 Implementation Study to assist with answering important implementation questions about the methodology, thresholds, and mitigation approaches for VMT impact analysis in its member agencies. The City of Rosemead utilized the information produced through the Implementation Study to adopt a methodology and significance thresholds for use in CEQA compliance. Consistent to the implementation study, the City recommends utilizing the Southern California Association of Government (SCAG) Travel Demand Model as its methodology to measure VMT. Project Overview The Project site is located in the south-central portion of the City of Rosemead, in the County of Los Angeles. The Project site is located at 1515 Walnut Grove Avenue. The site is shown in its local setting on Figure 1. The site is currently bounded by Walnut Grove Avenue to the east, commercial buildings to the north, single-family housing to the west, and institutional uses to the south. The proposed Project will involve demolition of an existing vacant Southern California Edison building and central plant building and will construct 191 dwelling units comprised of 83 tandem townhomes and 108 row townhomes. A copy of the Project site plan is provided on Figure 2. The proposed Opening Year for the Project is 2029. The Project will be developed in a single phase. VEHICLE MILES TRAVELED ANALYSIS FOR THE PROPOSED 1515 WALNUT GROVE AVENUE PROJECT IN THE CITY OF ROSEMEAD INTRODUCTION Purpose and Study Objectives This vehicle miles traveled (VMT) analysis has been conducted to address the VMT impacts of the proposed 1515 Walnut Grove Avenue project (Project) in the City of Rosemead (City). This VMT analysis has been conducted in accordance with the City of Rosemead Transportation Study Guidelinesfor Vehicle Miles Traveled and Level ofService Assessment (November 2024). Senate Bill 743 (SB 743), signed by the Governor in 2013, changed the way transportation impacts are evaluated under the California Environmental Quality Act (CEQA). The legislation directed the Governor's Office of Land Use and Climate Innovation (LCI), formerly known as the Governor's Office of Planning and Research (OPR), to develop alternative metrics for assessing transportation impacts. The Final OPR Guidelines, released in December 2018, identified VMT as the preferred metric. These guidelines, which became effective on July 1, 2020, established VMT as the standard measure for evaluating transportation impacts of land use and transportation projects. In anticipation of the change to VMT, the San Gabriel Valley Council of Governments (SGVCOG) undertook the SGVCOG SB 743 Implementation Study to assist with answering important implementation questions about the methodology, thresholds, and mitigation approaches for VMT impact analysis in its member agencies. The City of Rosemead utilized the information produced through the Implementation Study to adopt a methodology and significance thresholds for use in CEQA compliance. Consistent to the implementation study, the City recommends utilizing the Southern California Association of Government (SCAG) Travel Demand Model as its methodology to measure VMT. Project Overview The Project site is located in the south-central portion of the City of Rosemead, in the County of Los Angeles. The Project site is located at 1515 Walnut Grove Avenue. The site is shown in its local setting on Figure 1. The site is currently bounded by Walnut Grove Avenue to the east, commercial buildings to the north, single-family housing to the west, and institutional uses to the south. The proposed Project will involve demolition of an existing vacant Southern California Edison building and central plant building and will construct 191 dwelling units comprised of 83 tandem townhomes and 108 row townhomes. A copy of the Project site plan is provided on Figure 2. The proposed Opening Year for the Project is 2029. The Project will be developed in a single phase. 