Understanding and Innovating Transportation Access to Education: A Study of K-12 Student Transportation in California

Status

Complete

Project Timeline

June 29, 2022 - March 31, 2025

Principal Investigator

Project Team

Tierra Bills, Jesus M. Barajas, Samuel Speroni, Katherine Turner

Campus(es)

UC Davis, UCLA

Project Summary

School choice is the process of allowing families to choose the K-12 educational options that best fit the needs of their children. Proponents of school choice contend that it provides alternatives to traditional public schools for children who have poor educational options in their neighborhoods and/or for children with other special needs and/or interests. In contrast, critics argue that spending public funds to support choice schools undermines the traditional public school system, which educates the majority of California’s children. Despite the ongoing debate over the merits of school choice, in California families have a growing number of school choice options. As of 2020-21, about 25 percent of K-12 students in California attended a charter, magnet, and/or private school. While the percentage of students attending private schools has declined over time, public school choice options have grown. Families need transportation to both find and regularly attend a school located outside of their local attendance zone. Yet, most choice programs have not been designed with access to schools in mind, and California does not require charter schools to even consider transportation in initial applications. A high percentage of low-income families (one third in Denver, Colorado, and Washington, DC) report that they would send their child to a better school located further from their home if they had adequate transportation. However, many low-income families do not have adequate transportation. They are less likely than higher-income households to have reliable access to an automobile. Moreover, outside of very large, transit-rich cities, public transit has difficulty serving the school trip and this can have negative consequences for student academic outcomes. Finally, research shows that school bus eligibility is associated with a higher likelihood of selecting a choice school and decreased rates of absenteeism. Yet the share of students with access to district-provided transportation has declined over time: as of 2009 only one in eight California students is bused to school, one-third the national average. Very little of this research centers on California, despite the fact that state policy differs from most other states. To better understand disparities in access to high-quality schools and to inform school transportation policy, the researchers will draw on multiple statewide data sources and analyze the relationship between transportation and school choice in California. They will test whether students with access to transportation resources—either personal or public—are more likely to attend a school that is located outside of the student’s neighborhood attendance zone. Transportation resources to be considered will include (a) the availability of household vehicles, (b) residential location in dense urban areas where students may be more likely to travel to schools by public transit relative to other neighborhoods, and (c) public expenditures on school transportation.

Pathways to Autonomy: Supporting Youth Independent Mobility in Westlake, Los Angeles

Status

Complete

Project Timeline

September 22, 2022 - October 31, 2023

Principal Investigator

Campus(es)

UCLA

Project Summary

Inner-city youth often walk to school and are likely to encounter unsafe streets with higher proportions of pedestrian-automobile crashes. Despite Vision Zero and Safe Routes to School programs, they remain disproportionately represented among traffic fatalities, which are the highest in a decade. But the idea of safe streets goes beyond pedestrian-traffic relationships. As one study of inner-city fifth graders in Los Angeles found, “dangers in their social milieu are a much greater concern for them than the physical milieu, which the walkability research typically emphasizes.” These social dangers influence youth’s choice to frequent traffic-heavy streets like those included in Vision Zero’s high-injury network, as these arterials are perceived safer for walking than more quiet but desolate residential streets. Thus, youth’s urban paths to and from school are informed by “hot spots” (where crime and crash data indicate danger) as well as “safe spots” (where data indicate safety from crime). Therefore, enhancing safety among inner-city youth requires attention to both physical and social relationships. The researchers will work with youth (aged 12-15) to study their journey from school to after school activities in the LA neighborhood of Westlake. This neighborhood falls within the city’s high injury network as defined by the Los Angeles Department of Transportation (LADOT) Vision Zero Plan and includes two Safe Route to School areas. The researchers have built strong community partnerships over a two-decade long history of working in this neighborhood. While their preliminary work with youth in Westlake has found traffic speed to be a top concern among middle-schoolers, youth also carry mental maps of local “sidewalk ecologies” that include bus stops, lighting, social activity, shade, unhoused residents, and vendors, among other factors that shape their routes. This concept of “sidewalk ecology” will be used to emphasize the interaction of both positively and negatively perceived social and physical features that affect mobility. Together with their community partner, the HOLA after-school program, the researchers will prepare walking audits, perform cognitive mapping, document sidewalk ecologies, and conduct follow-up youth interviews. The research will be supported by LADOT pedestrian safety data serving as reference points in mapping the varied routes taken by study participants. By thoroughly documenting and interpretating youth route choices and experiences this research will provide insights into how neighborhood youths perceive streets, and how planners and policymakers can make them safer.

