Bicycle safety

Register now for the 2023 Mobility Summit on November 3, 2023

October 25, 2023
Submitted by Lisa Peterson

Graphic with Haas Transportation & Mobility Club in black text on a yellow background

Join SafeTREC Safety Research Lead and Acting Co-Director Julia Griswold for the panel session, "Vision Zero: Closing the Loop on Safety and Equity" on Friday, November 3, 2023 at the 2023 Mobility Summit, UC Berkeley's flagship annual mobility conference sponsored by the Haas Transportation & Mobility Club...

A Context-Sensitive Street Classification Framework for Speed Limit Setting

A Context-Sensitive Street Classification Framework for Speed Limit Setting
Research Team

Principal Investigators:

Julia Griswold, University of California, Berkeley
Robert J. Schneider, University of Wisconsin-Milwaukee

Funding Organization

Center for Pedestrian and Bicyclist Safety (CPBS)


Summary

Historically, speed limit setting (SLS) procedures in many states have relied on driver-behavior-based approaches such as...

Creating a Data Resource of California Police Stops for Use in Traffic Safety Applications

Creating a Data Resource of California Police Stops for Use in Traffic Safety Applications
Research Team

Principal Investigator:

Julia Griswold, University of California, Berkeley

Funding Organization

Center for Pedestrian and Bicyclist Safety (CPBS)


Summary

Traffic stops are one of the most common ways in which the American public interacts with police. Although one of the leading reasons given for police traffic stops...

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...

Creating an inclusive bicycle level of service: Virtual bicycle simulator study

March 26, 2025
Submitted by Lisa Peterson
New report explores the benefits and limitations of using a VR environment to assess individuals’ bike infrastructure preferences

A new report by UC Berkeley Safe Transportation Research and Education Center (SafeTREC) co-authored by Julia Griswold, Edna Aguilar and Md. Mintu Miah, "Creating an inclusive bicycle level of service: Virtual bicycle simulator study" aims to assess how virtual reality (VR) technology can be used to gather user feedback on a variety of bicycling...

Creating an Inclusive Bicycle Level of Service: Virtual Bicycle Simulator Study

Griswold, Julia B.
Aguilar, Edna
Wang, Han
Miah, MD Mintu
2025

Bicycle level of service (BLOS) is an essential performance measure for transportation agencies to monitor and prioritize improvements to infrastructure, but existing measures do not capture the nuance of facility differences on the state highway system. However, with the advancements in virtual reality (VR) technology, a VR bicycle simulator is an ideal tool to safely gather user feedback on a variety of bicycling environments and conditions. This research explored the benefits and limitations of using a V...