Data collection

“Office Hour” with the Street Story Team

July 27, 2022
Do you have questions about how to enter Street Story data, analyze data from your community, create a custom boundary - or other questions about using the tool? How about using the paper version or simply entering reports?

Screenshot of the StreetStory website

Join the UC Berkeley ...

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

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

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)


March 15: Using Crowdsourced Data Strategies in Community Engagement

February 28, 2022

Community members at a walking and biking safety training filling out a Street Story survey about their transportation safety experiences, with the title of the Peer Exchange session on 3 stacked color boxes in orange, yellow and blue

UC Berkeley Safe Transportation Research and Education Center (SafeTREC) and California Walks are...

Apply now for a Tribal Transportation Safety Assessment in your community

December 8, 2021
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 10 California tribes to apply for the next round of Tribal Transportation Safety Assessments (TTSAs), beginning...

New Resources for Street Story Now Available in Spanish

November 30, 2021

Within the past year, several new resources have been developed for Street Story, an online community engagement tool that allows residents, community groups and agencies to collect information about transportation collisions, near-misses, general hazards and safe locations to travel.


SafeTREC's SangHyouk Oum presents on SWITRS & TIMS Tools for Crash Data in California

October 5, 2021

On Thursday, September 23, 2021, SafeTREC Applications Program Manager SangHyouk Oum presented, "SWITRS and TIMS Tools for Crash Data in California" via Zoom for the Injury Prevention Coalition in the County of San Luis Obispo....

NEW! SWITRS Statewide Summary Tool on TIMS

September 20, 2021

UC Berkeley SafeTREC’s Transportation Injury Mapping System (TIMS) has been developed to provide quick, easy and free access to California crash data from the Statewide Integrated Traffic Records System (SWITRS) that has been geo-coded to make it easy for users to query, map, and download collision data.

As part of an ongoing effort to support local and state agencies efforts to improve traffic safety, a new tool is now available, the...