Data collection

California Traffic Safety Survey 2020

Ewald, Katrin
Wasserman, Lisa
2020

The 2020 wave of data collection for the California Traffic Safety Study was conducted with an online panel of California drivers instead of an intercept interview, as were previous waves of data collection. This decision was made due to the COVID-19 pandemic occurring in 2020, and the need for an alternative data collection mode avoiding in-person contact between field interviewers and respondents.

California Traffic Safety Survey 2018

Ewald, Katrin
Wasserman, Lisa
2019

The 2018 California Traffic Safety Study is the ninth wave of a statewide representative survey of California vehicle drivers on traffic safety perceptions, distracted driving and level of awareness of traffic safety media outreach campaigns. The following data analyses is based on 1,395 survey responses collected in August and September of 2018.

Street Story: A Platform for Community Engagement

Share stories about where you've been in a crash or near miss, or where you feel safe or unsafe traveling using our Street Story tool.

Injury Crashes in California During COVID-19: Observations & Questions

June 4, 2020

Preliminary observations and important questions about traffic safety during COVID-19 based on provisional weekly police-reported injury crashes on state highways in California

 

The California Speeding and Aggressive Driving Study 2019

September 24, 2019

UC Berkeley SafeTREC is excited to release the California Speeding and Aggressive Driving Study 2019 led by Ewald & Wasserman Research Consultants (E&W). This study was conducted on behalf of the California Highway Patrol (CHP) and the Safe Transportation Research and Education Center (SafeTREC) at the University of California, Berkeley.  

CSCRS Clearinghouse for Bicyclist and Pedestrian Safety-Related Data

R14: Creating a CSCRS Clearinghouse for Bicyclist and Pedestrian Safety-Related Data, Phase 1: Inventory & Framework


Research Team

Prinicipal Investigator
Krista Nordback
University of North Carolina, Chapel Hill

Co-Investigators
Wes Kumfer
University of North Carolina, Chapel Hill

Seth LaJeunesse
University of North Carolina, Chapel Hill

Julia Griswold
University of California, Berkeley

New Research Brief: Community Trainings at Work

September 22, 2019

The Community Pedestrian Bicycle Safety Training (CPBST) program trains and mobilizes communities to address pedestrian and bicycle safety and strengthens collaboration with local officials and agency staff. This research brief summarizes an evaluation of the CPBST program completed in 2018. Read the full research brief.

Community Trainings at Work: An Evaluation of Community Pedestrian and Bicycle Safety Trainings

Beck, Kate M.
2019

The Community Pedestrian Bicycle Safety Training (CPBST) program trains and mobilizes communities to address pedestrian and bicycle safety and strengthens collaboration with local officials and agency staff. This research brief summarizes an evaluation of the CPBST program completed in 2018. 

Why Don't Women Cycle? A Case Study of Women's Perceptions of Cycling in San Francisco

Funaki, Dorry
2019

Safety and women’s perceptions of safety is a prevalent factor affecting the gender gap of cycling within the US. In this study, the use of bike lanes in the South of Market Area of San Francisco found that only 29% of the cyclists were female despite accounting for 50% of the population in the area. This research brief summarizes key issues found in this study of women’s perceptions of safety when cycling. 

Investigating the underreporting of pedestrian and bicycle crashes in and around university campuses - a crowdsourcing approach

Medury, Aditya
Grembek, Offer
Loukaitou-Sideris, Anastasia
Shafizadeh, Kevan
2017

In this paper, the non-motorized traffic safety concerns in and around three university campuses are evaluated by comparing police-reported crash data with traffic safety information sourced from the campus communities themselves. The crowdsourced traffic safety data comprise of both self-reported crashes as well as perceived hazardous locations. The results of the crash data analysis reveal that police-reported crashes underrepresent non-motorized safety concerns in and around the campus regions.