Status: In Progress

Evaluating Accessibility and Equity Impacts of Pandemic Transit Service Adjustments: A Case Study of the San Francisco Bay Area

Status

Complete

Project Timeline

August 1, 2022 - June 30, 2024

Principal Investigator

Project Team

Johanna Zmud, Phoebe Ho

Campus(es)

UC Berkeley

Project Summary

The COVID-19 pandemic forced transit agencies to quickly adapt to new challenges, with service reductions as part of the response to reduced ridership, rising fiscal pressures, and staffing shortages. However, approaches to service adjustment varied significantly across agencies. While pandemic literature often focuses on ridership impacts, less attention has been given to how transit service changes affected accessibility and equity. This study addresses this gap by examining the impacts of pandemic service adjustments on accessibility and equity, which is important to address given the absence of formal requirements for equity evaluation of temporary service changes. The analysis explored spatiotemporal patterns in service adjustment and evaluated the equity impacts on job accessibility for three major San Francisco Bay Area transit agencies. Using publicly available transit schedule and census data, metrics for transit service levels, job accessibility, and accessibility inequality were used to trace changes from 2020 to 2023. The findings reveal distinct approaches to service reduction and restoration, with agencies prioritizing service differently based on travel needs and racial/ethnic minority populations. While equity briefly improved for some agencies during the pandemic, these changes were temporary, with all agencies returning to their pre-pandemic states of inequity. These insights can guide transit agencies in developing equitable service adjustment strategies and highlight the need for decision-making tools to help transit operators balance competing needs and respond flexibly to disruptions.

Comparing California and European Strategies for Reaching Very Low Carbon Transportation Systems

Status

Complete

Project Timeline

October 1, 2022 - September 30, 2023

Principal Investigator

Project Team

Pierpaolo Cazzola, Marshall Miller, Aditya Ramji

Project Summary

Achieving a near-zero CO2 transportation system within California will be extremely challenging but is needed to reach the state’s goal of carbon neutrality by 2045. The transition will require a revolution in the way transportation services are provided, and in the policy choices needed to make these technologies economically viable. California is a world leader in low-carbon transportation policies including 100% zero emission vehicle (ZEV) mandates, vehicle and infrastructure incentives, low-carbon fuel standards, and others. However, these are likely not enough to achieve net zero goals by 2045, as highlighted in the May 2022 Draft Scoping Plan by the California Air Resources Board (CARB). While the Scoping Plan will serve as an important planning tool, the state would also benefit from additional analysis of other national strategies, especially from leading European countries and the European Union (EU), that can be applied to California. Strong sustainable transportation policy action across the United Kingdom, Germany, France, Sweden, and other countries are worthy of investigation both as sources of innovative and alternative policies but also as potential synergistic approaches to what is already underway here. This project will conduct an analysis of low-carbon transportation policies in Europe (focused both at the EU-level and among member countries) and in California, including recent and planned policies, with a particular focus on ZEVs. The most important European policies will be compared to existing and planned policies in California to gain insight into how California could adapt some European strategies in its quest for a carbon-neutral future. Emphasis will be on road vehicles (light-duty vehicles and medium/heavy duty trucks and buses), but some attention will also be given to aviation, shipping, and rail. Areas of analysis will include vehicle and fuel-related regulatory policy, financial and fiscal policies such as incentives and feebates, as well as direct investments (e.g., in infrastructure, information/education, etc.). The analysis will review transportation greenhouse gas (GHG) emission targets, progress on reducing GHG emissions from different transportation modes, current strategies, policies, and their impacts. It will also examine the analysis and modeling of current and future trends, policy impacts, and gaps.

Re-allocating Urban Space to Support Multimodal Transportation

Status

In Progress

Project Timeline

September 1, 2022 - September 30, 2026

Principal Investigator

Campus(es)

UC Davis, UCLA

Project Summary

Reducing vehicle miles traveled (VMT) is a key plank of California’s climate and broader transportation policies. The draft Scoping Plan Update from the California Air Resources Board calls for a per capita reduction in VMT of at least 22% from 2019 to 2045, and the state’s regions have enshrined VMT reduction targets in their Sustainable Communities Strategies. These reductions, however, are unlikely to be achieved without a reduction in the physical space—roadways and parking—allocated to motor vehicles. Just as parking and highway expansion induce more vehicle travel, capacity reductions can reduce it and also lock in place VMT reductions achieved through improved transit and active transportation facilities. The research team will consider if, how, where, and to what extent California local governments are reducing road and parking capacity. Such reductions are likely to be relatively small-scale to date, and so the researchers will examine three policy areas where embryonic capacity reductions are most likely to have occurred: (i) the conversion of existing garages to Accessory Dwelling Units, leading to a reduction in parking for the principal residence; (ii) elimination of parking and/or travel lanes to create space for bicycling infrastructure; and (iii) conditions of approval for development projects under the new vehicle miles traveled standard following SB 743.