1515 Walnut Grove Avenue -1- Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 SAN G A B R I E L B L V D WA L N U T G R O V E A V E HILL D R PA R A M O U N T B L V D RUSH ST GRAVES AVE NE W A V E GARVEY AVE RO S E M E A D B L V D RO S E M E A D P L POTR E R O G R A N D E D R EMERSON PL N MONTEBELL O B L V D DE L M A R A V E ST R A T H M O R E A V E KE L B U R N A V E RI V E R A V E CALIFORNIA60 WALMART DWY LANDIS VIEW LN - 2 - NOT TO SCALE FIGURE 1 VICINITY MAP\_ Vien MAP EMERSON PL & <C[1T)>|e)[V2]fe][<4GARVEY AVE IS] > 2Lu]2 = = 2 be = =~ > > >> = w < [@) I< Zz oc = =IEErE =o = wo GRAVES AVE | — — - RUSH ST WALMART DWY| E S2 2 2 oZK : , 0, Y 5 a R z e) <C s 2nvL Lory, = 8 $s 5 2 DIS VIEW LN D) ob DS [J ~ > S oa Cl oi 3, 3 <g N Mon,EBELLO By ~ NOT TO SCALE ( Kimley»Horn - 3 - FIGURE 2 PROJECT SITE PLAN NOT TO SCALE BLDG TOTAL AREA BLDG AREA BLDG UNIT BREAKDOWN (SQ.FT) COUNT (SQ.FT.) Bldg T-6 3-1-2-1-2-3 8,778 4 35,112 Bldg T-8 3-1-2-1-2-1-2-3 11,478 8 91,824 Bldg T-10 3-1-2-1-2-1-2-1-2-3 14,178 2 28,356 Total 14 155,292 TANDEM TOWNS NOT TO SCALE BldgRS 4-32-34 10,165 2 20,330 BldgR6 4-3-2324 12,062 4 48,248 BldgR7 4-2-323-11 12,269 7 85,883 Total 13 154,461 = PART (a) a Iho| UNIT BED. Guest private ART (0) (Dm i UNIT AREA ROOM GARAGE SPACES OUTDOOR i COUNT (SQ.FT) COUNT SPACES REQD SPACE | | TANDEM TOWNS © 1 i Plan 1 40 1147 2 2 05 69 2 1 | Pan2 40 1553 2 2 05 60 Shy Plan3 28 1689 3 2 05 7 wil Plan3x © 1701 3 2 05 105 5 1 I Tandem Town Total 108 bY 1 iNY iROWTOWNS Sh Plan 1 (Carriage) 14 1204 2 2 0.5 55 ! | Pan2 24 1897 31 2 1 83 | Plan3 26 1033 3 2 0s 64 in Pland 19 2201 4 2 05 gs RTO TrRowtowns Total ~~ 83 TOTALUNITS 191 | PARKING Garage Spaces Required 382 Guest Spaces Required 107.5 TotalSpaces Required 489.5 Garage Spaces Provided 382 Guest Spaces Provided 109 Total Spaces Provided 291 OPEN SPACE Total Open SpaceRequired(sq. ft.) 76,400 Private Open Space Provided (sq. ft.) 13,189 Public Open Space Provided (sq. ft.} 66,038 Basin Open Space Provided (sq. ft.) 5,000 Total Open Space Provided (sq. ft.) 88,227 SITE DATA Overall Site Area {Acres) 9.28 Total Units 191 OverallDensity (Units per Acre} FIGURE 2 PROJECT SITE PLAN 81 5 TTT] Hii dil TE] A fli J; ! kb © J SE FA S T E R L Y LI N E LO T 23 ~~ NO Q - 2 5 . 3 6 " W _ _ 6 6 0 . 0 2 " NO O 2 5 ° 3 6 " W 66 0 . 0 1 CL WA L N U T GR O V E AV E N U E (P U B L I C ST R E E T ) —al ] =f= VV I V V ] VV ll +, / ~ 50 0 0 SF BA S I N 8 PA R T (a ) (2 ) ( Kimley»Horn 1515 Walnut Grove Avenue - 4 - Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 VMT THRESHOLDS The City of Rosemead has adopted the following VMT significance criteria. Project Generated VMT Impacts Based on the City guidelines, a project would result in a significant project generated VMT impact if either of the following conditions are satisfied: ·The baseline project generated VMT per capita exceeds 15% below the SGVCOG baseline VMT per capita ·The cumulative project generated VMT per capita exceeds 15% below the SGVCOG baseline VMT per capita The above threshold criteria are intended for three primary land uses – Residential, Office and Industrial. The proposed Project is for residential land use; therefore, the VMT per capita metric was used to evaluate Project Generated VMT impacts for this Project. Project Effect On VMT The Project effect on VMT would be considered significant if it results in the following condition being satisfied: ·The cumulative link-level boundary VMT per service population increases under the plus Project condition compared to the no Project condition. VMT SCREENING This section documents VMT / SB 743 considerations for the Project. The City Guidelines provides details on appropriate screening thresholds that can be used to identify when a proposed land use project is anticipated to result in a less than significant impact without conducting a more detailed level analysis. Screening thresholds are broken into the following three steps: 1.Transit Priority Areas (TPA) Screening As described in the City Guidelines, projects located within half mile from an existing major transit stop or within half of a mile from an existing stop along a high-quality transit corridor can be screened out. The Project site is served by public transit provided by Los Angeles County Metropolitan Transportation Authority (Metro). Line 287 is a north-south fixed-route bus service that operates from The Shops at Montebello to the end at the Metro Arcadia Station. On weekdays, Line 287 operates between 5:17 AM and 7:57 PM on approximately 40-minute headways. On weekends, Line 287 operates between 6:00 AM and 9:00 PM on 60-minute headways. The nearest bus stop is at the intersection of Walnut Grove Avenue and Rush Street, which is located approximately 1,600 feet to the north of Project Site. VMT THRESHOLDS The City of Rosemead has adopted the following VMT significance criteria. Project Generated VMT Impacts Based on the City guidelines, a project would result in a significant project generated VMT impact if either of the following conditions are satisfied: eo The baseline project generated VMT per capita exceeds 15% below the SGVCOG baseline VMT per capita e The cumulative project generated VMT per capita exceeds 