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Sponsor: RIMI

Streamlining the CEQA Process in Transit Rich Areas

Status

Complete

Project Timeline

June 14, 2022 - March 31, 2024

Principal Investigator

Nicholas Marantz

Sponsor, Program & Award Number

RIMI: RIMI-4N

Areas of Expertise

Travel Behavior, Land Use, & the Built Environment

Team Departmental Affiliation

Urban Planning and Public Policy

Project Summary

California faces major policy challenges that stem in part from decades of planning for automobility. For one, the state cannot meet its ambitious decarbonization targets without reducing greenhouse gas (GHG) emissions from the transportation sector, which produces nearly 40 percent of California’s emissions. Substantial reductions in vehicle miles traveled (VMT) are likely needed to meet the state’s climate change goals. In addition, the state is mired in a historic housing supply and affordability crisis. It ranks 49th in the United States in housing units per capita. It needs millions more units to meet demand, including 1.3 million more affordable rental units, according to one estimate. Transit oriented development (TOD), with denser housing around transit hubs, can solve both challenges—reducing driving and producing more housing. However, TOD is often difficult to achieve in practice. One frequently cited roadblock to TOD is the environmental review process under the California Environmental Quality Act (CEQA), which can add considerable time, cost, and uncertainty to TOD plans and developments. There have been numerous attempts to exempt or provide a streamlined CEQA review process for TOD projects, including through Senate Bill (SB) 375 projects (and infill developments generally). These efforts are often “criticized for layering on so many project level restrictions that no developments succeed in meeting all the eligibility requirements.” However, there is limited empirical research on how frequently the provisions have actually been used or how successful they have been at streamlining the entitlement process for TOD projects. This research project will explore the use and effect of the two CEQA streamlining provisions in SB 375 for TOD projects. One provision exempts qualifying transit priority projects (TPPs) from CEQA review entirely (Public Resources Code § 21155.1). The other provision streamlines CEQA review for qualifying TPPs (Public Resources Code § 21155.2). The researchers will catalog projects that have utilized these provisions, identify projects that likely could have taken advantage of SB 375 CEQA streamlining but did not, and interview planners and developers involved with a subset of both sets of projects. The outcome will be an in-depth exploration of how much SB 375 streamlining actually helps reduce the time, cost, and uncertainty of permitting TOD projects, and how it could be improved to better meet those goals.

Related Publications

presentation | Apr 2024

Streamlining the Permitting Process for Transit-Oriented Development: The Case of California's Senate Bill 375

Read more
published journal article | Mar 2025

Can governments streamline environmental impact analysis to promote transit-oriented development? Evidence from California
Journal of Transport and Land Use

Read more

Job Access, Agency Cost, and VMT Impacts of Offering Microtransit alongside Fixed-route Transit

Status

Complete

Project Timeline

March 1, 2022 - June 14, 2024

Principal Investigator

Michael HylandMichael Hyland

Project Team

Dingtong Yang, Ritun Saha

Sponsor, Program & Award Number

RIMI: RIMI-4I

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

Traditional transit systems that rely exclusively on fixed routes and fixed schedules struggle to provide high quality service to transit-dependent travelers and to attract choice travelers in moderate- to low-density areas. This is especially true in areas where jobs, restaurants, and shopping are not clustered together. Moreover, it is expensive for transit agencies to run services in moderate- and low-density areas. Integrating traditional transit and the more flexible microtransit—multi-passenger transportation services that serve passengers using dynamically generated routes—has been touted as a means to attract riders to public transit, improve mobility and sustainable transportation outcomes and provide better accessibility to more travelers. These integrated services also have the potential to reduce costs incurred by transit agencies and improve mobility equity in underserved communities. However, successful real-world examples of and guidelines for integrating traditional transit and microtransit are relatively limited. This project has two key objectives: (1) to develop network design and operational strategy guidelines for integrating microtransit and transitional transit in low- to moderate-density areas, and (2) to analyze the mobility, accessibility, and equity benefits of integrating transitional transit and microtransit statewide. The project will identify ways that the state can support microtransit integration, blueprints that transit agencies can use to implement microtransit, and metrics for tracking how well microtransit services are helping California achieve climate, equity, and mobility and accessibility goals.

