Training and education

Observational Study of Cell Phone and Texting Use Among California Drivers 2012 and Comparison to 2011 Data

Cooper, Jill F.
Ragland, David R.
Ewald, Katrin
Wasserman, Lisa
Murphy, Christopher J.
2013

This methodological report describes survey research and data collection methods employed for the second Observational Survey of Cell Phone and Texting Use among California Drivers study conducted in 2012. This study was conducted by Ewald & Wasserman Research Consultants (E&W) on behalf of the California Office of Traffic Safety and the Safe Transportation Research and Education Center at University of California at Berkeley. The survey’s goal was to obtain a statewide statistically representative observational sample of California’s cell phone use behaviors, focusing on...

Course Announcement: Spring 2018 Traffic Safety and Injury Control

November 29, 2017
SafeTREC

Traffic Safety and Injury Control Spring 2018

National Teen Driver Safety Week October 15 - 21

October 16, 2017

Did you know that car crashes are the leading cause of death for teenagers, ahead of all other types of injury, disease, or violence? To shed light on this epidemic and reduce the number of lives lost, National Teen Driver Safety Week will be held this week from October 15 - 21.

NHTSA Teen Driver Safety GraphicThe National Highway Traffic Safety Administration (NHTSA) reports that nationwide in...

Free Pedestrian and Bicycle Safety Workshops in Pomona, Long Beach and San Gabriel

September 14, 2017

CPBST Workshops in Pomona and Long Beach

SafeTREC and California Walks are happy to announce that we are offering free Community Pedestrian and Bicycle Safety Training (CPBST) workshops in Pomona, Long Beach and San Gabriel! The goal is to make communities safer and more pleasant for walking and bicycling. And stay tuned for details on upcoming workshops! We are still recruiting sites to host CPBST...

Free Pedestrian and Bicycle Safety Workshops Coming Up

August 23, 2017

SafeTREC and California Walks are happy to announce that we are offering free Community Pedestrian and Bicycle Safety Training (CPBST) workshops across the state this fall. The goal is to make communities safer and more pleasant for walking and bicycling. Join us for the upcoming workshops in Azusa, Sanger, and Fresno. And stay tuned for details on upcoming workshops! We are still recruiting sites to host CPBST workshops. If you...

Course Announcement: Fall 2017 Injury Prevention and Control

July 25, 2017
SafeTREC

Free Pedestrian and Bicycle Safety Workshops

June 6, 2017

SafeTREC and California Walks are happy to announce that we are offering free Community Pedestrian and Bicycle Safety Training (CPBST) workshops across the state this summer. The goal is to make communities safer and more pleasant for walking and bicycling. Join us this month in Oakland, Merced, El Dorado County, and Palermo. We are still...

The Association between Booster Seat Use and Risk of Death Among Motor Vehicle Occupants aged 4–8: A Matched Cohort Study

Rice, Thomas M.
Anderson, Craig L.
Lee, A. S.
2009

Objective: To estimate the effectiveness of booster seats and of seatbelts in reducing the risk of child death during traffic collisions and to examine possible effect modification by various collision and vehicle characteristics.

Methods: A matched cohort study was conducted using data from the Fatality Analysis Reporting System. Death risk ratios were estimated with conditional Poisson regression, bootstrapped coefficient standard errors, and multiply imputed missing values using chained equations.

Results: Estimated death risk ratios for booster seats used with seatbelts...

Geocoding Police Collision Report Data from California: A Comprehensive Approach

Bigham, John M.
Rice, Thomas M.
Pande, Swati
Lee, Junhak
Park, Shin Hyoung
Gutierrez, Nicolas
Ragland, David R.
2009

Background

Collision geocoding is the process of assigning geographic descriptors, usually latitude and longitude coordinates, to a traffic collision record. On California police reports, relative collision location is recorded using a highway postmile marker or a street intersection. The objective of this study was to create a geocoded database of all police-reported, fatal and severe injury collisions in the California Statewide Integrated Traffic Records System (SWITRS) for years 1997-2006 for use by public agencies.

Results

Geocoding was completed with a multi-step...

The Inclusion of Adult Vehicle Occupants in Matched Cohort Studies of Child Restraint Effectiveness: A Study of Potential Bias

Rice, Thomas M.
Anderson, Craig L.
2010

Objective: To determine whether either the inclusion of adults in matched cohort studies of passenger vehicle occupants or modification of age effects by collision severity biases child restraint risk ratios biases estimate of child restraint effectiveness.

Methods: Monte Carlo data simulations were conducted to represent 10,000 collision-involved vehicles carrying a mix of children and adults. The effects of age category, adult seat belt use, child seat belt use, and child safety seat use were set to known values. Age was a modifier of the adult and child seat belt risk ratios and...