15% below the SGVCOG baseline VMT per capita The above threshold criteria are intended for three primary land uses — Residential, Office and Industrial. The proposed Project is for residential land use; therefore, the VMT per capita metric was used to evaluate Project Generated VMT impacts for this Project. Project Effect On VMT The Project effect on VMT would be considered significant if it results in the following condition being satisfied: oe The cumulative link-level boundary VMT per service population increases under the plus Project condition compared to the no Project condition. VMT SCREENING This section documents VMT / SB 743 considerations for the Project. The City Guidelines provides details on appropriate screening thresholds that can be used to identify when a proposed land use project is anticipated to result in a less than significant impact without conducting a more detailed level analysis. Screening thresholds are broken into the following three steps: 1. Transit Priority Areas (TPA) Screening As described in the City Guidelines, projects located within half mile from an existing major transit stop or within half of a mile from an existing stop along a high-quality transit corridor can be screened out. The Project site is served by public transit provided by Los Angeles County Metropolitan Transportation Authority (Metro). Line 287 is a north-south fixed-route bus service that operates from The Shops at Montebello to the end at the Metro Arcadia Station. On weekdays, Line 287 operates between 5:17 AM and 7:57 PM on approximately 40-minute headways. On weekends, Line 287 operates between 6:00 AM and 9:00 PM on 60-minute headways. The nearest bus stop is at the intersection of Walnut Grove Avenue and Rush Street, which is located approximately 1,600 feet to the north of Project Site. 1515 Walnut Grove Avenue -4- Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 1515 Walnut Grove Avenue - 5 - Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 Based on the City Guidelines, the Project may be presumed to have a less than significant impact absent substantial evidence to the contrary. The City Guidelines state that this presumption may NOT be appropriate if the project: ·Has a Floor Area Ratio (FAR) of less than 0.75; ·Includes more parking for use by residents, customers, or employees of the project than required by the jurisdiction (if the jurisdiction requires the project to supply parking); ·Is inconsistent with the applicable Sustainable Communities Strategy (as determined by the lead agency, with input from the Southern California Association of Governments (SCAG)); ·Replaces affordable residential units with a smaller number of moderate-or high-income residential units. Project does not meet any of the criteria that would disqualify it from TPA. Therefore, the Project is not screened out based on TPA screening. 2.Low VMT-Generation Area Screening Projects that can reasonably be expected to generate VMT per capita that is similar to the existing land use in a low VMT area can qualify for the Low VMT Area Screening. Proposed projects are “screened out” if located within low VMT area of ‘Home-Based VMT per Capita below the City’s adopted VMT threshold. Based on the SGVCOG online VMT tool, the Project is not below 15% of the regional daily Home-Based VMT per capita. Therefore, the Project is not screened out based on the Low VMT-Generation Area screening. 3.Project Type Screening Some project types have been identified in the City guidelines as having the presumption of a less than significant impact. The following uses can be presumed to have a less than significant impact absent substantial evidence to the contrary as their uses are local serving in nature: ·Local-serving retail uses less than 50,000 square feet ·Other local-serving uses as approved by the City Staff ·Projects generating less than 110 daily vehicle trips Since the proposed Project land use is expected to generate more than 110 daily vehicle trips, the Project is not screened out based on Project Type screening. A land use project needs only meet one of the above screening thresholds to be presumed to result in non-significant impact under CEQA pursuant to SB 743. As mentioned above, the proposed Project does not met any of the criteria that would qualify it to be non-significant. Therefore, a complete VMT analysis was conducted to further analyze the VMT impacts. ANALYSIS SCENARIOS The VMT analysis was completed using the latest version of SCAG Travel Demand Model (RTP 2024 ABM model), referred to as the “SCAG Model”. This