Related Publications

policy brief | Aug 2024

Job Access, Agency Cost, and VMT Impacts of Offering Microtransit alongside Fixed-route Transit

Read more
Preprint Journal Article | Jan 2024

Flexible Agent-based Modeling Framework to Evaluate Integrated Microtransit and Fixed-route Transit Designs: Mode Choice, Supernetworks, and Fleet Simulation

Read more
policy brief | Aug 2024

Job Access, Agency Cost, and VMT Impacts of Offering Microtransit alongside Fixed-route Transit

Read more

California’s Zero-Emission Truck Goals and Policies: Implications for Small Drayage Fleets

Status

Complete

Project Timeline

April 1, 2022 - June 30, 2024

Principal Investigator

Stephen Ritchie

Project Team

Youngeun Bae, Craig Rindt

Sponsor, Program & Award Number

RIMI: RIMI-3E

Areas of Expertise

Freight, Logistics, & Supply Chain Zero-Emission Vehicles & Low-Carbon Fuels

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

California has established aggressive goals to transition medium- and heavy-duty vehicle (HDV) fleets to zero-emission vehicles (ZEVs). There is limited understanding of how HDV fleets will respond to these goals and policies, and there is even greater uncertainty around how one segment of the HDV fleet population will manage: small fleets. Small fleets, including owner operators and small motor carriers such as those with 20 or fewer vehicles, tend to lack knowledge and understanding of state policy. Furthermore, they account for a considerable portion of the fleet population, over 65% in the California drayage industry. Consequently, disruptions to this segment that result from ZEV goals and policies would seriously impact overall freight operations. Therefore, it is critical to understand how small fleets, especially small drayage fleets, will respond to the policies and move to adopt ZEVs. No two small fleets are alike; they operate in diverse applications and have unique needs. For this reason, researchers will conduct either one-on-one interviews or focus groups with approximately 20 operators of small and drayage fleets. The qualitative research will explore vehicle adoption processes (e.g., leasing versus purchasing, or truck as a service), motivators and barriers to ZEV adoption, potential impact of policies (e.g., a mandate, or financial incentives) on purchase behavior, and labor issues or concerns. The findings will inform policy options that may ease these fleet operators’ concerns and facilitate ZEV adoption, thereby contributing to achieving California’s heavy-duty ZEV targets.

Related Publications

conference paper | Jan 2025

Small and Large Fleet Perceptions on Zero-Emission Trucks and Policies
Proceedings, 104th Annual Meeting of the Transportation Research Board

Read more
policy brief | Jan 2025

Navigating the Shift: Critical Insights of California Fleet Operators into Zero-Emission Technologies

Read more
Preprint Journal Article | Jan 2025

Small and Large Fleet Perceptions on Zero-emission Trucks and Policies

Read more
published journal article | Apr 2024

Fleet operator perspectives on alternative fuels for heavy-duty vehicles
Transport Policy

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Pilot Study: Use of High-Resolution Satellite Data to Identify Truck Traffic On the Roads and Near Warehouses Across Multiple Regions in Southern California

Status

Complete

Project Timeline

July 22, 2022 - June 30, 2024

Principal Investigator

Jun Wu

Project Team

Xingwei Liu

Sponsor, Program & Award Number

RIMI: RIMI-5I
(Also see the UC ITS page)

Areas of Expertise

Freight, Logistics, & Supply Chain Intelligent Transportation Systems, Emerging Technologies, & Big Data

Team Departmental Affiliations

Computer Science, School of Public Health

Project Summary

Heavy-duty trucks produce more non-tailpipe emissions, diesel exhaust, and noise than smaller vehicles, so when they travel on surface streets near residents, they can contribute to air quality- and noise-related impacts in these communities. However, heavy-duty truck counts are only available on freeways and highways, making it difficult for communities to understand their risks and provide evidence for truck rerouting as cumulative impacts mount. This pilot project will use high resolution satellite imagery and machine learning methods to detect heavy-duty trucks on all streets in areas with a high density of warehouses in Southern California. The researchers will also examine population characteristics in relation to density of heavy-duty trucks and identify the subpopulations that are mostly affected.

