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.

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.

policy brief

Can Combining Traffic Sensor Data Make Our Roads Safer?

Publication Date

June 1, 2026

Author(s)

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

Abstract

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

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.

policy brief

California Travel Post-Pandemic Has Changed: Are Our Policies Keeping Up?

Abstract

The COVID-19 pandemic fundamentally changed how Californians travel, work, and shop. While overall travel levels have largely recovered, the rise of remote work, online shopping, and more flexible schedules have reshaped when, why, and how people travel. Yet many transportation policies and planning tools still rely on outdated assumptions about travel behavior, creating a growing mismatch between policy and reality, with implications for infrastructure planning, congestion, air pollutant emissions, and more. To better understand these changes, the research team analyzed travel data from 2019 and 2023 across four primary travel modes–driving, public transit, walking, and bicycling. To examine changes in driving and transit, the research team used data from sites around the state for driving and transit use, in addition to data from the Southern California Association of Governments (SCAG) region to analyze walking and biking.

research report

Jaywalking in California: History, Pedestrian Safety Trends, Law Enforcement Patterns, and Decriminalization Legislation

Publication Date

June 1, 2026

Author(s)

Mike Santos, Liza Lutzker, Julia Griswold

Abstract

This report investigates jaywalking laws in connection with traffic safety, racial equity, and street design, focusing on California. It traces the concept of “jaywalking” to an early 20th-century auto industry campaign to shift safety responsibility from drivers to pedestrians. By analyzing national and California pedestrian injury and fatality data (2009–2022) alongside California Racial and Identity Profiling Act (RIPA) police stop data (2018–2022), the study describes demographic disparities in both pedestrian crashes and law enforcement of jaywalking. It also documents recent legislative efforts in California and other states and cities to decriminalize or reform jaywalking enforcement. Findings show that pedestrian fatalities reached a 40 year high in 2022, with California’s rates consistently exceeding the national average. Significant racial and economic disparities exist: Black pedestrians experience fatality rates multiple times those of White pedestrians, and lower-income neighborhoods suffer disproportionately. RIPA data further reveal that jaywalking-related police stops disproportionately affect Black pedestrians. These disparities are likely driven by the built environment—such as wide arterials and sparse crosswalks—which incentivizes mid-block crossings, particularly in under-invested communities. The report also examines California’s Assembly Bill (AB) 2147 (2022), which partially decriminalized jaywalking by limiting enforcement to cases of “immediate hazard.” It concludes by recommending continued monitoring of enforcement and safety data to track AB 2147’s impact, alongside collecting built environment data to better contextualize racial and economic disparities in pedestrian outcomes.

research report

Tools for Demand-Supply Assessment of EV Charging Infrastructure and Strategy Evaluation of Smart Charging

Abstract

California’s transition to electric vehicles (EVs) requires more than additional charger counts. Public charging must be accessible, affordable, and reliable where people actually live and travel. This report presents a geospatial dashboard and time-series toolkit for the nine Bay Area counties that maps public charging stations, tracks price and charging-port status at 10-minute intervals, and identifies disadvantaged community (DAC) census tracts using the joint U.S. Department of Energy/U.S. Department of Transportation/National Electric Vehicle Infrastructure (DOE/DOT/NEVI) framework. The tool reports charger availability, utilization, pricing, reliability, and average session cost, and supports equity metrics such as ports per 1,000 residents or renters, travel time to a direct-current fast charger, and tract-level comparisons between DAC and non-DAC areas. It also supports early screening of sites for Level-3 fast chargers by identifying locations that appear feasible from the grid standpoint. The result is a practical planning tool that allows agencies to monitor conditions continuously without field surveys and to target investments toward areas of greatest need.

white paper

Mobility 10x Summit: Accelerating Transportation Innovation Across California

Abstract

The Mobility 10x Summit convened more than 200 leaders from state agencies, regional governments, academia, and industry to accelerate California’s transition toward a more resilient, equitable, and sustainable transportation system. As the capstone event of the Resilient and Innovative Mobility Initiative (RIMI)—a four‐year UC ITS research effort launched in 2021—the summit synthesized extensive research and practitioner insights across ten priority transportation topics, ranging from public transit to automation and carbon-neutral transportation to equity, safety, and resilience. Across the opening and closing plenary discussions and nine breakout sessions, participants examined the structural challenges facing California’s transportation system: declining gas tax revenues, climate‐driven infrastructure damage, uneven public transit ridership recovery, inequitable access to mobility options, and rapid technological change. These challenges are converging at a moment when California must simultaneously meet ambitious climate goals, modernize its transportation funding model, and ensure that mobility systems work for all communities.

published journal article

The Promise of Universal Basic Mobility

Abstract

Historically, U.S. transportation policy efforts to meet the needs of those facing transportation insecurity focus on public transit supply. However, the provision of public transit alone has largely kept such travellers at a disadvantage in accessing opportunities. A growing number of U.S. agencies have begun to promote the notion of Universal Basic Mobility (UBM), a mode-agnostic concept that emphasises individuals’ right to the mobility sufficient to meet their daily needs. In this review, we draw on the literature on social policy formation, previous transportation policy efforts, and theories of transportation and mobility justice to reflect on UBM and its potential. The research suggests three essential elements: (1) a recognition that mobility, or freedom of movement, is essential for human well-being; (2) the targeting of resources toward those disproportionately suffering from transportation insecurity; and (3) the inclusion of both supply and demand components to enable individuals to take advantage of the transportation services that best meet their travel needs. In so doing, UBM has the potential to avoid the shortcomings of previous transportation policy efforts – in the U.S. and elsewhere – and to significantly improve transportation outcomes for those most in need.