Rail Transit Ridership in California: Lessons Learned from Station Area Assessments

Status

Complete

Project Timeline

February 22, 2022 - December 31, 2023

Principal Investigator

Project Team

Project Summary

Emerging evidence shows that rail transit ridership has recuperated unevenly—at different rates in different places—as California has emerged from the COVID-19 pandemic. Stations that serve central business districts, for example, show slower gains in rail transit passengers compared to stations with mixed income residents and mixed uses in suburban locations. It is not yet clear what is causing this difference, but this disparity signals that post-COVID ridership will be different from what was observed in the past, and some station areas will likely need to develop strategies that account for this new reality. This study examines how various characteristics (e.g., land use, development density, the pedestrian environment) 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. Key findings include 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.

Identifying Solutions for Overcoming Barriers to Transit-Oriented Development

Status

Complete

Project Timeline

October 1, 2021 - December 31, 2022

Principal Investigator

Project Team

Campus(es)

UC Davis

Project Summary

The California Air Resources Board recently concluded in a report to the state legislature on progress in achieving SB 375 goals that development patterns in the state since adoption of the law run counter to achieving its objectives. In this context, and given severe housing affordability problems, policymakers need to understand how and whether localities are developing effective strategies to support affordable TOD. Localities face persistent barriers in doing so including obtaining and balancing funding for transit, active transportation, and affordable housing; designing effective programs to gain public benefits from private development; assembling land parcels; attracting market interest in certain areas; and addressing public concerns about new development. This research project will build upon a recently completed two-year research project that investigated motivations, perceived obstacles, and policy-making patterns of California cities for promoting TOD as well as public transit and active transportation. Specifically, this project will examine more deeply the barriers to TOD that California cities experience, how they overcome them, and what support they need from state and regional agencies to do so. The research team will review public policy documents and conduct interviews with city planners and other stakeholders. In addition, the research team will investigate policy tools shown to be promising based on findings from previous research, including development of Specific Plans, California Environmental Quality Act (CEQA) streamlining through “tiering” from Specific Plans, density bonus programs that provide for “ministerial” project approvals, and transport-related land use strategies including reducing parking requirements and linking SB 743-required environmental review at the project level with impact fees and transportation demand management ordinances.

Stockton’s Crosstown Freeway, Urban Renewal, and Asian Americans: Systemic Causes and Impacts

Status

Complete

Project Timeline

October 1, 2021 - October 25, 2023

Principal Investigator

Project Team

Paul Ong, Jacob Wasserman, Christopher-Hung Do, Anne Yoon

Project Summary

Stockton underwent spatial restructuring in the decades after the Second World War, and state and local government contributed and responded to these changes by implementing connected freeway and urban renewal programs. Historical and contemporaneous xenophobia and racism placed Chinatown, Japantown, and Little Manila in their path, with these enclaves deemed blighted and subject to “slum clearance.” The choice of freeway route was racially biased. The neighborhood surrounding an unchosen route was predominantly white, whereas that of the chosen route was predominantly home to people of color. Freeway construction during the 1960s and 1970s directly displaced hundreds of people and housing units downtown—mainly people of color, particularly Asians. The communities most harmed were the Asian American enclaves, where the housing stock declined by about three quarters between 1960 and 1970. The losses were not only physical, as the freeway and redevelopment eviscerated once vibrant ethnic commercial hubs. Because of long-standing economic and political marginalization, Asian Americans were relatively powerless to prevent the destruction; nonetheless, they fought to build affordable housing for their people, protect and in some cases relocate cultural institutions, and support surviving ethnic businesses. In the long run, Stockton failed to revitalize its downtown, while destroying its cultural diversity. This project explores the various facets and implications of this history through many lenses. The research team employs quantitative methodologies to investigate four questions: 1) whether the choice of freeway paths was racially disparate, 2) what were the number and the racial composition of the people and housing directly impacted (i.e., dislocated) by freeway construction, 3) what were the indirect impacts of freeway construction on housing units and housing costs over time, and 4) what were the associated losses from urban renewal. The team utilizes qualitative methods as well to examine the human impacts on Asian Americans residents of the area and their political response. The project contributes both academically and practically. It complements the existing literature by its focus on an often-understudied group, Asian Americans, and by making the systemic dynamics of racism central to the analyses. The findings can also help reform and improve professional practice within the transportation arena to ensure racial fairness and equity.

