David R. Ragland PhD, MPH

Director, UC Berkeley Safe Transportation Research and Education Center (SafeTREC)
Adjunct Professor Emeritus, Epidemiology

Director of the UC Berkeley Safe Transportation Research and Education Center (SafeTREC), a joint project of the Institute of Transportation Studies and the School of Public Health. The Center's mission is reducing traffic-related injury through teaching, outreach, technical assistance, and research.

Research Interests: 
  • Injury epidemiology (intentional and unintentional)
  • Injuries in vulnerable roads users (pedestrians, bicyclists, motorcyclists)
  • Interaction of behavioral and environmental factors in injury
  • Demographic/social/cultural factors in injury patterns
  • Firearm injury (epidemiology, policy, prevention)
Selected Publications: 

Jacobsen, Peter L; Ragland, David R; Komanoff, C. Safety in Numbers for walkers and bicyclists: exploring the mechanisms. Inj Prev 2015;21:4 217-220

MacLeod, Kara E; Karriker-Jaffe, Katherine J; Ragland, David R; Satariano, William A; Kelley-Baker, Tara; Lacey, John H. Acceptance of drinking and driving and alcohol-involved driving crashes in California. Accident Analysis & Prevention, Volume 81, 2015, pp 134-142

Zhang, Yuanyuan; Bigham, John; Ragland, David; Chen, Xiaohong. Investigating the associations between road network structure and non-motorist accidents. Journal of Transport Geography, Volume 42, 2015, pp 34-47

Ragland, David R; Bigham, John; Oum, Sang Hyouk; Chen, Katherine; Felschundneff, Grace. Traffic Injury on Tribal Lands in California. Transportation Research Board 94th Annual Meeting, Transportation Research Board, 2015, 10p

MacLeod, Kara E; Satariano, William A; Ragland, David R. The impact of health problems on driving status among older adults. Journal of Transport & Health, Volume 1, Issue 2, 2014, pp 86-94

Zhang, Yuanyuan; Proulx, Frank; Ragland, David; Schneider, Robert; Grembek, Offer. Develop a Plan to Collect Pedestrian Infrastructure and Volume Data for Future Incorporation into Caltrans Accident Surveillance and Analysis System Database. University of California, Berkeley; California Department of Transportation, 2014, 110p

Grembek, Offer; Bosman, Craig; Bigham, John M; Fine, Sara; Griswold, Julia B; Medury, Aditya; Sanders, Rebecca L; Schneider, Robert J; Yavari, Afsaneh; Zhang, Yuanyuan; Ragland, David R. Pedestrian Safety Improvement Program. University of California, Berkeley; California Department of Transportation, 2014, 272p

Grembek, Offer; Medury, Aditya; Orrick, Phyllis; Leung, Katherine; Ragland, David R; Loukaitou-Sideris, Anastasia; Fink, Camille N Y; Resnick, Justin; Wong, Norman; Shafizadeh, Kevan; Khan, Ghazan. A Comparative Analysis of Pedestrian and Bicyclist Safety Around University Campuses.  University of California, Berkeley; University of California, Berkeley; University of California, Los Angeles; California State University, Sacramento; California Department of Transportation; Research and Innovative Technology Administration, 2014, 180p

Li, Zhibin; Ahn, Seongchae; Chung, Koohong; Ragland, David R; Wang, Wei; Yu, Jeong Whon. Surrogate safety measure for evaluating rear-end collision risk related to kinematic waves near freeway recurrent bottlenecks. Accident Analysis & Prevention, Volume 64, Issue 0, 2014, pp 52-61

Ragland, David R; Pande, Swati; Bigham, John; Cooper, Jill F. Examining Long-Term Impact of California Safe Routes to School Program: Ten Years Later. Transportation Research Record: Journal of the Transportation Research Board, Issue 2464, 2014, pp 86–92.

Other interests: 
  • Technical Advisory Committee, UrbanFootprint Public Health Module, Governor's Office of Planning and Research
  • Advisory Committee, Crash Medical Outcomes Data (CMOD), California Department of Public Health
  • Executive Committee, Institute of Transportation Studies, UC Berkeley
  • Data Technical Advisory Team, California Strategic Highway Safety Plan (SHSP)
  • California Pedestrian Advisory Committee (CALPED)