Publications

Researchers at the University of California, Davis conducted a review of practices in curbside management, and they conducted simulations to evaluate the impact of different management and design strategies on travel time, congestion, vehicle travel, and emissions in residential, commercial, and mixed-use neighborhoods in San Francisco.

This policy brief examines the adoption of plug-in electric vehicles in California between 2014 and 2016, both spatially and temporally, to gain a better understanding of the technology diffusion process and the effect of technology exposure, while controlling for sociodemographic factors and the effect of PEV incentive programs on PEV adoption in the state.

The market for plug-in electric vehicles (PEVs) that primarily include battery electric vehicles (BEVs) and plug-in hybrid vehicles (PHEVs) has been rapidly growing in California for the past few years. Given the targets for PEV penetration in the state, it is important to have a better understanding of the pattern of technology diffusion and the factors that are driving the process. Using spatial analysis and Poisson count models, the researchers identify the importance of a neighborhood effect (at home locations) and a workplace effect (at commute destinations) in supporting the diffusion of PEV technology in California.

This policy brief assesses state and local Transportation Network Company taxes across the United States and develops a method of comparing per-ride and percentage taxes in order to the examine the likelihood of these taxes encouraging more sustainable travel.

The transition to electric vehicles (EVs) will rely, ultimately, on the participation of all vehicle buyers. Researchers at UC Davis examined whether the gender similarities in prospective interest in EVs witnessed in California extended to other states that, while generally supportive of California’s EV goals and signatories to many of California’s air quality standards had less supportive policy frameworks, fewer EV sales, and less EV charging infrastructure in 2014.

While ownership and purchase of all vehicles approach gender parity, to date electric vehicles (EV) are being purchased by far more men than women. Prior analysis from California finds no reason in the available data why this difference persists. This report extends that analysis across 12 other U.S. states with varying, but generally less supportive than California, EV policy and market contexts.

This study contributes to understanding the secondary market for plug-in electric vehicles, including the vehicle market development and on-road usage.

This project creates a toolkit that run in ArcGIS and allows users to project where EV owners will live, work, and charge.

This report provides research findings from the second year of a two-year research project on patterns of local policymaking in California to support transit-oriented development (TOD), transit, and active transport.

This research project was designed to support efforts within Caltrans in conducting a wildfire vulnerability risk assessment for fuels reduction in the Right of Way to protect Caltrans’ infrastructure and travelers.

Many gaps exist to include Complete Streets in asset management, and there is no comprehensive plan for filling those gaps. This project developed a road map to fill those gaps.

This study evaluates changes in travel mode shares in California over the period from 2012, when the California Household Travel Survey (CHTS) was most recently completed, to 2017, the most recent implementation of National Household Travel Survey (NHTS).

This paper evaluates the role of incentives for zero and near-zero emission vehicle (ZEV) technologies in last-mile delivery operations. Specifically, the study investigates the total cost of ownership and life cycle environmental impacts associated with last-mile deliveries, and compares the private and public costs of different vehicle powertrain and fuel pathways, under existing incentives in the State of California.

The focus of this research is the design and implementation of a carbon calculator that estimates the CO2 emissions of both passenger vehicles and aviation options for surveyed real-world trips.

This study develops a model for estimating the Levelized Cost of Storage (LCOS) for second-life BESS and develops a harmonized approach to compare second-life battery energy storage systems (BESS) and new BESS.

In this paper, the authors conduct a critical review of the peer-reviewed literature on EV traction battery reuse and recycling to assess how transportation is represented. In response to the limited and highly variable treatment of battery end-of-life (EoL) transportation, the literature review is followed by contextual information about the U.S., including the regulatory framework and existing network for EoL batteries.

In this paper, the research team conducted a critical review of the peer-reviewed literature on EV traction battery reuse and recycling to assess how transportation is represented.

Researchers at the University of California, Davis examined the impacts of the COVID-19 pandemic on telecommuting patterns among various socio-demographic groups in the United States.

This paper examines mechanisms for autonomous vehicle-induced increases in vehicle miles traveled (VMT) – some of which are expected to have a disproportionately larger impact on rural VMT – and outlines five methods that have been used to study VMT changes: travel demand equalization; travel demand elasticity; travel demand models; and stated and revealed preference surveys.