Policy Briefs

The NCST produces two-page Policy Briefs to help summarize and synthesize findings from its research and to highlight the policy and/or practice implications in an easy-to-understand, accessible style and format.

The Safe Systems Pyramid

Research Product Type
Policy Brief
The Safe Systems Pyramid presented in this policy brief is a tool that incorporates public health principles to evaluate transportation safety policies and interventions. The Safe Systems Pyramid can help transportation practitioners and decision-makers prioritize projects for safety and communicate priorities to the public.

Challenges Are Present, But California Transit Agencies Are Open to Open-loop

Research Product Type
Policy Brief
Researchers from the University of California, Davis gathered surveys from a small sample of transit agencies (N = 21) and found that agencies are interested in open-loop payments, agencies and passengers would likely support it, but that it also presents challenges for agencies and passengers. This policy brief summarizes the findings from that research and provides policy implications.

Travel and the Built Environment in Rural Communities

Research Product Type
Policy Brief
This policy brief summarizes findings from the University of Vermont project where researchers sought to answer the question: is the relationship between travel and the built environment the same in urban and rural areas.

Extending public transit through micromobility facilities and services in the Bay Area

Research Product Type
Policy Brief
UC Davis researchers and urban design experts considered factors affecting public micromobility use -- such as secure parking availability and other environmental design features -- in this case study of the Bay Area Rapid Transit heavy rail system. This brief includes ways to integrate micromobility in public transit to improve first- and last-mile connectivity for riders.

Using Vehicle Miles Traveled Instead of Level of Service as a Metric of Environmental Impact for Land Development Projects: Progress in California

Research Product Type
Policy Brief
Senate Bill (SB) 743 (2013) and its related regulations eliminated automobile level of service (LOS) and replaced it with vehicle miles traveled (VMT) as the primary transportation impact metric for land development projects. The LOS-to-VMT shift was expected to create many challenges for transportation analysts. With those concerns in mind, researchers at the University of California, Davis investigated how local governments have been implementing the LOS-to-VMT shift.

Mileage Fees: An Equitable and Financially Viable Alternative to the Gas Tax

Research Product Type
Policy Brief
In the U.S., mileage fees, or road user charges, are being explored as an alternative to motor fuel taxes, often called “gas taxes.” Researchers from the University of Vermont Transportation Research Center used data from over 360,000 Vermont vehicles to assess the financial and equity impacts of replacing the Vermont state gas tax with a revenue-neutral mileage fee of 1.5 cents per mile.

Impacts of the Federal Tax Credit on the Decision to Lease or Purchase a Plug-in Electric Vehicle

Research Product Type
Policy Brief
To mitigate climate change and air pollution, multiple US states and other countries have been crafting policies aimed at shifting sales from conventional vehicles to plug-in electric vehicles. A key to developing these policies is understanding how financial incentives affect consumers’ decisions to purchase or lease PEVs. To better understand this, researchers at the University of California, Davis, analyzed survey responses from approximately 2,800 California PEV owners.

Household Vehicle Choice in California: Behavior and Impacts

Research Product Type
Policy Brief
An increasing diversity of vehicle types, paired with a growing demand for PEVs, has major implications for vehicle miles traveled (VMT), air pollution, and emissions. To better understand what is likely to happen, researchers predict household vehicle preference and VMT by vehicle body and fuel type.

California Cities Face Trade-offs in Developing Plans and Policies for Transit-Oriented Development

Research Product Type
Policy Brief
Transit-oriented development—higher-density residential or mixed-use development centered around high-quality transit stations—has emerged as a strategy to reduce greenhouse gases while increasing housing supply. Researchers at the University of California, Davis completed in-depth case studies of 11 California cities to understand their mix of strategies and how they have needed to reconcile sometimes competing policy goals in advancing transit-oriented development.

E-bike Incentive Programs Reduce GHGs and Support Recreational Travel

Research Product Type
Policy Brief
As yet, little is known about the efficacy of e-bike incentive programs in changing travel behavior. To understand the potential of these programs in this area, UC Davis researchers analyzed survey data from rebate recipients in Northern California and evaluated rebate programs for effects of e-bike ownership on travel behavior.

Do Slow Streets Encourage More Dockless Travel? Evidence from Electric Scooter Usage in Four Cities

Research Product Type
Policy Brief
A research team at the University of Southern California collaborated with Lime, an e-scooter company, to analyze Slow Streets programs in the cities of Oakland, San Francisco, Los Angeles, and Portland. Using two statistical approaches, they examined dockless e-scooter travel at four different times of day and overall weekly and monthly averages of dockless e-scooter trips. 

New Tool for Gig Drivers Considering Going Electric

Research Product Type
Research Brief
By 2030, the state is targeting 90% of passenger miles traveled on TNCs to be fueled by electricity. To support this objective, UC Davis researchers developed an online tool to help gig drivers understand their potential cost savings from EVs.