Motorized Vehicle Safety

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.

New Campaign from Traffic Safety and Law Enforcement Launches: DUI Doesn't Mean Just Booze

December 29, 2017

Drug impaired driving is a problem on California highways. This includes drivers under the influence of prescribed medications, illicit drugs, over-the-counter medications or marijuana. And just like drunk driving, driving under the influence of drugs is illegal.

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.

CSCRS Article on Safe Systems Approach in USDOT October 2017 Newsletter

October 13, 2017

What is a safe systems approach to road safety? SafeTREC, a consortium member of the Collaborative Sciences Center for Road Safety (CSCRS), the new University Transportation Center (UTC) at The University of North Carolina, Chapel Hill (UNC), is part of the effort to answer this question and define the concept of a safe systems approach for introduction in the U.S. 

Injury Prevention and Control

Fall 2017 Public Health 285a Injury Prevention and Control Meets weekly on Friday, 2-4 pm, 2 units (3 units with a paper)

Instructors: David Ragland, Co-director, SafeTREC; Glenn Shor, Center for Occupational and Environmental Health.

Drinking and driving and perceptions of arrest risk among California drivers: Relationships with DUI arrests in their city of residence

MacLeod, Kara E.
Karriker-Jaffe, Katherine J.
Satariano, William A.
Kelley-Baker, Tara
Lacey, John H.
Ragland, David R.
2017

Objective: Addressing drinking and driving remains a challenge in the United States. The present study aims to provide feedback on driving under the influence (DUI) in California by assessing whether drinking and driving behavior is associated with the DUI arrest rates in the city in which the driver lives; whether this is due to perceptions that one can get arrested for this behavior; and whether this differed by those drivers who would be most affected by deterrence efforts (those most likely to drink outside the home).

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.

Alcohol Consumption and Incidence of Workers' Compensation Claims: A 5-Year Prospective Study of Urban Transit Operators

Ragland, David R.
Krause, Niklas
Greiner, Birgit A.
Holman, Barbara L.
Fisher, June M.
Cunradi, Carol B.
2002

Numerous studies have linked alcohol impairment on the job to occupational injury. Few studies have looked at the association of nonwork drinking and occupational injury. This study examines first workers' compensation claims after a baseline assessment of alcohol consumption and other occupational variables in 1836 transit operators participating in a medical examination for driver's license renewal. A proportional hazard model was used for the analysis. 

Traffic Volume and Collisions Involving Transit and Nontransit Vehicles

Ragland, David R.
Hundenski, Ronald J.
Holman, Barbara L.
Fisher, June M.
1991

This study reports an analysis of collisions occurring between public transit vehicles operated by the San Francisco Municipal Railway System (Muni), the public transit agency for the City of San Francisco, and nontransit vehicles. The analysis, focusing on weekday collisions during 1987, demonstrated a strong association between hourly transit collisions rates and hourly traffic volume.