Evaluation of 2004 Tennessee crash data reported to the MCMIS crash file

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dc.contributor.author Green, P. E. en_US
dc.contributor Matteson, A.M. en_US
dc.date.accessioned 2007-09-04T20:38:53Z
dc.date.available 2007-09-04T20:38:53Z
dc.date.issued 2007-05
dc.identifier 99847 en_US
dc.identifier.other UMTRI-2007-24 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/55667
dc.description.abstract This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. The earlier studies showed that reporting to the MCMIS Crash File was incomplete. This report examines the factors that are associated with reporting rates for the state of Tennessee. MCMIS Crash File records were matched to the Tennessee Crash file to determine the nature and extent of underreporting. Overall, it appears that Tennessee is reporting 51.3 percent of crash involvements that should be reported to the MCMIS Crash file. Reporting rates vary by crash severity and vehicle type. Overall, about 93.5 percent of fatal involvements are reported, compared with 54.8 percent of injury/transported involvements, and 47.4 percent of towed/disabled involvements. Crashes involving large trucks such as tractor-semitrailers or doubles combinations were more likely to be reported than crashes involving small, single-unit trucks or buses. The reporting rate for the Tennessee Highway Patrol is 57.0 percent, while the rate for city police is 49.9 percent and the rate for sheriff’s offices is 37.8 percent. Missing data rates are not negligible for more than a few variables in the MCMIS Crash file. Certain key variables such as vehicle configuration are more than 95 percent missing. Missing data rates are also elevated for sequence of events variables, number of vehicles in the crash, and driver license class. Hazardous materials variables display some inconsistencies between data in the MCMIS file and data recorded in the Tennessee file. en_US
dc.description.sponsorship Federal Motor Carrier Safety Administration en_US
dc.format.extent 41 p. en_US
dc.format.extent 1695767 bytes
dc.format.mimetype application/pdf
dc.language English en_US
dc.publisher University of Michigan, Ann Arbor, Transportation Research Institute en_US
dc.relation.ispartofseries MCMIS Crash File en_US
dc.subject.other Accident Records en_US
dc.subject.other Accident Statistics/ Accident Rates en_US
dc.subject.other Buses en_US
dc.subject.other Data Acquisition Methods en_US
dc.subject.other Databases/ Data Banks en_US
dc.subject.other Evaluative Methods en_US
dc.subject.other Motor Carriers en_US
dc.subject.other Police Reports en_US
dc.subject.other State Governments/ Province Governments en_US
dc.subject.other Trucks en_US
dc.subject.other Tennessee en_US
dc.title Evaluation of 2004 Tennessee crash data reported to the MCMIS crash file en_US
dc.title.alternative Evaluation of 2004 Tennessee crash data reported to Motor Carrier Management Information System crash file en_US
dc.type Technical Report en_US
dc.subject.hlbsecondlevel Transportation
dc.subject.hlbtoplevel Engineering
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/2027.42/55667/1/99847.pdf en_US
dc.owningcollname Transportation Research Institute (UMTRI)
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