Advocacy, Drug-Impaired Driving, Drunk Driving, DUI/DWI/OWI/OWAI, Ignition Interlock, Road Safety Research, Traffic Safety

Spotlight on TIRF

The Traffic Injury Research Foundation USA focuses on road user behaviors to deliver high-quality road safety research services. It is an expansion into the U.S. of the Traffic Injury Research Foundation of Canada, established in 1964 and internationally recognized for its accomplishments in a wide range of subject related to identifying the causes of road crashes and developing programs and policies to address them effectively. ]

tirf-logo8TIRF recently published its 51st annual report with interesting statistics on teenage driving, women driving while intoxicated, and information on the development a multi-disciplinary knowledge transfer (KT) model that can accommodate the complexities of the road safety environment and the diverse practitioners that work within it. TIRF USA is about to embark on an evaluation of the ignition interlock program in Minnesota. The goal of this project is to examine the effectiveness of the ignition interlock program in Minnesota and to provide a comprehensive report to the Minnesota Department of Public Safety, Office of Traffic Safety. Following the implementation of a pilot ignition interlock program, Minnesota implemented a statewide ignition interlock program in 2011. The two primary goals of the program are to prevent impaired driving and reduce DWI re-offenses. This evaluation is critical as it represents the first evaluation of the program since its statewide implementation. The evaluation will include advanced statistical analysis to determine if the program is having the desired effect of deterring motorists from driving while impaired and thereby enhancing road safety. Program participation rates as well as profiles of program participants will be explored. The evaluation will identify characteristics of those drivers most likely to complete the program successfully and those who are most likely to continue to attempt to drive while intoxicated despite the interlock being placed on their vehicle. The study will also provide information on recidivism rates for those all individuals who are eligible for the interlock program. The evaluation is expected to be completed in September 2015. For further information, visit the TIRF website at


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