Safe System

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...

Save the Date for CSCRS Safety Sunday @TRB 2023: January 8

December 12, 2022

Headed to the 2023 Transportation Research Board (TRB) Annual Meeting this year? Interested in learning more about the latest safety-related research topics?

The Collaborative Sciences Center for Road Safety (CSCRS) is hosting Safety Sunday @TRB, an evening for safety conversations and networking on Sunday, January 8, 2023. Drop by and join the conversation with Offer Grembek, SafeTREC co-director/CSCRS associate director and other University Transportation Center representatives.

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Explore our latest CPBST reports!

August 3, 2023

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...

SafeTREC's Liza Lutzker to present at 2025 SER Annual Meeting

May 29, 2025

UC Berkeley SafeTREC research data analyst Liza Lutzker will be presenting "Trends and disparities in pedestrian injuries and fatalities in hit-and-run crashes" in a poster session at the 2025 Society for Epidemiologic Research (SER) Annual Meeting on June 11th, 2025 in Boston, Massachusetts. This presentation draws from a current research project for the Center for Pedestrian and Bicyclist Safety (CPBS) that is examining recent trends and risk factors in pedestrian fatalities and injuries in hit-and-run...

Sites chosen for 2025 Complete Streets Safety Assessments program

April 21, 2025

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!

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Watch as traffic safety research is explained in 101 seconds

May 6, 2025

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...

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

March 24, 2025

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)!

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Reflections on the 2019 Safe Systems Summit: Redefining Transportation Safety

June 7, 2019

According to the latest data from the National Highway Traffic Safety Administration (NHTSA), there were 37,133 traffic fatalities on U.S. roadways in 2017, a 1.8-percent decrease from the 37,806 people killed in 2016. While there has been a general downward trend downward in traffic fatalities overall, this is still an alarmingly high number of deaths – and there have been troubling increases for vulnerable road users like pedestrians. A new report from the Governors Highway Safety...

Register Now for the CSCRS Safe Systems Summit, April 23-24

February 20, 2019
Safe Systems Summit Banner

Interested in learning more about what the Safe Systems approach is to road safety? Register now for the Safe Systems Summit: Redefining Transportation Safety, which will be held in Durham, North Carolina, from April 23-24, 2019. This event is presented by the Collaborative...