is an activity-based model that simulates the daily activity and travel choices of individuals, capturing interactions between different land uses and informed by socio-economic data (SED) such as population, households, and employment. Based on the City Guidelines, the Project may be presumed to have a less than significant impact absent substantial evidence to the contrary. The City Guidelines state that this presumption may NOT be appropriate if the project: oe Has a Floor Area Ratio (FAR) of less than 0.75; e Includes more parking for use by residents, customers, or employees of the project than required by the jurisdiction (if the jurisdiction requires the project to supply parking); e Is inconsistent with the applicable Sustainable Communities Strategy (as determined by the lead agency, with input from the Southern California Association of Governments (SCAG)); eo Replaces affordable residential units with a smaller number of moderate-or high-income residential units. Project does not meet any of the criteria that would disqualify it from TPA. Therefore, the Project is not screened out based on TPA screening. 2. Low VMT-Generation Area Screening Projects that can reasonably be expected to generate VMT per capita that is similar to the existing land use in a low VMT area can qualify for the Low VMT Area Screening. Proposed projects are “screened out” if located within low VMT area of ‘Home-Based VMT per Capita below the City’s adopted VMT threshold. Based on the SGVCOG online VMT tool, the Project is not below 15% of the regional daily Home-Based VMT per capita. Therefore, the Project is not screened out based on the Low VMT-Generation Area screening. 3. Project Type Screening Some project types have been identified in the City guidelines as having the presumption of a less than significant impact. The following uses can be presumed to have a less than significant impact absent substantial evidence to the contrary as their uses are local serving in nature: e Local-serving retail uses less than 50,000 square feet e Other local-serving uses as approved by the City Staff e Projects generating less than 110 daily vehicle trips Since the proposed Project land use is expected to generate more than 110 daily vehicle trips, the Project is not screened out based on Project Type screening. A land use project needs only meet one of the above screening thresholds to be presumed to result in non-significant impact under CEQA pursuant to SB 743. As mentioned above, the proposed Project does not met any of the criteria that would qualify it to be non-significant. Therefore, a complete VMT analysis was conducted to further analyze the VMT impacts. ANALYSIS SCENARIOS The VMT analysis was completed using the latest version of SCAG Travel Demand Model (RTP 2024 ABM model), referred to as the “SCAG Model”. This is an activity-based model that simulates the daily activity and travel choices of individuals, capturing interactions between different land uses and informed by socio-economic data (SED) such as population, households, and employment. 1515 Walnut Grove Avenue -5- Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 1515 Walnut Grove Avenue - 6 - Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 The current version of the SCAG Model maintains a base year condition of 2019 and the future year of 2050. The project’s VMT analysis was conducted for opening and cumulative scenarios and results were compared to existing base year model conditions. The analysis includes the following scenarios: ·Existing Conditions - Based on 2019 Base Year Model conditions. ·Opening Year Plus Project Conditions – Based on 2019 Model with the project land use and interpolated between Years 2019 and 2050 to get Year 2029 conditions ·Cumulative No Project Conditions – Based on the 2050 Model conditions without the project land use. ·Cumulative Plus Project Conditions – Based on 2050 Model conditions with the project land use. PROJECT LAND USE CONVERSION To evaluate the Project’s VMT impacts, the land use plan needed to be first converted into a SCAG compatible dataset. This dataset relied on land use assumptions developed as part of the proposed Project. To represent the Project, adjustments to household and population data were made to the model TAZ 22184200, which consists of the entire Project site.Table 1 shows the household information for the Project that was added to the Model. The Project TAZ in the model modified for the analysis is shown in Appendix A. Table 1 – Project SED Model Inputs Inputs Value Single-Family Attached Housing