Motorized Vehicle Safety

New Release: 2021 SafeTREC Traffic Safety Fact Sheets

September 30, 2021
2021 SafeTREC Traffic Safety Fact Sheets feature recent data on some of California's most pressing traffic safety issues to help inform future road safety efforts

UC Berkeley SafeTREC is excited to announce the release of the 2021 series of Traffic Safety Fact Sheets, which feature traffic safety data and trends at the national and state level on a variety of road safety topics. This series also highlights the Safe System approach to road safety. Historically, road safety efforts focused on changing human behaviors to prevent crashes. The Safe System approach reframes...

2021 SafeTREC Traffic Safety Fact Sheet: Speeding-Related Crashes

Katherine L. Chen
Bor-Wen Tsai
Garrett Fortin
Jill F. Cooper
2021

A speeding-related crash is defined as one where a driver is speeding, racing, driving too fast for the conditions, or driving in excess of the posted speed limit. In the United States, in 2019, over one in four (26.3 percent) fatalities involved speeding, a proportion that has remained steady since 2017 following a decline in the prior decade. Speeding reduces a driver’s ability to steer safely around curves or objects, reduces the amount of time a driver has to react to a dangerous situation, and extends safe stopping distances.

Historically, road safety efforts focused on...

2021 SafeTREC Traffic Safety Fact Sheet: Occupant Protection

Katherine L. Chen
Bor-Wen Tsai
Garrett Fortin
Jill F. Cooper
2021

Restraint devices such as seat belts are a key element of motor vehicle occupant protection systems. Each year, NHTSA conducts the National Occupant Protection Use Survey (NOPUS) that measures, among many variables, the use of seat belts by occupants age eight and older. The 2019 NOPUS reported that seat belt use was 90.7 percent among front-seat passengers, a slight increase from the 89.6 percent observed in 2018. Additionally, the 2019 survey found that seat belt use increased during both weekday rush hours and non rush hours. Use during weekday rush hours increased from 89.3 percent in...

2021 SafeTREC Traffic Safety Fact Sheet: Emergency Medical Services

Katherine L. Chen
Bor-Wen Tsai
Garrett Fortin
Jill F. Cooper
2021

There are typically many contributing factors in motor vehicle crashes. Emergency Medical Services (EMS) play a critical role post-crash to reduce fatalities and serious injuries. Recent studies show that an effective emergency trauma care system can improve survival from serious injuries by as much as 25 percent and county-level coordinated systems of trauma care can reduce crash fatalities rates as much as 50 percent.

The Haddon Matrix (see Figure 1) applies basic principles of public health to motor vehicle-related injuries. The matrix looks at the factors in the pre-crash, crash...

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...

July 30 Webinar: Redesigning the System to Support Safety

July 26, 2021
SafeTREC's Katherine Chen to present in CSCRS Safe Systems Summer Learning Series

The Collaborative Sciences Center for Road Safety (CSCRS) recently launched a new Safe Systems Summer Learning Series that will be held on Fridays...

Injury Prevention and Control

Photo collage from the course flyer showing first responders with stretcher at a motor vehicle crash, a firearm with bullets and a crashed bike with helmet in a crosswalk Download Course PDF COURSE OVERVIEW

Injury is the leading cause of death for ages 1-44, and the leading cause of years of...

New Research Highlight: Selected Research on Road Diets

May 5, 2021
Research highlights how road diets have been shown to reduce traffic injury

SafeTREC's graduate student researcher Elijah Wade and research analyst Bor-Wen Tsai have co-authored a new research highlight, "Selected Research on Road Diets."

Abstract Pedestrian and bicyclist injury and mortality is a common occurrence in California. Data from the Transportation Injury Mapping System found that serious injuries among bicyclists and pedestrians increased between 2017-2019, with 3,174 recorded in 2017 and a peak of 3,495 serious injuries in 2019. Along with serious injuries, there has also...