Training and education

Evaluation of Wet Weather Accident Causation Criteria

Oh, Soonmi
Ragland, David R.
Chan, Ching-Yao
2008

This report documents findings from analysis of traffic collision data from sites that display high collision rates only under wet pavement conditions. These sites were selected using Caltrans safety engineers’ field reports, Wet Table C “investigation required” locations, and a new approach called Continuous Risk Profile (CRP). The geometric features at the sites were studied via field visits and review of as-built plans. Rapid spatial changes (i.e., vertical and horizontal curve in short distance), narrower lane width, lack of median, and wider total freeway width were some of the...

Drivers, Pedestrians, and Cyclists in California Want Complete Streets: Comparison of Results from Roadway Design Surveys of Pedestrians, Drivers, Bicyclists, and Transit Users in Northern and Southern California

Sanders, Rebecca L.
Griffin, Ashleigh
MacLeod, Kara E.
Cooper, Jill F.
2014

This paper compares findings from two recent surveys on roadway design preferences among pedestrians, drivers, bicyclists, and public transit users along major urban corridors in the metro areas of San Francisco and Los Angeles. Sponsored by the California Department of Transportation (DOT), the research explored design preferences that could increase perceived traffic safety, walkability, bikability, and economic vitality along urban arterials. Results from intercept surveys showed that roadway users desire similar design features along the test corridors, which carry 25,000-40,000...

Explore our latest CPBST reports!

August 3, 2023
Submitted by Kristen Leckie

As the summer rolls on, our Community Pedestrian and Bicycle Safety Training Program (CPBST) continues to work with communities across the state of California to advance their pedestrian and bicycle safety goals. In 2023, the CPBST program is partnering with 7 new communities to:

review pedestrian and bicycle crash data and safety strategies;

facilitate a walking and biking assessment;

strategize with participants to define specific community pedestrian...

Registration open for 6/24 CSSA peer exchange - "Beyond city limits: Advancing safety through the CSSA – Lessons from Contra Costa County and CSU San Marcos"

June 6, 2025
Submitted by Karen Nguyen Vo

UC Berkeley SafeTREC is excited to announce the final part of our 2025 online peer exchange series as part of the Complete Streets Safety Assessment (CSSA) program. This two-part webinar series aims to support agencies and communities working to advance safer walking and biking throughout California.

Registration is now open for the second session on June 24, where former CSSA participants will share the best...

Sites chosen for 2025 Complete Streets Safety Assessments program

April 21, 2025
Submitted by Karen Nguyen Vo

UC Berkeley SafeTREC and California Walks are excited to share news about the communities throughout California that we will be partnering with this year as part of our 2025 Complete Streets Safety Assessment (CSSA) program!

...

Watch as traffic safety research is explained in 101 seconds

May 6, 2025
By Sean Patrick Farrell

There’s a statistic that sticks in the minds of many who work on traffic safety issues: The U.S., among wealthy nations, has the highest rate of road traffic fatalities. People in the U.S. are nearly three times more likely to die in a car crash than people in Australia, and six times more likely than in Sweden.

For Julia Griswold, this troubling fact should be front of mind for everyone, whether they are drivers, cyclists, pedestrians or transportation planners. Griswold runs UC Berkeley’s...

4/29 Peer Exchange - Leveraging the CSSA for funding opportunities: A case study from the City of Calabasas

April 10, 2025
Submitted by Lisa Peterson

UC Berkeley SafeTREC is excited to announce our 2025 online peer exchange series as part of the Complete Streets Safety Assessment (CSSA) program. This two part webinar series aims to support agencies and communities working to advance safer walking and biking throughout California. Registration is now open for the first session on April 29th, which will provide the opportunity to gain a greater...

Complete Streets Safety Assessments

Complete Streets Safety Assessment Program

SafeTREC offers free technical assistance to communities across California to make safe spaces for people to walk and bike. This year, the Complete Streets Safety Assessment program offers two unique tracks to better support communities’ safety needs.

Complete Streets Safety Assessment (CSSA)

Safe Speed Limits Assessment (Safe Speed Limits)

These programs are free and available to communities across California. Specific eligibility varies by...

The 2025 CPBSP: Partnering with 13 communities throughout California for safer walking, biking and rolling

March 24, 2025
Submitted by Lisa Peterson

UC Berkeley SafeTREC and California Walks are excited to share news about the communities throughout California that we will be partnering with this year as part of our 2025 Community Pedestrian and Bicycle Safety Program (CPBSP)!

...

Registration open for 12/17 webinar about the Tribal Transportation Safety Assessment (TTSA) Program

December 10, 2019
SUBMITTED BY LISA PETERSON
The Tribal Transportation Safety Assessment (TTSA) Program

Participants in Happy Camp safety assessment

Caltrans, Division of Transportation Planning (DOTP), Native American Liaison Branch (NALB), in collaboration with SafeTREC and the National Indian Justice Center (NIJC) will provide California Native American Tribal Governments with expert, focused, and independent Tribal Transportation Safety Assessments (...