Related Publications

policy brief | Mar 2025

New Insights from Satellite Data Show the Impact Trucks are Having on Communities in Southern California

Read more
published journal article | Jan 2024

A Deep-Learning Approach to Detect and Classify Heavy-Duty Trucks in Satellite Images
IEEE Transactions on Intelligent Transportation Systems

Read more

Agency Participation in the California Integrated Travel Program

Status

Complete

Project Timeline

August 1, 2022 - June 30, 2024

Principal Investigator

Jean-Daniel Saphores

Sponsor, Program & Award Number

RIMI: RIMI-4J

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

The California Integrated Travel Program (Cal-ITP) aims to introduce open payments across all of California’s public transit systems, enabling passengers to use any means of payment readily available to them and reducing or eliminating dependence on cash payments or specialized fare cards. Potential means of payment include credit cards, mobile phone apps or digital wallets, and prepaid debit cards. This shift will allow greater flexibility for passengers and transit agencies alike. This fare payment system will be supported by the implementation of General Transit Feed Specification (GTFS) – a data sharing protocol – across all transit agencies as well as GTFS Real Time, which allows passengers to find routes and schedules with tools such as Google and the Transit App and to track vehicle locations in real- time. While this effort is led by the state, with key activities carried out by the California Department of Transportation and the California State Transportation Agency, the full execution of Cal-ITP depends on each transit agency’s participation, which is voluntary at this time. Cal-ITP’s challenge will be to help the hundreds of California transit agencies of different sizes, capabilities, and diverse services transition to a coordinated fare payment system. This study will identify the tools and assistance that transit agencies will need to participate in Cal-ITP. The researchers, with support from the California Transit Association (CTA), will conduct a survey of California transit agencies to assess their knowledge of Cal-ITP, their understanding of the challenges of participating in Cal-ITP, and their awareness of assistance offered by the program. In addition, information will be gathered about agency characteristics related to their interest in Cal-ITP, capacity to participate, and attitudes about open payment systems.

Related Publications

policy brief | Sep 2025

Capacity Building is Key for Accelerating Open-loop Payments Adoption Among Transit Agencies

Read more

Connecting Telework, Travel Behavior, and System Performance During the COVID-19 Pandemic

Status

Complete

Project Timeline

November 16, 2022 - June 30, 2024

Principal Investigator

Michael McNally

Project Team

Rezwana Rafiq, Chenying Qin

Sponsor, Program & Award Number

RIMI: RIMI-4L-03

Areas of Expertise

Infrastructure Delivery, Operations, & Resilience Travel Behavior, Land Use, & the Built Environment

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

The COVID-19 pandemic and the imposed social distancing measures led many workers to adopt telecommuting—working from home—arrangements on a large scale. The massive changes in work activity may have long-term impacts on domestic and travel behavior, including how people organize their work, where that work is performed, how activities and travel are scheduled, and what travel mode is used. Telework has been touted as a potentially effective travel demand management strategy as well as an environmental management tool for reducing travel and greenhouse gas emissions under Senate Bill 375. The COVID-19 pandemic and associated travel restrictions, despite creating immense disruption to people's lives, also offered an opportunity to experience how telework policies and practices can affect daily travel, should it remain a significant part of the work landscape. This study considers how telecommuters have responded to the changes in activity-travel scheduling and time allocation. In particular, it considers how workers utilized time during the pandemic by comparing workers who telecommuted with workers who continued to commute. Commuters were segmented into those who worked in telecommutable jobs (potential telecommuters) and those who did not (commuters). Findings from this work suggest that telecommuters exhibited distinct activity participation and time use patterns from the commuter groups. This study also supports the basic hypothesis that telecommuters were more engaged with in-home versus out-of-home activity compared to potential telecommuters and commuters. In terms of activity time-use, telecommuters spent less time on work activity but more time on caring for household members, household chores, eating, socializing and recreation activities than their counterparts. During weekdays, a majority of telecommuters did not travel and in general this group made fewer trips per day compared to the other two groups. Compared to telecommuters, potential telecommuters made more trips on both weekdays and weekends while non-telecommutable workers made more trips only on weekdays. The findings of this study provide initial insights on time-use and the associated activity-travel behavior of both telecommuter and commuter groups during the pandemic.

