policy brief

Policy Considerations for Advancing Bidirectional Electric Vehicle Charging in California

Areas of Expertise

Zero-Emission Vehicles & Low-Carbon Fuels

Abstract

Electric vehicles (EVs) are proliferating rapidly in California, with now over 1.8 million operating in the state. Battery charging loads can stress local electricity distribution feeders, particularly in the early evening when power use typically peaks. Many EVs now, and many more in the future will have bidirectional or vehicle-to-grid (V2G) capability, meaning their large battery packs can be discharged for a variety of uses—from providing backup power to homes and businesses to providing a larger set of grid services including supporting local voltages and 60 Hertz cycle frequency. This brief provides an overview of bidirectional charging and policy considerations for supporting its increased use.

policy brief

Developing a Hydrogen Vehicle Market in California Will Require Significant Upfront Investment, but Should be Self-Sustaining Thereafter

Areas of Expertise

Zero-Emission Vehicles & Low-Carbon Fuels

Abstract

While hydrogen fuel-cell electric vehicles (FCEVs) are seen as a part of California’s efforts to decarbonize transportation, especially for the heavy-duty vehicle sector, their role remains unclear. This may change, however, with the launch of the California Alliance for Renewable Clean Energy Hydrogen Energy Systems (ARCHES) developed by the California Governor’s Office of Business and Economic Development (GO-Biz) as a public-private partnership.

This brief highlights results from a UC Davis Hydrogen Program study evaluating the requirements and costs of building a network of hydrogen stations (including delivering hydrogen to those stations), and the costs of purchasing these vehicles, including light-, medium-, and heavy-duty vehicles. Specifically, the brief highlights two scenarios for estimating the level of investment and other costs for building out a hydrogen system to support road transportation (i.e., trucks, cars, buses), and examines how these investments and per-unit hydrogen costs play out over time (with 2030 and 2045 being key years) and across different types of hydrogen system components (e.g., hydrogen delivery systems and stations).

policy brief

Decline of Rail Transit Requires New Strategies

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation Travel Behavior, Land Use, & the Built Environment

Abstract

During the pandemic, California’s four major rail systems— Bay Area Rapid Transit (BART), San Diego Metropolitan Transit System (MTS), Sacramento Regional Transit (SacRT), and Los Angeles County Metropolitan Transportation Authority (LA Metro)—experienced an average ridership decline of 72 percent between 2019 and 2021. BART had the greatest decrease (87 percent) and MTS the lowest (47 percent). However, ridership changes varied significantly across individual stations, with stations located in the central business district or at the end of lines having the highest ridership losses. Land use, development density, and the pedestrian environment are strongly associated with station-level transit ridership. This brief examines how these characteristics affect transit ridership pre- and post-COVID and how they differ across station types based on longitudinal data collected between 2019 and 2021 for 242 rail stations belonging to BART, MTS, SacRT, and LA Metro.

policy brief

What Challenges Can Arise from Coordinating Housing Development with Transportation?

Publication Date

September 1, 2024

Author(s)

Jesus Barajas, Douglas Houston, Jae Hong Kim, Nicholas Marantz, Veronica Herrera, Alex Okashita, Maxwell Cabello

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation Travel Behavior, Land Use, & the Built Environment

Abstract

More systematic coordination between transportation and housing development is increasingly recognized as a promising strategy for creating more sustainable communities. One approach is to encourage higher density affordable housing developments near transit or in similarly transportation-efficient areas, such as locations with low vehicle miles traveled (VMT). However, little is known about how transportation access should be considered in guiding housing development, what challenges can arise from coordinating housing development with transportation, and what the state can do to better deal with these challenges and achieve more equitable residential densification.

This brief examines equity issues and other challenges that may arise in pursuing transportation-informed housing development. Specifically, it touches on the potential impacts of Senate Bill 743, which made it easier to build more housing in low VMT locations by shifting the way traffic impacts from new housing development are evaluated under the California Environmental Quality Act. It also explores ways to achieve more inclusive development in non-rail transit areas which have received less attention compared to rail transit areas.

research report

Assessing the Potential for Densification and VMT Reduction in Areas without Rail Transit Access

Publication Date

September 1, 2024

Author(s)

Jae Hong Kim, Jesus Barajas, Nicholas Marantz, Douglas Houston, Veronica Herrera, Alex Okashita, Maxwell Cabello

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation Travel Behavior, Land Use, & the Built Environment

Abstract

While transportation infrastructure and efficiency should inform where to build more housing, little is known about how housing allocation and development processes can be coordinated more systematically with transportation. To date, transportation-housing coordination has often relied on the densification of areas near rail transit stations, putting heavy burdens on these locations and their residents. Much less attention has been paid to how densification can be achieved in a more equitable manner by encompassing other sites.