Investigating Travel Demand Heterogeneity During and After the Pandemic in the Northern California Megaregion: A Data-Driven Analysis of Origin-Destination Structural Patterns

Status

Complete

Project Timeline

October 1, 2021 - March 31, 2023

Principal Investigator

Project Team

Jaime Soza Parra, Junia Compostella, Ran Sun

Campus(es)

UC Davis

Project Summary

Over the past year, academic studies of COVID-19’s impact on the transportation sector have focused on preferences for and perceptions of different travel modes, changes in vehicle mileage, traffic congestion and pollutant emissions, public transportation operations and ridership, and equity considerations, among many others. Overall, some of the impacts of the pandemic are likely to be transitory whereas others might have longer-term consequences. In partnership with several planning agencies, the research team will construct short-range mobility scenarios for Northern California to help inform planning and policy-making processes. The project team will review the available literature on the impacts that the pandemic has had on different cities’ passenger mobility patterns (i.e., non-freight related travel), focusing on studies based on the analysis of both passively-collected data (e.g., location data from personal mobile devices and survey data (and their integration). The research team will use passively-collected data supplied by the Streetlight Data platform from various location-based services, and information from concurrent survey research being conducted by UC Davis researchers, to build a baseline and future multimodal mobility scenarios to explore the extent to which recent changes induced by the pandemic (e.g., increased telecommuting, remote shopping, mode shifts from public transit to cars, changes in vehicle ownership, changes in time of day of trips) might affect multimodal passenger travel (e.g., changes in vehicle mileage, trip patterns, transit ridership, and bicycling) in different geographic locations, at different times of day, and by multiple modes. Finally, the project team will draw insights and policy recommendations to help inform agencies’ investment and policy decisions.

Addressing the Impacts of Truck Idling and Searching for Parking on Environmental Justice Communities

Status

Complete

Project Timeline

January 1, 2022 - June 30, 2023

Principal Investigator

Project Team

Ivan Xiao, Carlos Otero, Daniel Rivera

Project Summary

Truck idling and searching for parking consume fuels and produce emissions that degrade air quality. In the U.S., more than 6 billion gallons of fuel at an estimated cost of $20 billion are wasted each year due to idling. An idling heavy‐duty diesel truck emits about 10 times more nitrogen oxides (NOx) than a passenger car, and truck idling emits more than 11 million tons of carbon dioxide and more than 180,000 tons of NOx per year, in addition to particulate matter and other air pollutants. Trucks usually idle near warehouses and distribution centers, and research has shown that these facilities are disproportionally located in disadvantaged communities. The California Air Resources Board (CARB) has been trying to address the negative consequences of community exposure to particulates from idling through various policies such as Airborne Toxic Control Measures. Moreover, emissions from idling or searching for parking are not the only problem; a recent study of disadvantaged communities in Southern California found that safety is also a critical factor. However, despite new regulations and technological improvements, the negative effects continue to occur, especially in disadvantaged communities. This research project addresses the issue of truck idling and searching for parking in disadvantaged communities in the Central Valley, specifically in Kern County, where the CARB has already identified the cities of Shafter, Arvin, and Lamont as environmental justice communities (as part of Assembly Bill 617 implementation). First, using publicly available information about parking and idling behavior from GeoTAB’s Intelligence Data tool, the team will conduct spatial analyses to identify truck parking and idling hotspots. This information will be enhanced with data from other public sources about the physical infrastructure, and socio‐demographic and economic conditions, to develop exploratory econometric models to identify the factors that contribute to idling time, or time and distance spent searching for parking. The team will use data from the San Joaquin Valley Air Pollution Control District’s Community Air Monitoring portal to determine whether higher emission levels are associated with locations with more idling or searching for parking. Using emission rates from the CARB’s Emission FACtor (EMFAC) model, the team will estimate the emissions from idling and searching for parking and quantify the vehicle mileage traveled in and around the hotspots. Second, the team will conduct fieldwork at the various locations (hotspots identified in AB 617 and other disadvantaged communities) to document actual truck parking/idling conditions to identify other factors that may affect this behavior, and any additional negative effects brought about. Through collaboration with the Kern Council of Governments and Caltrans, the team will gather input and feedback from the local impacted communities. It is expected that the process developed in this project could be replicated with other communities.