Related Publications

working paper | Jul 2024

A Comparison of Time-use for Telecommuters, Potential Telecommuters, and Commuters during the COVID-19 Pandemic

Read more

A Delphi Study of Technology and Policy Implications of RIMI Research on Public Transit and Shared Mobility

Status

In Progress

Project Timeline

February 5, 2022 - December 31, 2024

Principal Investigator

Michael McNally

Sponsor, Program & Award Number

RIMI: RIMI-4C

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

There is a need to assess the potential impacts of various technology and policy options for the Public Transit and Shared Mobility Pillar of the Resilient and Innovative Mobility Initiative (RIMI). One means to accomplish this is by conducting a Delphi study. A Delphi study is a sequential survey of experts where both the results and assessments of preliminary research are surveyed, collated, and assessed, and then recirculated to the same experts to allow them to update their responses given the responses and rationales of other participants. The logic is that forecasts from a structured panel are more accurate than those from unstructured groups. It is an iterative, anonymous approach that combines results from one iteration and feeds them back to the Delphi panel, in the process potentially eliminating outlying opinions. The iterations continue until a predefined criterion is met, typically a set number of iterations or achievement of consensus. The Delphi method was developed by the RAND Corporation in the 1950s to forecast the impacts of new technologies. As such, it is quite appropriate to assess the effectiveness of proposed policy options to critical problems facing California. This project will conduct a Delphi study with a panel consisting of the Principal Investigators of selected RIMI projects and associated statewide stakeholders. The tradeoff between panel size and the objective to achieve consensus will dictate the number of participants on the panel and the number of iterations. The data collected will not be limited to opinions from the participants but the researchers will also survey and provide participants with the results of research on current and proposed policies. Thus, for example, a participant’s initial assessment of the relative performance potential of a policy to address a particular problem may change after feedback from other participants (note that all panel members will be anonymous to other participants). The panel will include project stakeholders so the analysis results will reflect both research results as well as practical perspectives.

A Review of Data Systems to Track Zero-Emission Truck Adoption and Suggestions for Future Improvements

Status

Complete

Project Timeline

March 1, 2022 - January 31, 2025

Principal Investigator

Stephen Ritchie

Project Team

Craig Rindt

Sponsor, Program & Award Number

RIMI: RIMI-3D
(Subcontract to ITS-Davis)
(Also see this project page)

Areas of Expertise

Freight, Logistics, & Supply Chain Zero-Emission Vehicles & Low-Carbon Fuels

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

California’s Advanced Clean Trucks (ACT) regulation requires original equipment manufacturers (OEMs) to manufacture zero emission vehicle (ZEV) trucks at an aggressive pace. The supporting regulation, the Advanced Clean Fleets (ACF) rule, is in development and will require fleets to purchase ZEV trucks in rapidly increasing numbers starting in 2024. OEMs and fleets will depend on each other to either supply or purchase ZEV trucks in order to meet the regulations. Furthermore, the production and purchases must match across a wide range of truck applications including drayage, short haul, delivery, heavy-duty pickups and vans, and vocational vehicles. Because fleets cannot operate ZEV trucks without appropriate infrastructure in place, electric utilities and hydrogen providers must work with OEMs and fleets to ensure that charging and hydrogen infrastructure is sited, installed, and operational by the time ZEV trucks are delivered to fleets. How will these two regulations stay on track? Will refueling infrastructure be installed at the pace and in the locations needed to support the regulations? Will there be a sufficient supply of ZEV truck models, and will production capacity in key market segments meet the requirements of fleets? Will appropriate incentives or other funding sources for both fleet truck purchase and infrastructure installation exist to ensure that ZEV market penetration proceeds on schedule? This project will develop a system to determine whether the ACT and ACF regulations are on track, and if not, what additional policies could enable ZEV market penetration to proceed on schedule. Researchers will work with agency staff, truck OEMs, fleets, and utilities to ascertain the best metrics for tracking ZEV market penetration including infrastructure rollout. Once metrics are defined, researchers will determine how best to collect and analyze data relevant to these metrics such that problems can be clearly identified. A database will be designed to store these data. Given that ZEV market penetration based on the ACT and ACF regulations will proceed for many years, this project will also develop a proposal for future funding and management of the tracking system.