Units 191 VMT ANALYSIS As required in the City’s Transportation Study Guidelines, VMT impacts are evaluated based on “project-generated VMT” and the “project effect on VMT.” Project-generated VMT based on trips and trip distances of Project-specific trip origins and destinations. The effect on VMT is an estimate of how VMT within the City will change once a project is built and new and existing traffic redistributes. Project-Generated VMT Calculations Project-generated VMT significance thresholds are based on land use type, broadly categorized as efficiency metrics. Efficiency metrics include Home-Based VMT per capita. This metric is derived by isolating home-based trips from the model’s activity-based daily trip simulation results. The calculation of VMT efficiency metrics using this method has two components – the total number of weekday home-based trips generated and the average trip length of each vehicle for these trips. Home-based VMT per capita is determined by dividing the total home-based trip production VMT by total population derived from the model. The home-based VMT per capita is used to measure the efficiency of VMT generated by residential uses. The current version of the SCAG Model maintains a base year condition of 2019 and the future year of 2050. The project's VMT analysis was conducted for opening and cumulative scenarios and results were compared to existing base year model conditions. The analysis includes the following scenarios: e Existing Conditions - Based on 2019 Base Year Model conditions. e Opening Year Plus Project Conditions — Based on 2019 Model with the project land use and interpolated between Years 2019 and 2050 to get Year 2029 conditions e Cumulative No Project Conditions — Based on the 2050 Model conditions without the project land use. e Cumulative Plus Project Conditions — Based on 2050 Model conditions with the project land use. PROJECT LAND USE CONVERSION To evaluate the Project's VMT impacts, the land use plan needed to be first converted into a SCAG compatible dataset. This dataset relied on land use assumptions developed as part of the proposed Project. To represent the Project, adjustments to household and population data were made to the model TAZ 22184200, which consists of the entire Project site. Table 1 shows the household information for the Project that was added to the Model. The Project TAZ in the model modified for the analysis is shown in Appendix A. Table 1 - Project SED Model Inputs Inputs Value Single-Family Attached Housing Units 191 VMT ANALYSIS As required in the City’s Transportation Study Guidelines, VMT impacts are evaluated based on “project-generated VMT” and the “project effect on VMT.” Project-generated VMT based on trips and trip distances of Project-specific trip origins and destinations. The effect on VMT is an estimate of how VMT within the City will change once a project is built and new and existing traffic redistributes. Project-Generated VMT Calculations Project-generated VMT significance thresholds are based on land use type, broadly categorized as efficiency metrics. Efficiency metrics include Home-Based VMT per capita. This metric is derived by isolating home-based trips from the model's activity-based daily trip simulation results. The calculation of VMT efficiency metrics using this method has two components - the total number of weekday home-based trips generated and the average trip length of each vehicle for these trips. Home-based VMT per capita is determined by dividing the total home-based trip production VMT by total population derived from the model. The home-based VMT per capita is used to measure the efficiency of VMT generated by residential uses. 1515 Walnut Grove Avenue -6- Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 1515 Walnut Grove Avenue - 7 - Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 The project-generated VMT per capita was calculated using an incremental VMT approach. Since the project TAZ also includes other existing and planned land uses, total TAZ-level VMT is not fully attributable to the proposed project. To isolate the project’s contribution, the difference in VMT between the No Project and With Project conditions (i.e., incremental VMT) was used to represent project-generated VMT. This incremental VMT was then divided by the project’s population to calculate project-generated VMT per capita for both Opening Year and Cumulative conditions. Project Effect on VMT Calculations Consistent with the City’s VMT Guidelines, the Project effect on VMT was evaluated using the boundary method. The