The impact on alcohol-related collisions of the partial decriminalization of impaired driving in British Columbia, Canada

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dc.contributor.authorMacdonald, Scott
dc.contributor.authorZhao, Jinhui
dc.contributor.authorMartin, Gina
dc.contributor.authorBrubacher, Jeff
dc.contributor.authorStockwell, Tim
dc.contributor.authorArason, Neil
dc.contributor.authorSteinmetz, Susanne
dc.contributor.authorChan, Herbert
dc.date.accessioned2013-08-19T21:38:28Z
dc.date.available2013-08-19T21:38:28Z
dc.date.copyright2013en_US
dc.date.issued2013-05
dc.description.abstractIntroduction: The purpose of this paper is to assess the impact of administrative sanctions introduced as part of a new law for drinking drivers in British Columbia, Canada. The new law, known as immediate roadside prohibitions (IRP), aimed to increase the efficiency of police and courts for processing drinking drivers, thereby increasing the certainty of their being apprehended and punished. However, in order to maintain these efficiencies, sanctions under this new law largely replaced laws under the Criminal Code of Canada for Driving While Impaired (DWI) by alcohol, which had more severe penalties but lower certainty of punishment. We examined whether the intervention was related to abrupt significant declines in three types of alcohol-related collisions (i.e. fatalities, injuries or property damage only) compared to the same type of collisions without alcohol involvement. Methods: An interrupted time series design, with a non-equivalent control was used, testing for an intervention effect. Monthly rates of the three types of collisions with and without alcohol involvement were calculated for the 15-year period before and the 1-year period after implementation of the new law. ARIMA time series analysis was conducted controlling for trend effects, seasonality, autocorrelation, and collisions without alcohol. Results: Significant average declines (p < 0.05) in alcohol-related collisions were found as follows: 40.4%for fatal collisions, 23.4% for injury collisions and 19.5% for property damage only collisions. No significant effects were found for any of the three comparable non-alcohol-related types of collisions. Conclusions: These results suggest that provincial law of administrative sanctions for drinking drivers and associated publicity was more effective for minimizing alcohol-related collisions than laws under the Canadian Criminal Code.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.identifier.citationS. Macdonald et al. / Accident Analysis and Prevention 59 (2013) 200– 205en_US
dc.identifier.urihttp://hdl.handle.net/1828/4772
dc.identifier.urihttps://doi.org/10.1016/j.aap.2013.05.012en
dc.language.isoenen_US
dc.publisherElsevier Ltd.en_US
dc.subjectCanadian Institute for Substance Use Research
dc.subjectimmediate roadside prohibitations
dc.subjectalcohol-related collision
dc.subjectinterrupted time series design
dc.subject.departmentSchool of Health information Science
dc.subject.departmentDepartment of Psychology
dc.titleThe impact on alcohol-related collisions of the partial decriminalization of impaired driving in British Columbia, Canadaen_US
dc.typeArticleen_US

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