Strategies to Improve Traffic Safety in the United States and Comments on Safety Impacts of Potential Rollback of Vehicle Efficiency Standards David R. Ragland, PhD, MPH, University of California, Berkeley Categories Type Research Dr. David Ragland, PhD, at University of California, Berkeley, describes more effective strategies to improve traffic safety than rolling back vehicle standards. Documents Strategies to Improve Traffic Safety in the United States and Comments on Safety Impacts of Potential Rollback of Vehicle Efficiency Standards 10_23_2018_RAGLAND_SAFE_TREC_TRAFFIC_SAFETY_STRATEGIES_AC_0.PDF · 428 KB