Data collection

2022 SafeTREC Traffic Safety Fact Sheet: Aging Road Users

Katherine L. Chen
Bor-Wen Tsai
Garrett Fortin
Jill F. Cooper
2022
The older adult population in the United States aged 65 and older is expected to almost double between 2016 and 2060, from 49 million to 95 million. In 2020, there were 6,549 people aged 65 and older killed in traffic crashes in the United States; this accounted for 16.9 percent of all traffic fatalities. Older drivers 65 and older involved in fatal crashes decreased by 9.8 percent between 2019 and 2020.

As drivers age, physical and mental changes including reduced visual acuity, increased fragility, restricted movement, and cognitive impairment may directly and indirectly result in...

Custom Boundary Instructions for Street Story now available in Spanish!

September 30, 2022
Submitted by Jarah Crowner

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Perceptions of Bicycle Safety: A Data and User-Experience Approach

August 30, 2022
Submitted by Lisa Peterson
New research brief explores the existing bicycle infrastructure in the City of Oakland as it relates to cyclist safety

Climate change has caused unprecedented problems, which has increased efforts to fund sustainable green alternatives, including funding for alternative means of transportation such as active transportation and micro-mobility infrastructure improvements. In a new research brief, Perceptions of Bicycle Safety: A Data and User-Experience Approach, UC Berkeley SafeTREC's Graduate Student Researcher Greg Harasym explores existing bicycle infrastructure in the...

Perceptions of Bicycle Safety: A Data and User-Experience Approach

Gregory Harasym
2022
Climate change has caused unprecedented problems, which has increased efforts to fund sustainable green alternatives. In California, the transportation sector accounts for approximately 50 percent of the state’s greenhouse gas emissions. California’s Alternative and Renewable Fuel and Vehicle Technology Program (ARFVTP) provides $100 million annually to develop and deploy alternative fuel options, including infrastructure for zero and near-zero emission vehicles. In addition to ARFVTP, Senate Bill 743 was passed in 2013 which re-shaped the focus of traffic analysis from congestion and level...

New Publication - Highway Crashes in California During the COVID-19 Pandemic: Insights and Considerations

August 8, 2022
Submitted by Lisa Peterson
New publication provides insights on the impact of COVID-19 pandemic on road safety in California

SafeTREC Co-Director Offer Grembek, former Postdoctoral Researcher Praveen Vayalamkuzhi, and Applications Program Manager SangHyouk Oum have co-authored a book chapter, "Highway Crashes in California During the COVID-19 Pandemic: Insights and Considerations" as part of the new publication "Pandemic in the Metropolis:...

Highway Crashes in California During the COVID-19 Pandemic: Insights and Considerations

Offer Grembek
Praveen Vayalamkuzhi
SangHyouk Oum
2022

This chapter describes the results of a short-term analysis of highway crashes in California during the first year of the COVID-19 pandemic. The pandemic has had an unexpected and abrupt influence on the demand for mobility. The effect of this was a drastic reduction in the level of activity on the roads. This level of activity defines the exposure of road users to crash risk and represents a focal variable in the sciences of traffic safety. The rapid rate of change in traffic that occurred during the pandemic, triggered a need to monitor highway safety at a higher frequency than what was...

SHSP Crash Data Dashboard Now Includes Tribal Data

August 4, 2022
Submitted by Lisa Peterson
California's Strategic Highway Safety Plan (SHSP) Crash Data Dashboard now provides access to tribal crash data

UC Berkeley SafeTREC's geocoding team recently worked in collaboration with the Native American Advisory Committee (NAAC) and the California Department of Transportation (Caltrans) to provide access to tribal crash data on the Strategic Highway Safety Plan (SHSP) Crash Data Dashboard. The tabs of the SHSP Crash Data Dashboard now allow all data to be filtered by whether a fatal or serious injury crash was within 5 miles of a tribal boundary.

About the SHSP Crash Data...

Impact of the Community Pedestrian and Bicycle Safety Training Program: Insights from the 2022 Follow-Up Survey

Aqshems Nichols
Chen, Katherine L.
Jill F. Cooper
2022

The Community Pedestrian Bicycle Safety Training (CPBST) program is a collaborative project between UC Berkeley Safe Transportation Research and Education Center (SafeTREC) and California Walks (Cal Walks) that seeks to assist communities with three goals:

Identifying and better understanding their local transportation safety needs; Developing and strengthening local partnerships between various stakeholders in their community; and Generating a community-specific action plan for improving the safety of active transportation in their area.

These objectives are pursued through...

California Traffic Safety Survey 2022

Ewald, Katrin
Wasserman, Lisa
2022

Ewald & Wasserman Research (E&W) conducted the 2022 California Traffic Safety Public Opinion Study on behalf of the California Office of Traffic Safety (OTS) and the Safe Transportation Research and Education Center of UC Berkeley (SafeTREC). Similar to previous years and since 2020, the data collection transitioned from an intercept survey to an online panel with survey panelists provided by Marketing Services Group, a commercial sample and panel vendor.

Panelists consisted of California drivers who were forwarded to an online survey portal programmed and managed by E&W...

Statistical Support for the Development of the District 1 Active Transportation Census Program

Statistical Support for the Development of the District 1 Active Transportation Census Program

 Research Team:

Alexander Skabardonis, University of California Berkeley, PATH
Michael Mauch, University of California Berkeley, PATH
Philip Stark, University of California, Berkeley, Department of Statistics
Julia Griswold, University of California Berkeley, SafeTREC
Krista Nordback, University of South Carolina

Funding Organization

California Department of Transportation (Caltrans)

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