research report

Sources of and Gaps in Data for Understanding Public Transit Ridership

Abstract

This report presents and reviews the available sources of data on public transit riders and ridership. The research team intends it to be a resource for those who manage or simply wish to understand U.S. transit. In conducting this review, the team considers the advantages and disadvantages of publicly available data on transit from a variety of public and private sources. The research team also considers as well the relatively scarcer and less available sources of data on other providers of shared mobility, like ride-hail services, that compete with and complement public transit, as well as pieces the team sees as missing from the transit analytics pie. The research paper concludes by discussing how data gaps both align with existing inequities and enable them to continue, unmeasured, and how the COVID-19 pandemic has made closing these gaps all the more important.

research report

Future of Public Transit and Shared Mobility: Scenario Planning for COVID-19 Recovery

Abstract

In 2020, the novel coronavirus (COVID-19) pandemic enveloped the world, leading to a public health crisis that profoundly changed all aspects of society, especially multiple sectors of transportation such as public transit and shared mobility. With so much uncertainty about the future of travel, the transportation sector needs to move rapidly to shape the nature of public transit and shared mobility services during the COVID-19 recovery period. Consequently, the University of California Institute of Transportation Studies (UC ITS) and the Transportation Research Board’s (TRB) Executive Committee launched a scenario planning exercise from June to September 2020 involving 36 transportation experts. The exercise resulted in a series of policy options and research directions across three timeframes (i.e., within 12 months, one to three years, and four to six years) that could guide the recovery of the public transit and shared mobility industries. This report offers several key takeaways. First, external forces beyond COVID-19 (e.g., economy, political will, etc.) will significantly drive the future of public transit and shared mobility and determine the effectiveness and feasibility of any policy strategies. Second, while public transit and shared mobility face a dire future in the short run, steps can be taken immediately to reduce the effects of the current crisis, while also laying the groundwork for more sustainable transportation in the future beyond COVID-19. Actions taken to only address the current crisis will not prepare public transit and shared mobility for the future. Finally, future policies and actions will not be effective without in-depth analysis and development. Research and lessons learned from demonstration and pilot projects will be critical for crafting policies, identifying all positive and negative outcomes, and shaping actions toward a future transportation system that is more resilient, socially equitable, and environmentally friendly.

policy brief

Affordable Housing Residents in San Diego County Are Generally Satisfied With Transit Service, but There is Room for Improvement

Abstract

The State of California has increasingly considered the housing and environmental crises together by encouraging affordable housing development in transit rich areas. As such, municipalities are encouraging the creation of affordable housing near transit lines and metropolitan planning organizations are being called on to preserve transit-accessible affordable housing at the regional level. While much effort has gone into advocating for affordable housing in transit rich areas, research has yet to evaluate the experience of low-income residents at such sites. In turn, we surveyed 192 residents at six affordable housing sites geographically spread throughout San Diego County to understand their transportation experiences. All the developments were 100 percent affordable, contained at least 50 units, and provided both multifamily and senior housing.

policy brief

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

Abstract

California is committed to transitioning heavy-duty vehicles (HDVs) from diesel to zero-emission vehicles (ZEVs) like battery electric vehicles (BEVs) or hydrogen fuel cell electric vehicles (HFCEVs) by 2045, and in certain cases much sooner. Achieving this goal requires substantial efforts from various sectors, including vehicle manufacturers, infrastructure developers, and governments. It is particularly important to understand the perspectives of HDV fleet operators, as their viewpoints and willingness to adopt ZEVs will be critical to California’s success in this transition.
To better understand the perspective of fleet operators, we conducted in-depth interviews with 18 California HDV fleet operators, across various sectors and fleet sizes, on the viability of zero-emission fuels and vehicles over the next 10 to 20 years and the main motivators for, and barriers to, procuring ZEVs.

policy brief

Robo-Taxis Are Likely to Increase Job Accessibility, Especially Among Low-Income Households