boundary method is the total daily VMT within a specific area calculated by multiplying the daily vehicle traffic volume on all the roadway segments by the length of each of the roadway segments within that specific study area. This approach includes all trips, including those trips that do not begin or end in the designated boundary. This method also captures the effect of cut- through and/or displaced traffic within the specific study area. The VMT impact is determined by normalizing the boundary VMT by the service population and comparing the results between the with and the without Project conditions. The Project effect on VMT, using the boundary method, was evaluated within a 35-mile buffer area from the Project site, which represents the average VMT traveled per service population for the Project’s TAZ. VMT RESULTS The following summarizes the results of the VMT analysis.Table 2 shows the Opening Year (2029) Project-generated VMT per capita compared to the SGVCOG threshold. As shown in Table 2, the Project-generated VMT per capita (16.23) is above the SGVCOG threshold (13.37), resulting in a VMT reduction requirement of 17.6% to achieve a less than significant VMT impact. Similarly,Table 3 shows Cumulative Year (2050) Project-generated VMT per capita (15.92) that is also above the SGVCOG threshold. Table 2 – Opening Year Project-Generated VMT VMT Metric Project VMT Threshold (15% Below SGVCOG Average)13.37 Project Generated VMT per Capita 16.23 Exceeds City’s Threshold Yes Excess VMT 2.86 Required VMT Reduction 17.6% The project-generated VMT per capita was calculated using an incremental VMT approach. Since the project TAZ also includes other existing and planned land uses, total TAZ-level VMT is not fully attributable to the proposed project. To isolate the project's contribution, the difference in VMT between the No Project and With Project conditions (i.e, incremental VMT) was used to represent project-generated VMT. This incremental VMT was then divided by the project's population to calculate project-generated VMT per capita for both Opening Year and Cumulative conditions. Project Effect on VMT Calculations Consistent with the City’s VMT Guidelines, the Project effect on VMT was evaluated using the boundary method. The boundary method is the total daily VMT within a specific area calculated by multiplying the daily vehicle traffic volume on all the roadway segments by the length of each of the roadway segments within that specific study area. This approach includes all trips, including those trips that do not begin or end in the designated boundary. This method also captures the effect of cut- through and/or displaced traffic within the specific study area. The VMT impact is determined by normalizing the boundary VMT by the service population and comparing the results between the with and the without Project conditions. The Project effect on VMT, using the boundary method, was evaluated within a 35-mile buffer area from the Project site, which represents the average VMT traveled per service population for the Project's TAZ. VMT RESULTS The following summarizes the results of the VMT analysis. Table 2 shows the Opening Year (2029) Project-generated VMT per capita compared to the SGVCOG threshold. As shown in Table 2, the Project-generated VMT per capita (16.23) is above the SGVCOG threshold (13.37), resulting ina VMT reduction requirement of 17.6% to achieve a less than significant VMT impact. Similarly, Table 3 shows Cumulative Year (2050) Project-generated VMT per capita (15.92) that is also above the SGVCOG threshold. Table 2 - Opening Year Project-Generated VMT 4 VMT Metric Project | VMT Threshold (15% Below SGVCOG Average) 13.37 Project Generated VMT per Capita 16.23 Exceeds City's Threshold Yes Excess VMT 2.86 Required VMT Reduction 17.6% 1515 Walnut Grove Avenue -7- Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 1515 Walnut Grove Avenue - 8 - Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 Table 3 – Cumulative Year Project-Generated VMT VMT Metric Project VMT Threshold (15% Below SGVCOG Average)13.37 Project Generated VMT per Capita 15.92 Exceeds City’s Threshold Yes Excess VMT 2.55 Required VMT Reduction 16.0% Table 4 and Table 5 show the results of the boundary VMT method. As shown in the Table 4, there is an increase in Project Boundary VMT between Opening Year No Project and Plus Project conditions. However, the Boundary VMT per service population remains the same between the No Project (14.16) and the Plus Project (14.16) conditions. Similarly,Table 5 shows this same