Data collection

Classification of Bicycle Traffic Patterns in Five North American Cities

Miranda-Moreno, Luis
Nosal, Thomas
Schneider, Robert J.
Proulx, Frank R.
2013

This paper analyses bicycle ridership patterns using a unique database of automated bicycle counts from approximately 40 locations in five North American cities and along the Route Verte in Quebec. The cities involved in this study are Montreal, Ottawa, Portland, San Francisco, and Vancouver. Count data show that the bicycle volume patterns at each location can be classified as utilitarian, mixed utilitarian, recreational and mixed recreational. Study locations classified into each of these categories are found to have consistent hourly and weekly traffic patterns, despite important...

Applications open soon for the 2024 Community Pedestrian and Bicycle Safety Program!

December 5, 2023
Submitted by Lisa Peterson

Graphic showing participants on a walk audit with a light blue filter and CBPSP program launch announcement in white text

The 2024 CPBSP

UC Berkeley SafeTREC and California Walks are excited to announce the upcoming January launch of our 2024 Community Pedestrian and Bicycle Safety Program (CPBSP)!

The...

New Podcast Episode: The Future of Transportation Safety

November 28, 2023
Submitted by Lisa Peterson

People walking, biking across an intersection on Hollywood Blvd. in Los Angeles on a sunny day

For many of us, we might think of transportation as a means to safely get from one place to another, but it's much more than that. Transportation is also having access to the basic needs and activities of our lives, and it's a critical factor that influences people's health and the health of our communities...

11/16 at UC GIS Week 2023: Traffic Safety in California: Advancing Equity by Identifying At Risk Communities with ArcGIS

November 10, 2023
Submitted by Lisa Peterson

Outreach graphic for the UC GIS Week 2023 event with an image of a sea monster on a dark beige background

Traffic Safety in California: Advancing Equity by Identifying At Risk Communities with ArcGIS Thursday, November 16, 2023 | 1pm - 1:35pm

Join SafeTREC Research Data Analyst Amalia Stahl for the presentation, "Traffic Safety in California: Advancing Equity by Identifying At Risk...

Tribal Transportation Safety Assessment (TTSA)

Tribal Transportation Safety Assessment (TTSA)

Participants conducting a needs assessment in Happy Camp, 2019

Needs assessment for the Karuk Tribe (Happy Camp, 2019)

UC Berkeley SafeTREC is inviting 12 California Tribes to apply for the next round of Tribal Transportation Safety Assessments (TTSAs) to be completed by September 30, 2023. TTSA studies will be based on the Tribal communities'...

California Traffic Safety Survey 2023

Ewald, Katrin
Wasserman, Lisa
2023

Similar to the survey waves since 2020, the 2023 California Traffic Safety Public Opinion Study was conducted by Ewald & Wasserman Research (E&W) on behalf of the California Office of Traffic Safety (OTS) and the Safe Transportation Research and Education Center of UC Berkeley (SafeTREC), with an online self-administered survey. Survey panelists were provided through Marketing Services Group, a commercial sample and panel vendor.

The eligibility criteria for participating in the study were possessing a valid California driver’s license and being 18 years or older. Eligible...

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


Funding Organization

Collaborative Sciences Center for Road Safety (CSCRS)...

Honoring Public Health and Traffic Safety Leader David R. Ragland

May 19, 2023
Submitted by Lisa Peterson
David R. Ragland, smiling in a light grey striped shirt with tie

The public health and traffic safety world suffered a deep loss on Sunday, May 7, 2023 with the passing of visionary and beloved colleague, teacher, mentor and friend, Dr. David R. Ragland, founder and Co-Director of the UC Berkeley Safe Transportation Research and Education Center (SafeTREC).

“David was always open to and interested in all...

Impact of the Community Pedestrian and Bicycle Safety Training: Program Insights from the 2023 Follow-Up Survey

Lekshmy Hirandas
2023

The Community Pedestrian and Bicycle Safety Training Program (CPBST) is a collaborative effort between the Safe Transportation Research and Education Center (SafeTREC) at the University of California Berkeley and California Walks (Cal Walks), established in 2009, with funding from the California Office of Traffic Safety. Its main objective is to promote pedestrian and bicycle safety by educating...

2022 SafeTREC Traffic Safety Fact Sheet: Drug-Involved Driving

Katherine L. Chen
Bor-Wen Tsai
Garrett Fortin
Jill F. Cooper
2022
The use of cannabis, prescription drugs, and other drugs are increasingly prominent on roadways in the United States, where 25.3 percent of the nation’s 38,824 fatalities in 2020 were related to drug-involved driving. Driving can be impaired by a variety of legal and illegal drugs, substances, and medications. The effect of specific drugs on behavior and driving skills vary considerably depending on how they act in the brain and are metabolized. They can slow reaction time, decrease coordination, increase aggressive and reckless driving, impair cognitive function, or cause drowsiness. All of...