Related Publications

research report | Jul 2025

A Review of Data Systems to Track Zero-Emission Truck Adoption and Suggestions for Future Improvements

Read more

Enhancing Student Outcomes While Strengthening Transit: An Analysis of LA Metro’s GoPass Fareless Pilot

Status

Complete

Project Timeline

September 1, 2022 - March 31, 2025

Principal Investigator

Jean-Daniel Saphores

Project Team

Farzana Khatun

Sponsor, Program & Award Number

RIMI: RIMI-4P

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Team Departmental Affiliation

Civil and Environmental Engineering

Project Summary

Many California students rely on public transit to travel to and from school. For low-income families, even low transit fares can be economically burdensome, leading some students to skip school or abstain from extra-curricular activities. Some school districts have partnered with transit agencies to offer free transit passes in an effort to help students overcome these obstacles, but few of these programs have been rigorously analyzed, either for their impacts on educational achievements or for their impacts on transit. This study will characterize the users of LA Metro's K-14 free transit pass program – the largest ever such program in the U.S. – and analyze users’ travel patterns (e.g., mode of transport to and from school, after school trips, trip purposes). Understanding the ridership impacts of free transit pass programs for K-14 students is essential for promoting educational and transportation equity. It is also critical for transit it attempts to recover from the drop in ridership caused by the COVID-19 pandemic.

Exploring Opportunities to Improve Transit Access to Community Resilience Centers for Safety and Evacuation Planning

Status

Complete

Project Timeline

September 25, 2023 - March 31, 2025

Principal Investigator

Elisa Borowski

Project Team

Jeannine Pearce

Sponsor, Program & Award Number

RIMI: 2024-31-4T
(Also see the UC ITS page)

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Team Departmental Affiliations

Civil and Environmental Engineering, Urban Planning and Public Policy

Project Summary

Community Resilience Centers and other social infrastructure programs merge community-based support with disruption response to connect individuals to needed resources. Currently, California’s Strategic Growth Council and Department of Food and Agriculture are leading efforts to create neighborhood-level Community Resilience Centers that provide year-round services and emergency resources. Considering the potential of these centers to enhance resilience and safety for historically marginalized individuals, it is critical for public sector decision-makers to understand their functions and impacts and to proactively improve transit integration and the flow of information about them and their services to the public. In collaboration with Climate Resolve, this project examines the functions and impacts of Community Resilience Centers on traveler decision-making in both standard and extreme event situations. The research process, developed in partnership with Climate Resolve, prioritizes the perspectives of historically marginalized populations, particularly those at the intersections of multiple marginalized identities, such as Black, Indigenous, People of Color (BIPOC), and low-income communities. Initial planning meetings were conducted with Climate Resolve and LA Metro, and listening sessions with historically marginalized groups took place with the Boyle Heights Arts Conservatory – one of LA’s first official resilience centers. These sessions were co-facilitated by community partners with a focus on identifying community members’ mobility and resource access experiences during standard and extreme event scenarios. The research findings will be shared with project partners Climate Resolve and LA Metro to inform future developments of transit-integrated social infrastructure programs and to enhance coordination between Community Resilience Centers and transit agencies in other communities across California.

Related Publications

research report | Jan 2025

Reimagining Transportation as a Social Service to Build Resilience and Support Community Power

Read more
policy brief | Jan 2025

Evaluating Equity in Transportation and Hazard Preparedness Plans: A Multi-Level Governance Approach

Read more
policy brief | Jan 2025

Resilience Hubs are a Community Resilience Strategy That Should be Better Integrated Into Los Angeles’ Public Transit System

Read more
Preprint Journal Article | Apr 2025

Beyond Infrastructure: Patterns of Environmental Justice and Multi-Level Governance in Greater Los Angeles Transportation and Hazard Planning

Read more
presentation | Mar 2025

Equity in Transportation Resilience

Read more

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