relationship under the Cumulative year conditions. The cumulative Plus Project Boundary VMT per service population (12.90) remains the same as No Project (12.90). Table 4 – Opening Year Boundary VMT VMT Metric No Project Plus Project Project Boundary VMT 287,412,352 287,431,140 Project Boundary Service Population 20,300,768 20,300,243 Project Boundary VMT Per Service Population 14.16 14.16 Table 5 – Cumulative Year Boundary VMT VMT Metric No Project Plus Project Project Boundary VMT 276,691,471 276,745,891 Project Boundary Service Population 21,456,694 21,457,189 Project Boundary VMT Per Service Population 12.90 12.90 VMT IMPACT DETERMINATION Based on the VMT analysis, potential Project’s VMT impacts were determined using the City’s VMT Guidelines and the following findings are made: ·The Project exceeds the SGVCOG VMT threshold under the Opening Year and Cumulative Year conditions. Therefore,the Project-generated VMT impact is considered to be significant. ·The Project boundary VMT per service population does not increase under plus Project conditions for both Opening Year and Cumulative Year conditions. Therefore,the Project effect on VMT impact is considered to be less than significant. Table 3 - Cumulative Year Project-Generated VMT yy VMT Metric Project | VMT Threshold (15% Below SGVCOG Average) 13.37 Project Generated VMT per Capita 15.92 Exceeds City's Threshold Yes Excess VMT 2.55 Required VMT Reduction 16.0% Table 4 and Table 5 show the results of the boundary VMT method. As shown in the Table 4, there is an increase in Project Boundary VMT between Opening Year No Project and Plus Project conditions. However, the Boundary VMT per service population remains the same between the No Project (14.16) and the Plus Project (14.16) conditions. Similarly, Table 5 shows this same relationship under the Cumulative year conditions. The cumulative Plus Project Boundary VMT per service population (12.90) remains the same as No Project (12.90). Table 4 - Opening Year Boundary VMT 4 VMT Metric No Project Plus ere] Project Boundary VMT 287,412,352 287,431,140 Project Boundary Service Population 20,300,768 20,300,243 Project Boundary VMT Per Service Population 14.16 14.16 Table 5 - Cumulative Year Boundary VMT Pp VMT Metric No Project Plus | Project Boundary VMT 276,691,471 276,745,891 Project Boundary Service Population 21,456,694 21,457,189 Project Boundary VMT Per Service Population 12.90 12.90 VMT IMPACT DETERMINATION Based on the VMT analysis, potential Project's VMT impacts were determined using the City’s VMT Guidelines and the following findings are made: e The Project exceeds the SGVCOG VMT threshold under the Opening Year and Cumulative Year conditions. Therefore, the Project-generated VMT impact is considered to be significant. eo The Project boundary VMT per service population does not increase under plus Project conditions for both Opening Year and Cumulative Year conditions. Therefore, the Project effect on VMT impact is considered to be less than significant. 1515 Walnut Grove Avenue -8- Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 1515 Walnut Grove Avenue - 9 - Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 TRANSPORTATION DEMAND MANAGEMENT MEASURES As part of the SGVCOG SB 743 Implementation Study, key Transportation Demand Management (TDM) measures that are appropriate to the region were identified. Measures appropriate for the City are available in the SGVCOG VMT Assessment Tool. Additionally, the California Air Pollution Control Officers Association (CAPCOA) Handbook for Analyzing Greenhouse Gas Emission Reductions, Assessing Climate, October 2024 (CAPCOA Handbook) is one of the primary bases for estimating mitigation effects of several TDM measures in California. Based on a review of these measures, the following TDM measures were evaluated for their applicability to the Project and their ability to reduce Project-generated VMT: Increase Residential Density (T-01): This measure increases the number of dwelling units per acre compared to the surrounding area, thereby promoting a more compact and efficient land use pattern. Higher residential density supports shorter trip lengths, encourages walking and biking, and enhances the viability of nearby public transit. Residents living in denser neighborhoods typically have reduced vehicle ownership and drive less, contributing to a reduction in overall VMT. The project is proposing a higher residential density compared to the surrounding area. VMT Reduction Calculations: Based on the SGVCOG VMT Assessment Tool, the potential VMT reduction associated