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published journal article

No Car, No Choice: Transportation Resources and School Choice in California

Abstract

School choice offers families an opportunity for children to attend schools other than those they are zoned to by residential location. Most families live beyond walking distance to choice schools, so vehicular transportation is needed to attend. Yet, most choice programs have not been designed with such access in mind, and most school bus programs are designed only for neighborhood schools. Such diminished access for children in households without cars presents an equity issue. This study examines the relationship between household transportation resources—automobiles, transit, and walkability—and the likelihood that children attend a choice school. The research team matches data from the 2017 National Household Travel Survey California Add-On with school characteristics to identify the school each respondent ages 5–17 attends and the school to which school districts zoned them. The team then fit a model that predicts choice of school type: neighborhood zone public, choice public, or private. Controlling for student, household, transportation, neighborhood, and assigned zone school characteristics, a student in a household with at least one vehicle had more than double the predicted probability of attending a choice public school compared with a student in a zero-vehicle household. The difference in predicted probabilities grew for students who were low-income, non-white, or zoned to low-performing schools. Living in neighborhoods with high-quality public transit access or high walkability did not affect the probabilities. These findings underscore the importance of transportation resources in enabling families to send their children to schools that best fit their needs.

policy brief

Revitalizing Downtowns May Help Transit Recovery—But It Won’t Be Enough

Abstract

The COVID-19 pandemic accelerated hybrid and remote work and online shopping. These changes caused a sharp decline in activity and transit use in downtowns across California, particularly in transit-oriented downtowns that account for a large share of statewide ridership. This decline has major implications for climate commitments, equity, and the economy. Public officials and business leaders are pursuing a range of strategies to revitalize downtowns and support transit recovery. However, transit ridership has still not returned to pre-pandemic levels. To support recovery efforts, this research analyzed which measures are most likely to generate substantial and lasting ridership gains in downtowns, focusing on five downtowns in the San Francisco Bay Area—San Francisco, Oakland, Berkeley, San Jose, and Walnut Creek. For each downtown, the research team examined ridership data before and after the pandemic, reviewed how transit agencies responded in terms of adjusting service or other actions, and consulted revitalization plans by cities and business improvement districts. The research team also conducted surveys and interviews with transit riders and city leaders.

policy brief

California Can Improve Access to Electric Vehicle Charging By Incorporating Equity, Price, and Grid Readiness Data

Abstract

As California transitions to electric vehicles (EVs), ensuring equitable access to public charging remains a challenge. While the state and utilities have invested heavily in new charging infrastructure, simply counting stations does not show whether the network is reliable, affordable, and accessible, particularly for vulnerable populations and renters without home charging options. As of March 2025, California had installed about 178,549 public and shared-private chargers, including roughly 17,000 DC fast chargers. The California Energy Commission projects a need for about 1.01 million chargers by 2030 to support 7.5 million zero-emission vehicles. To better understand these dynamics, the research team developed a continuous, census tract-level monitoring system for the nine Bay Area counties that integrates information on charger availability, pricing, reliability, and grid capacity. This framework moves beyond static inventories to provide actionable, decision-grade insights for agencies responsible for EV infrastructure planning.

policy brief

Can California Power Electric Construction Equipment at Scale?

Publication Date

June 1, 2026

Author(s)

Shakib Kafashan, Jean-Daniel Saphores

Abstract

California’s climate policies are accelerating the transition to zero-emission vehicles, but the construction sector faces a major barrier: access to reliable power at job sites. While electric excavators and loaders are entering the market, many construction sites—often temporary and in remote or constrained locations—lack the electrical infrastructure needed to support them. Grid connections are often too costly and take too long to install for construction projects, and existing grid infrastructure was not designed to handle the power demand of heavy machinery. Without practical charging solutions, electrifying the construction sector may lag behind state goals. Meanwhile, construction equipment is contributing 1% to 2% of California’s total greenhouse gas emissions. To better understand these challenges, the research team reviewed existing research, assessed available charging technologies, and spoke with utilities and energy providers across California. The research focuses on identifying key barriers and practical pathways to support construction electrification.

policy brief

Generalized Tools for Evaluating Active Transportation Projects Show Promise—But Project Level Estimates Need Other Support