Abstract

After years of research and development, companies are now operating fully driverless shared-use automated vehicle-enabled mobility services (SAMS) or “robo-taxis“ in Arizona and California. SAMS offer several potential benefits to travelers and society including reducing vehicle ownership, parking demand, congestion, crashes, energy consumption, and emissions, as well as increasing roadway capacity, mobility, and accessibility. Moreover, previous research by our team found that SAMS can provide significant job accessibility benefits to workers in California. To better understand the equity implications of the job accessibility benefits from SAMS, we analyzed the distribution of SAMS benefits across different segments of the population (e.g., low- vs. high-income, young vs. old).
To measure the accessibility benefits of SAMS, we use the logsum of a hierarchical work destination and commute mode choice model—a monetary measure of consumer surplus consistent with microeconomic and utility maximization theories. If a new commute mode (e.g., SAMS) is made available to travelers, and that new mode is competitive with existing modes in terms of travel time and travel cost, then the new mode will improve a traveler’s job accessibility. For more information, please see our previous study on measuring the job access benefits of SAMS2.

policy brief

Who Benefits the Most from the California High-Speed Rail Project?

Abstract

The California High-Speed Rail (HSR) project stands to significantly change transportation across the state, but questions remain about who will benefit most from this massive infrastructure investment. This brief presents a more nuanced understanding of the travel benefits (e.g., quicker and sometimes cheaper transportation) and wider economic benefits (e.g., higher wages and land values stemming from greater concentration of employment) are distributed across California regions and socioeconomic and income groups. By understanding the potential disparities in the impact of the HSR project, policymakers can develop complementary policies to promote more balanced economic development across regions in the state.

policy brief

The First Phase of California’s High-Speed Rail Project Provides the Greatest Economic Benefits Compared to Full Build Out

Abstract

The California High-Speed Rail (HSR) project aims to transform transportation in the state. To understand the impact of this project as it “rolls out” across the state, this brief summarizes findings and insights from an analysis of HSR’s economic benefits across each of its planned phases. The analysis is based on a spatial economic model of the rail system model previously developed by members of the research team. This model captures the direct potential travel benefits, such as quicker and sometimes cheaper transportation, and wider economic benefits, such as higher wages and land values stemming from greater concentration of employment.

website

Trip Referral Portal for Accessible Transportation in Contra Costa County

Abstract

A directory website for accessible transit services is an online platform that aggregates and organizes information about various transportation options available within the designed area, with a prototyped function of recommending service providers.

policy brief

Justice-Centered Mapping Tools for Selecting Electric Vehicle Charger Locations

Abstract

Millions of electric vehicles are expected on American roads in the coming decade. California alone will require over two million publicly accessible chargers to support over 15 million electric vehicles by 2035, and nationwide over 28 million total chargers will be needed by 2030. To assist local agencies and community stakeholders with identifying high-priority investment zones for charging infrastructure, a research team at UC Berkeley, developed a public, open-access platform to inform equity-oriented electric vehicle infrastructure decision-making. As part of this work, the team analyzed existing research, electric vehicle and mobility plans, and obtained input from California local and state government program leaders to gather data across four core categories: equity, transportation infrastructure, grid infrastructure, and community resources.

published journal article

Decisions & Distance: The Relationship Between Child Care Access and Child Care Travel

Publication Date

November 27, 2023

Author(s)

Evelyn Blumenberg, Madeline Wander, Zhiyuan Yao

Abstract

In the U.S., child care supply has long fallen short of demand, with variations across neighborhoods that differ by income, race, and ethnicity. Yet there is relatively little research on child care access, use, and travel. This study tests the relationship between formal child care supply and households’ use of formal care and home-to-child-care travel distances in California. Using a two-step floating catchment area method, the study develops a time-weighted spatial measure of child care access and apply this measure in statistical models to predict two outcome measures: the likelihood of making a home-to-child-care trip and travel distance to the child care center, controlling for other factors. Key findings are that child care access is associated with an increased likelihood of using formal child care—and among households that use such care, access is associated with shorter travel distances. The analysis underscores the importance of policies to address spatial barriers to child care, particularly in neighborhoods—low-income, Latinx, non-urban—where child care supply is limited.