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published journal article

Exploring Electric Vehicle Driver Activities and Expenditure While Using DC Fast Chargers

Abstract

Public Direct Current Fast Charging (DCFC) infrastructure is in its nascency, may not be profitable, and locations may not provide the amenities that consumers want. Using survey data from California this paper explores two topics related to these issues: activities of battery electric vehicle (BEV) drivers and their expenditure while using DCFC. The results show that 44.5% of BEV drivers purchase something while charging. Expenditure in establishments around chargers is $39.82 on average, while expenditure on charging is $10.35 to $16.07 on average. Most spending occurs at cafés, restaurants, or bars; grocery or convenience stores; and department or big-box stores.

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policy brief

Increasing Access to Zero-Emissions Vehicles at Dealerships Could Increase Adoption and Improve Equity Outcomes

Abstract

California has set a target of achieving 100% zero-emission vehicle (ZEV) sales by 2035. While the state has made substantial progress, with ZEVs accounting for roughly 25% of new vehicle sales in 2025, adoption remains uneven across communities. Disadvantaged communities (DACs), which face disproportionate exposure to air pollution, continue to lag in ZEV uptake. Most DAC-related policy efforts to date have focused on demand-side interventions, such as consumer purchase incentives, rather than supply-side approaches that increase vehicle availability. Because more than half of ZEV sales in California occur through franchised dealerships, they are a critical gateway through which consumers access these vehicles and may represent an important leverage point for increasing adoption. To better understand the linkage between ZEV adoption and dealerships, the research team examined levels of access to ZEVs at car dealerships across California and rates of ZEV adoption in surrounding areas. Each census tract was assigned a ZEV accessibility score that combined ZEV inventory at nearby dealerships and distance to dealerships. While the study can help determine whether dealership availability is associated with higher rates of nearby ZEV adoption, the results should be interpreted as correlational rather than causational.

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research report

Assessing the Role of Dealerships in Expanding Equitable Access to Zero-Emission Vehicles in California

Abstract

This study examines the relationship between levels of access to zero-emission vehicles (ZEVs) at car dealerships in California and rates of ZEV adoption in surrounding areas. ZEV accessibility scores for census tracts—based on available ZEV inventory and proximity to dealerships—correlated significantly with ZEV adoption rates, even after controlling for income, demographics, charging infrastructure, and consumer incentives. The study results suggest that a 1% increase in ZEV accessibility correlated with an increase in ZEV adoption by 0.73% in disadvantaged communities (DACs) versus 0.125% in non-DACs. This indicates a latent demand in DACs constrained by supply-side barriers. Dealership-based incentives positively correlated with local ZEV adoption. Policies that support equitable inventory distribution among dealerships, expanded dealership-based incentive programs, and coordination with charging infrastructure planning may increase ZEV adoption in DACs.

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research report

Exploring Transportation Mode Choice and Participation in LA Metro’s “GoPass” Program Among Los Angeles Community College Students

Abstract

This research evaluates LA Metro’s GoPass program—a fare-free transit initiative for K-12 and community college students—through a survey of Los Angeles Community College District (LACCD) students. The research team investigated students’ travel preferences through a discrete choice experiment, assessed GoPass awareness and participation impacts on transit use, and analyzed spatial and seasonal ridership patterns from TAP card records. GoPass participation increased transit use by 26 percentage points for school trips and 19 percentage points for discretionary trips, with greater benefits for socioeconomically disadvantaged students. Even students aware of GoPass but not participating showed a 5.8 percentage point increase in school related transit use. However, 39% of eligible students were unaware of the program, and car access reduced transit use probability by 37 percentage points. The discrete choice experiment revealed students valued travel time savings at $27–$54 per hour and Wi-Fi availability at $6–$7 per trip. Modest travel time reductions generated larger welfare gains than free fares alone, suggesting service improvements may offer better returns than fare subsidies. Analysis of 1.1 million TAP card records showed substantial seasonal variation: summer ridership declined 37.5% for buses and 32.2% for rail. Single-vehicle households maintained more consistent usage (+11.9%), while three-vehicle households showed the largest declines (-40.9%). Areas with high transit stop density and high violent crime maintained more consistent usage, reflecting transit-dependent populations. These findings demonstrate that increasing student transit ridership requires addressing service quality, coverage, and program awareness beyond fare reductions alone.

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research report

Understanding Post-Pandemic Travel Behavior Patterns and Trends in California

Abstract

The COVID-19 pandemic fundamentally reshaped global mobility, forcing a departure from previous travel norms. In California, initial declines in public transit and ride-hailing were accompanied by a surge in private vehicle interest and shifts to active travel. To assess whether spatial and temporal travel patterns shifted between 2019 and 2023, this study analyzed Performance Measurement System freeway data, regional transit boarding records, and spatial econometric modeling of Streetlight Insight data. The findings reveal a near-recovery of weekday freeway volumes and stable weekend patterns, yet an uneven transit recovery that favors buses over rail and weekends over weekdays. There was significant spatial dependence in active transportation; while the primary factors influencing walking and cycling remain consistent, their relative magnitudes have shifted. Ultimately, Californians’ choices of transportation modes are different after the pandemic than they were before it. Integrating these altered patterns into current planning frameworks is essential for developing resilient, equitable, and sustainable transportation policies.