with this strategy is up to 27.8 percent. The required VMT reduction for the Project is 17.6%. Implementation of TDM measure T-01 will reduce the VMT by up to 27.8%, resulting in a project-generated VMT per Capita below VMT threshold. VMT reduction worksheet from the SGVCOG VMT Assessment Tool is included in Appendix B. TRANSPORTATION DEMAND MANAGEMENT MEASURES As part of the SGVCOG SB 743 Implementation Study, key Transportation Demand Management (TDM) measures that are appropriate to the region were identified. Measures appropriate for the City are available in the SGVCOG VMT Assessment Tool. Additionally, the California Air Pollution Control Officers Association (CAPCOA) Handbook for Analyzing Greenhouse Gas Emission Reductions, Assessing Climate, October 2024 (CAPCOA Handbook] is one of the primary bases for estimating mitigation effects of several TDM measures in California. Based on a review of these measures, the following TDM measures were evaluated for their applicability to the Project and their ability to reduce Project-generated VMT: Increase Residential Density (T-01): This measure increases the number of dwelling units per acre compared to the surrounding area, thereby promoting a more compact and efficient land use pattern. Higher residential density supports shorter trip lengths, encourages walking and biking, and enhances the viability of nearby public transit. Residents living in denser neighborhoods typically have reduced vehicle ownership and drive less, contributing to a reduction in overall VMT. The project is proposing a higher residential density compared to the surrounding area. VMT Reduction Calculations: Based on the SGVCOG VMT Assessment Tool, the potential VMT reduction associated with this strategy is up to 27.8 percent. The required VMT reduction for the Project is 17.6%. Implementation of TDM measure T-01 will reduce the VMT by up to 27.8%, resulting in a project-generated VMT per Capita below VMT threshold. VMT reduction worksheet from the SGVCOG VMT Assessment Tool is included in Appendix B. 1515 Walnut Grove Avenue -9- Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 1515 Walnut Grove Avenue - 10 - Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 SUMMARY OF FINDINGS AND CONCLUSIONS Based on the results of this analysis, the following findings and conclusions are made: ·The Project-Generated VMT impact of the proposed Project would exceed the City’s significance threshold and the Project would therefore have a potentially significant residential VMT impact. The Project would implement CAPCOA Handbook Strategy T-01 which will reduce the Project's residential VMT impact by 27.8%. With implementation of this TDM, the Project-generated residential VMT per Capita would be reduced to a level below the City’s significance threshold, and the Project’s VMT impact would therefore be considered less than significant. SUMMARY OF FINDINGS AND CONCLUSIONS Based on the results of this analysis, the following findings and conclusions are made: e The Project-Generated VMT impact of the proposed Project would exceed the City’s significance threshold and the Project would therefore have a potentially significant residential VMT impact. The Project would implement CAPCOA Handbook Strategy T-01 which will reduce the Project's residential VMT impact by 27.8%. With implementation of this TDM, the Project-generated residential VMT per Capita would be reduced to a level below the City’s significance threshold, and the Project's VMT impact would therefore be considered less than significant. 1515 Walnut Grove Avenue -10- Kimley-Horn and Associates, Inc. Vehicle Miles Traveled Analysis December 2025 Appendix A – SCAG Model Project TAZ Map Appendix A - SCAG Model Project TAZ Map J $22184200 And, R, ne oN8 ar" : K be J tL ie oe 3':**t City of Rosemead Project TAZ Appendix B – SGVCOG VMT Assessment Tool - VMT Reduction Results Appendix B - SGVCOG VMT Assessment Tool - VMT Reduction Results SGVCOG VMT Evaluation Tool Report INDIVIDUAL MEASURE REDUCTION RESULTS VMT REDUCTION LAND USE T-01Increase Residential Density (P/S) 2.80%] Residential density of project development (du/acre) 20.6 T-02 Increase Job Density (P/S) Not Selected Job density of project development (jobs/acre) - T-03 Provide Transit-Oriented Development (P/S) Not Selected T-04 Integrate Affordable and Below Market Rate Housing (P/S) Not Selected Percent of multifamily units permanently dedicated as affordable (96) - T-17 Improve Street Connectivity {P/C) Not Selected Intersection density in project site with measure (int/sq mile) -