published journal article

Three’s a Crowd? Examining Evolving Public Transit Crowding Standards Amidst the COVID-19 Pandemic

Abstract

The COVID-19 pandemic dramatically affected public transit systems around the globe. Because transit systems typically move many people closely together on buses and trains, public health guidance demanded that riders should keep a distance of about two meters to others changed the definition of “crowding” on transit in 2020. Accordingly, this research examines how U.S. public transit agencies responded to public health guidance that directly conflicted with their business model. To do this, we examined published crowding standards before the COVID-19 pandemic for a representative sample of 200 transit systems, including whether they started or changed their published standards during the pandemic, as well as the reasons whether agencies publicize such standards at all. We present both descriptive statistics and regression model results to shed light on the factors associated with agency crowding standards. We find that 56% of the agencies surveyed published crowding standards before the pandemic, while only 46% published COVID-19-specific crowding standards. Regression analyses suggest that larger agencies were more likely to publish crowding standards before and during the COVID-19 pandemic, likely because they are more apt to experience crowding. Pandemic-specific crowding standards, by contrast, were associated with a more complex set of factors. We conclude that the relative lack of pandemic standards reflects the uncertainty and fluidity of the public health crisis, inconsistent and at times conflicting with the guidance from public health officials, and, in the U.S., a lack national or transit industry consensus on appropriate crowding standards during the first year of the pandemic.

policy brief

Young Adults Aren’t Leaving Home, Socializing, or Traveling as Much Post-Pandemic

Publication Date

March 1, 2025

Author(s)

Andy Fung, Fariba Siddiq, Yu Hong Hwang, Brian D. Taylor

Abstract

During the COVID-19 pandemic, daily travel per person declined significantly in the U.S as activities that required leaving home were increasingly replaced by information and communication technologies (ICTs), such as smartphones, personal computers, streaming services, and social media. Trips for most purposes declined drastically in the spring of 2020 at the start of the pandemic, and public transit use in particular plummeted. With most of the disruptions of the pandemic over by early 2022, this research study investigated whether the travel effects of COVID-19 have persisted, especially among young adults (defined as those between the ages 15-29).

The research focused on youth, as any long-term shifts in their travel behavior might persist for decades. These younger travelers are transitioning to adulthood by obtaining drivers’ licenses, joining the workforce, living independently, and so on. Youth travel may be affected differently by the pandemic than older adults as they are more likely to substitute ICTs for travel, so the study examined how youth travel patterns and trends compare to those of middle-aged adults post-pandemic.

other

Changes in Metropolitan Transit Supply

research report

Assessing the Charging-as-a-Service (CaaS) Model for EV Charging Deployment in California

Abstract

Charging-as-a-Service (CaaS) is an innovative electric vehicle (EV) charging station model that allows customers access to EV chargers through a contract with a provider responsible for design, deployment, operations, and maintenance. Little is known about the motivations and experiences of stakeholders involved in CaaS operations, including providers, electric utilities, and customers. A grey literature review identified CaaS services, provider-described benefits, and utility-provided CaaS and charging services. Then, semi-structured interviews were conducted with 13 stakeholders to identify critical themes on interactions between stakeholders and the perceptions, challenges, and opportunities of the CaaS business model in addressing charging station needs in California. CaaS may have structural benefits to customer-owned chargers and could improve charger reliability, provide scalable solutions, and reduce customer fatigue with EV charging deployment. However, CaaS faces the same challenges present in the broader charging industry. The findings in this study can guide policymakers in supporting maintenance-related workforce development and streamlining and crafting EV charging infrastructure-informed subsidy programs. Additionally, stakeholders recommend municipal-led EV infrastructure planning and funding for chargers in disadvantaged communities. These interviews clarify the role of CaaS within the EV charging industry and confirm the need for engaged policymaker support to clear roadblocks, support investment, and educate customers about decision-making, which benefits all EV charging stakeholders.

research report

After the Crash: Post-Collision Travel Behavior and Safety Perceptions

Abstract

Post-collision travel behavior and effects on road safety perception are not well-understood. To quantify the ways that crash-related experiences shape the way individuals think about travel, we conducted four focus group discussions with people who had been involved in a crash or near miss or whose relatives or friends experienced one. Several themes emerged from the discussions. Participants changed their travel behavior after experiencing a collision by modifying their travel mode, travel frequency, trip purposes, or vehicle types. Participants developed an enhanced awareness about potentially unsafe behaviors of other road users and road environments and adopted more cautious attitudes toward their own travel. Many participants experienced long-term stress as a result of the incidents, including fear, behavior modification, or travel avoidance. Participants offered several recommendations, including the need for safer infrastructure, improved road user visibility, a shift in media narratives, educational programs, and policy changes focused on land use and transportation synergies.

policy brief

Americans are Spending More Time at Home and Traveling Less Post-Pandemic

Publication Date

March 1, 2025

Author(s)

Samuel Speroni, Brian D. Taylor

Abstract

The COVID-19 pandemic accelerated an ongoing trend of Americans spending more time at home and less time engaged in activities away from home. This shift in travel behavior has significant implications for cities, transportation systems, economics, and even mental health. To better understand this trend, this research project examined how people in the U.S. spend their time pre-pandemic, mid-pandemic, and post-pandemic using data from the American Time Use Survey, with a focus on work, leisure, and travel behavior.

policy brief

How Are Low-Income Older Adults Traveling, and What Barriers Do They Face? A Case Study from San Diego

Publication Date

March 1, 2025

Author(s)

Jennifer Nations, Josh Newton, Haven Lo

Abstract

Sixteen percent of adults aged 62 and over in California live in poverty. Older adults also make up a large share of the state’s homeless population, primarily because low-income seniors on fixed incomes are being priced out of housing. These trends are especially concerning as California’s population continues to age. Understanding how housing affordability and access to transportation affect older adults is vital to supporting healthy aging.

The research team surveyed the transportation needs and behaviors of 89 senior affordable housing residents at six sites in San Diego County. These sites varied by county region, public transit proximity, and neighborhood density. Of these respondents, 54 had experienced homelessness and 16 managed chronic health conditions; nearly all were considered very or extremely low-income based on area median income. The research focused on travel for social events and errands since almost none of the respondents worked or attended school.

op-ed

America is becoming a nation of homebodies

Publication Date

March 10, 2025

Author(s)

Brian D. Taylor, Samuel Speroni

Abstract

The COVID-19 pandemic did spur more Americans to stay home. But this trend didn’t start or end with the pandemic. Research found that Americans were already spending more and more time at home and less and less time engaged in activities away from home stretching all the way back to at least 2003.