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research report

Zero-Emission Vehicle Transition in California’s Construction Industry

Publication Date

June 1, 2026

Author(s)

Shakib Kafashan, Jean-Daniel Saphores

Abstract

Although construction equipment generates 2% to 3% of total GHG emissions in California, the construction sector lags behind other industries for decarbonization, primarily due to the systemic challenges of delivering high-capacity electric power to temporary and remote jobsites. This study investigates the primary infrastructure, regulatory, and economic barriers to construction site electrification while exploring technological and policy solutions. Using a multi-faceted approach, the research conducted a literature review, interviewed California Electric Load-Serving Entities, and analyzed emerging mobile charging technologies. Findings indicate that utility support varies by institutional model; municipal utilities often manage requests more efficiently than larger investor-owned utilities, which face complex regulatory hurdles. Key obstacles include local grid capacity limitations, long lead times and high costs for distribution upgrades, and high capital costs for electric machinery. Since the immediate benefits of electrification—the elimination of tailpipe emissions and significant noise reduction—are most impactful in densely populated urban areas, electrification should be prioritized in these areas with quiet zones and low-emission construction zones coupled with subsidies to absorb the cost of bringing electric infrastructure to these sites. Alternative power solutions such as mobile battery energy storage systems (BESSs), hydrogen fuel cell generators, and solar-powered units could help other construction sites. A successful transition requires a coordinated framework involving streamlined permitting, technical guidance for emerging infrastructure, and targeted financial support to lower costs and improve local air quality.

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research report

The Revival of Cargo E-Bikes in the United States: Challenges and Recommendations

Publication Date

July 1, 2026

Author(s)

Yongsung Lee, Siddhartha Gulhare, Maria Carolina Lecompte, Leon Kang, Giovanni Circella, Miguel Jaller

Abstract

Cargo e-bikes are emerging as a promising solution for sustainable urban freight delivery, offering advantages over conventional van-based systems in emissions reduction, congestion mitigation, and operational flexibility. This white paper examines the current state of cargo e-bike deployment in the United States, identifies key barriers to adoption, and provides evidence-based recommendations for policymakers and urban planners. Despite a rapidly growing global market—with projected annual growth of 11–15% through 2034—cargo e-bike deployment faces three interconnected challenges: infrastructure gaps (microhub locations, bicycle network coverage, and parking); regulatory inconsistenciesacross jurisdictions regarding vehicle specifications and permitted infrastructure use; and operational challenges including higher upfront costs and battery-related concerns. To overcome these barriers, this report recommends that cities establish microhub networks, expand bicycle infrastructure, ensure adequate parking with charging capabilities,develop consistent regulatory frameworks, and implement financial incentives and pilot programs. Coordinated action across these domains can enable cargo e-bikes to realize their potential as transformative elements of sustainable urban logistics.

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research report

E-shopping Meets Electrified Self-driving: Impacts on the Number, Size, and Locations of Warehouses & Distribution Centers

Abstract

This study shows that as freight transportation costs decline due to autonomous driving technology and online shopping increases, warehousing becomes more consolidated, the number and size of distribution centers increase, drayage truck mileage is reduced but delivery truck mileage increases, leading to a net mileage increase.

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policy brief

Free Transit Helps Students—But Car Access, Transit Quality, and Perceptions Still Shape Who Benefits

Abstract

Fare-free transit programs are increasingly used to increase ridership and reduce household transportation costs, especially for lower-income households. In California, where fewer than ten percent of school trips are made on school buses and many students travel long distances to reach school, transit costs and access can pose real barriers to education and after school opportunities. At the same time, fare-free programs require substantial and ongoing public investment, raising important questions about whether eliminating fares alone is enough to meaningfully change student travel behavior.

In October 2021, LA Metro—the largest transit agency in Los Angeles County—launched the GoPass pilot program in partnership with other transit operators and multiple school districts, providing free transit passes to K-14 students. To better understand how GoPass influences student travel, who participates, and why, the research team examined student travel behavior, perceptions, and program participation across two complementary studies. One focused on Los Angeles Community College District (LACCD), including a survey of 1,800 LACCD students, while the other focused on high school students in a predominantly low-income school district.

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policy brief

Transportation System Performance: Should We Redefine Induced Demand?

Abstract

In Walkable City, Jeff Speck says that induced demand is the thing that everyone in city planning understands but doesn’t talk about. It may be more accurate to categorize induced demand as the thing that everyone in city planning talks about but doesn’t understand. The issue is muddied by inconsistent definitions of relevant terminology.

This brief explores the various dimensions of induced demand. It is suggested that the term induced demand be used only when referring to the number of trips produced, and that it should not be used when referring to the other characteristics of these trips, such as destination, mode, time-of-day, or path.