This report directs attention to non-rail locations, specifically low vehicle miles traveled (VMT) areas and bus corridors, and examines the challenges that can arise in promoting densification more broadly. It shows that data uncertainties can make it challenging to identify low VMT locations and that prioritizing only low VMT locations for residential development may have limited effectiveness in expanding housing opportunities in high opportunity areas. The report further explores ways to achieve more inclusive densification of non-rail transit areas and highlights the importance of anti-displacement strategies.

research report

Sidewalking: A Toolkit for Engaging Youth in Planning and Designing Urban Mobility Futures

Publication Date

September 27, 2024

Author(s)

Jane Wu, Kay Wright, Emma Fuller-Monk, Dana Cuff, Alexa Vaughn, Julie Wong, Maxwell Kilman, Nils Jepson, Peter Tzuyuan Cheng, Sarah Zureiqat

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Abstract

The Sidewalking toolkit supports youth mobility and youth agency by sharing effective, design-based strategies for engaging young people in envisioning their own mobility futures. This guide was created to help planners, designers, policymakers, and advocates who are already invested in supporting safe, social mobility options for youth, and who are looking for effective strategies to involve young people directly in planning and design decisions regarding their urban mobility.

book/book chapter

Can I Borrow [for] your Car?: Income, Race, and Automobile Debt in California

Publication Date

July 13, 2022

Author(s)

Evelyn Blumenberg, Samuel Speroni, Fariba Siddiq, Jacob Wasserman

Areas of Expertise

Safety, Public Health, & Mobility Justice

Abstract

The COVID-19 crisis elevated the importance of private vehicles. The pandemic drove riders off public transit and spawned additional car-based activities such as drive-through testing and vaccinations and curbside pick-ups. Yet millions of low-income and non-white households do not own vehicles. This book chapter draws on a unique credit panel dataset to examine automobile debt and delinquency in California. In particular, it examines whether automobile debt patterns during the pandemic differed from those during and coming out of the Great Recession (December 2007–June 2009). It also analyzes the response to the COVID-19 recession across neighborhoods by income and race.

The paper finds that the number of automobile loans per borrower declined. While the automobile debt burden (the ratio between total automobile debt and aggregate income) also declined, it fell far less during the pandemic than during the Great Recession. Moreover, automobile loan delinquencies spiked during the Great Recession but instead continued to drop during the pandemic. Finally, the COVID-19 crisis affected consumers differently by both race and income. Automobile debt burden rose in low-income, Latino/a, and Black neighborhoods, a pattern that preceded but continued unabated during the pandemic. The findings suggest that COVID-19 relief may have helped some families manage their automobile-related expenditures. However, other factors, such as increasing automobile prices, likely contributed to growing debt burdens, a potential source of financial distress.

research report

Affordable Housing and Transportation Cost Burdens in San Diego County

Publication Date

September 1, 2024

Author(s)

Jennifer Nations, Mirle Rabinowitz Bussell, Yao Fu, Haven Lo, Feiyang Sun, Josh Newton

Areas of Expertise

Safety, Public Health, & Mobility Justice

Abstract

This report quantifies the cost of daily travel needs for affordable housing residents in San Diego, California, especially seniors aged 62 and older, in two ways. First, it analyzes their trip travel time for the entire San Diego region using activity-based model (ABM) data. Second, it summarizes results from surveys of residents in six affordable housing buildings, three of which provide supportive housing to seniors. Overall, this research finds that affordable housing residents use public transit more often than those who have access to a car. But traveling by public transit takes much longer on public transit than traveling by personal vehicle. Survey respondents under age 62 expressed greater dissatisfaction with the costs of public transit ridership, compared to seniors, and were also more likely to express dissatisfaction if they were working. Seniors were more likely to express dissatisfaction with the conditions of public transit stops.

research report

Rail Transit Ridership Changes in COVID-19: Lessons from Station Area Characteristics

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation Travel Behavior, Land Use, & the Built Environment

Abstract

The COVID-19 pandemic has had a significant impact on public transit ridership in the United States, especially for rail transit. Land use, development density, and the pedestrian environment are strongly associated with station-level transit ridership. This study examines how these characteristics affect transit ridership pre- and post-COVID and how they differ across station types based on longitudinal data for 242 rail stations belonging to Bay Area Rapid Transit, San Diego Metropolitan Transit System, Sacramento Regional Transit, and LA Metro between 2019 and 2021.

The research team found an overall 72% decrease in station-level ridership, but changes were not uniform. Station areas with a higher number of low-income workers and more retail or entertainment jobs tend to have lower ridership declines, while areas with a large number of high-income workers, high-wage jobs, and higher job accessibility by transit had more ridership losses. When comparing station area ridership and activity changes based on mobile phone user data, ridership declined more drastically than activity across all four rail systems, which implies that rail transit riders switched to other modes of transportation when accessing the station areas. Given these findings, it is likely that rail transit services oriented toward commute travel, especially core station areas with jobs for higher-income workers, will continue to have an uneven recovery, posing critical implications for transit resilience planning and equity in the post-pandemic era. Considering sources of funding other than passenger fares to sustain rail transit, strategizing to reinvent and reinforce downtowns as destinations, and shifting rail transit services to appeal to non-commute travel can be promising strategies to support rail transit.

policy brief

Communities Are Experimenting with Microtransit to Fill Critical Gaps in Public Transit Service – What Have We Learned so Far?

Publication Date

September 1, 2024

Author(s)

Susan Shaheen, Elliot Martin, "Brooke (Schmidt) Wolfe ", Adam Cohen

Areas of Expertise

Public Transit, Shared Mobility, & Active Transportation

Abstract

This brief provides an overview of microtransit service as deployed across California. Microtransit is a technology-enabled transit service that typically employs shuttles or vans to provide on-demand transportation with dynamic routing. While many rides are dispatched and paid via a smartphone, many services also provide a telephone booking option. A few services accept cash payment and street hails (similar to taxis). Variations of microtransit can include fixed schedules and routes and larger or smaller vehicles. Typically, microtransit services are operated by or provided on behalfof a government entity or nonprofit organization, although privately operated microtransit programs also might exist.