Benefits of daytime running lights

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Show simple item record Sivak, Michael en_US Schoettle, Brandon en_US 2011-03-10T18:46:41Z 2011-03-10T18:46:41Z 2011-03-10T18:54:50Z en_US 2011-02
dc.identifier Accession Number: 102733 en_US
dc.identifier.other UMTRI-2011-6 en_US
dc.description.abstract This study evaluated the effects of daytime running lights (DRLs) on two-vehicle, head-on crashes of passenger vehicles during daylight, dawn, and dusk. Two control dimensions were used: type of crash (the control being single-vehicle crashes) and light condition (the control being darkness). The data analyzed were U.S. fatal crashes for 1994 (during which time fewer than 1% of passenger vehicles were equipped with DRLs), 1999, 2004, and 2009 (during which time about 40% of passenger vehicles were equipped with DRLs). The results indicate that over the period examined (which had a large increase in the installation of DRLs), fatal, two-vehicle, head-on crashes (as percentages of single-vehicle crashes) were reduced more in daylight, dawn, and dusk than in darkness. Based on the present data, it is estimated that in 2009, DRLs reduced fatal, two-vehicle, head-on crashes by 8% in daylight and 28% in dawn and dusk. en_US
dc.description.sponsorship The University of Michigan Industry Affiliation Program for Human Factors in Transportation Safety en_US
dc.format.extent 13 en_US
dc.language English en_US
dc.publisher University of Michigan, Ann Arbor, Transportation Research Institute en_US
dc.subject.other Daytime Running Lamps en_US
dc.subject.other Head on Collisions en_US
dc.subject.other Periods of the Day en_US
dc.title Benefits of daytime running lights en_US
dc.type Technical Report en_US
dc.subject.hlbsecondlevel Transportation
dc.subject.hlbtoplevel Engineering
dc.description.bitstreamurl en Michael Flannagan en
dc.owningcollname Transportation Research Institute (UMTRI)
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