Abstract

Cities and regions are increasingly investing in walking and bicycling infrastructure, driven by well-documented health, social, and environmental benefits of active transportation. However, most agencies lack practical tools to accurately assess whether these investments are achieving their intended outcomes. Accurately measuring change in walking and bicycling attributable to investments like new bike lanes or sidewalks is difficult and involves resources and expertise that is generally not feasible or financially sustainable for mode agencies. One promising solution is to develop generalized tools agencies can use to estimate project benefits using theory and prior empirical evidence, which reduces the burden of evaluation. To explore the validity of tool-based evaluation this research evaluated two active travel volume estimation approaches using projects in the cities of Santa Barbara and Santa Cruz as case studies.

policy brief

Understanding the Impacts of Telecommuting on Travel Behavior Before, During, and After the Pandemic

Abstract

California set ambitious goals for decarbonizing the transportation sector, including reducing the amount of per capita vehicle travel. This may mean shifting more travel to other modes of travel, such as ride-hailing (i.e., on-demand services such as Uber, Lyft, and taxis) and public transit. To better understand different types of non-automobile travelers, the research team examined the connections between the tour-based travel patterns of public transit and ride-hailing users and their household activities. The team’s analysis used an activity-based approach that considers daily travel patterns using tours and activity patterns as basic units of analysis. The researchers identified different subgroups or “classes” of riders based on the type of trips taken and modes used and then analyzed the socio-demographic composition of each class. All tours considered in the team’s study start and end at home, with at least one trip by ride-hail or transit. Additionally, tours were classified as work or non-work trips, and complex or simple trips.

policy brief

Understanding the Impacts of Telecommuting on Travel Behavior Before, During, and After the Pandemic

Abstract

The COVID-19 pandemic catalyzed a massive and abrupt shift in work arrangements across the United States, with telecommuting (or working from home) becoming a dominant mode for a substantial portion of the workforce. This shift not only disrupted traditional employment structures but also significantly altered daily activity schedules and travel behavior. As policymakers and planners seek strategies to manage travel demand, mitigate congestion, and reduce greenhouse gas emissions, understanding the long-term implications of telecommuting on travel patterns is essential. The pandemic offers a unique opportunity to study these changes at scale and across diverse geographic and demographic groups.

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preprint journal article

Free transit for students to regain ridership: Users and boarding characteristics of LA Metro's GoPass program

Abstract

The Los Angeles County Metropolitan Transportation Authority (LA Metro) started in October 2021 the largest free transit pass program in the U.S. to date. Known as GoPass, it serves students from kindergarten to community colleges in Los Angeles County, the most populated county in the U.S. Although many free transit pass programs have been created, few have been analyzed from the point of view of transit agencies (i.e., for the characteristics of their users and their impact on ridership). To address this gap, the research first examines GoPass’ contribution to LA Metro’s bus boardings, before comparing selected characteristics of the students enrolled in GoPass in 2023 with census data. The research finds some opportunities for additional growth, including for female students. To understand GoPass usage, the research estimated a generalized spatial regression model that explains annual GoPass boardings aggregated by census tract (detailed usage data are unavailable to protect the students’ privacy) using a broad range of socioeconomic and built environment variables. The results confirm the presence of strong spatial effects. The research finds that census tracts with more young males, more transit stops, mixed land use, and more participating schools accessible within 30 min by transit have more GoPass boardings. Conversely, the number of GoPass boardings decreases with more access to private vehicles, property crimes, multifamily units, and a higher population density. A better understanding of the characteristics of GoPass users and GoPass usage is useful to improve GoPass and to inform transit agencies interested in creating similar programs.

policy brief

Transit Finance at a Precipice: Major Policy Changes Are Needed to Stabilize Public Transit Budgets

Publication Date

June 1, 2026

Author(s)

Abstract

Public transit systems in California sit at a financial crossroads. Ridership has recovered slowly and unevenly since the pandemic, with commuter-focused transit services to and from downtowns continuing to struggle the most. While other sources of transit funding such as sales taxes have recovered, fare revenues have not. As one-time federal relief funding is spent down, some transit agencies in California and across the U.S. sit at the edge of a fiscal cliff. To better understand the scale of this challenge and how agencies are responding, researchers at the UC Institute of Transportation Studies analyzed financial data from transit agencies, examined federal databases, and conducted surveys and interviews with agency staff. This work provides a clearer picture of current conditions and the strategies agencies are considering to stabilize their budgets.

research report

Exploring Sensor Threats and Vulnerabilities in Intelligent Traffic Controllers

Publication Date

June 1, 2026

Author(s)

Mohammad Abdullah Al Faruque, Yasamin Moghaddas, Avinash Kadiyala, Mohamad Habib Fakih

Abstract

This study highlights that Inductive Loop Detectors (ILDs), sensors embedded into the pavement for traffic control, are concerningly vulnerable to novel cyber and physical attacks.