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dc.contributor.authorSchoettle, Brandonen_US
dc.contributorSivak, Michaelen_US
dc.contributorFlannagan, Michael J.en_US
dc.contributorKosmatka, W. J.en_US
dc.date.accessioned2007-06-20T18:20:39Z
dc.date.available2007-06-20T18:20:39Z
dc.date.issued2004
dc.identifier90292 A02en_US
dc.identifier.otherUMTRI-2004-23en_US
dc.identifier.otherPB2005-100280en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/55198
dc.description"September 2004."en_US
dc.descriptionIncludes bibliographical references (p. 11)en_US
dc.description.abstractThis study was designed to provide updated photometric information about current U.S. low-beam headlamps. The sample included 20 headlamps manufactured for use on the 20 bestselling passenger vehicles for model year 2004 in the U.S. The vehicles sampled represent 39% of all vehicles sold in the U.S. The lamps were purchased directly from vehicle dealerships. The photometric information for each lamp was weighted by the sales figure for the corresponding vehicle. The results are presented in tabular form for the 25th-percentile, 50th-percentile (median), and 75th-percentile luminous intensities (from 45° left to 45° right, and from 5° down to 7° up). The results are also presented in graphical form for the median luminous intensities (from 45° left to 45° right, and from 10° down to 10° up), as well as for the median illuminance incident on vertical surfaces at various locations on the roadway.en_US
dc.description.sponsorshipMichigan University, Ann Arbor, Industry Affiliation Program for Human Factors in Transportation Safetyen_US
dc.format.extent24en_US
dc.format.extent1254970 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.publisherUniversity of Michigan, Ann Arbor, Transportation Research Instituteen_US
dc.titleA market-weighted description of low-beam headlighting patterns in the U.S.: 2004en_US
dc.title.alternativeA market weighted description of low beam headlighting patterns in the United States: 2004en_US
dc.typeTechnical Reporten_US
dc.subject.hlbsecondlevelTransportation
dc.subject.hlbtoplevelEngineering
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/55198/1/UMTRI-2004-23.pdfen_US
dc.owningcollnameTransportation Research Institute (UMTRI)


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