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Police Accident Report (PAR) Quality Assessment Project.

PB97135313

Publication Date	1996
Personal Author	Greenberg, L.
Page Count	88
Abstract	In this study the author assesses the accuracy and completeness with which Police Accident Reports (PARs) are completed by state and local police. Focusing on data elements commonly used in studies carried out by the National Highway Traffic Safety Administration (NHTSA), the author compares data from PARs to data collected in independent reinvestigations of the same crashes by NHTSA's Crashworthiness Data System (CDS) researchers. A total of 939 crashes in 1991 from four CDS study sites were investigated. In all, 24 data elements were studied. For four data elements, very low discrepancy rates were found. For sixteen data elements, discrepancy rates varied by jurisdiction -- high in some, low in others. For four data elements, uniformly high discrepancy rates were found. These four data elements were manner of collision, vehicle identification number, occupant protection system use, and deployment of air bags (however the latter was treated as a separate data element in only one jurisdiction). The study results will be of interest to analysts relying on PAR-reported data. In addition, the author gives various recommendations for the improvement of PAR data quality.
Keywords	Data elements Quality assurance Police reports Accident reports Accuracy Errors Reports Data entry Police Accident Report(PAR) PAR(Police Accident Report) Crashworthiness Data System(CDS) Discrepancy rates
Source Agency	Highway Traffic Safety
NTIS Subject Category	85 - Transportation 43D - Police, Fire, & Emergency Services 91C - Fire Services, Law Enforcement, & Criminal Justice
Corporate Authors	Applied System Technologies, Inc., Rockville, MD.; National Center for Statistics and Analysis, Washington, DC.
Supplemental Notes	Sponsored by National Center for Statistics and Analysis, Washington, DC.
Document Type	Technical Report
Title Note	Final rept. Sep 95-Mar 96.
NTIS Issue Number	199709
Contract Number	DTNH22-94-D-07087

Police Accident Report (PAR) Quality Assessment Project.

Police Accident Report (PAR) Quality Assessment Project.
PB97135313

Publication Date	1996
Personal Author	Greenberg, L.
Page Count	88
Abstract	In this study the author assesses the accuracy and completeness with which Police Accident Reports (PARs) are completed by state and local police. Focusing on data elements commonly used in studies carried out by the National Highway Traffic Safety Administration (NHTSA), the author compares data from PARs to data collected in independent reinvestigations of the same crashes by NHTSA's Crashworthiness Data System (CDS) researchers. A total of 939 crashes in 1991 from four CDS study sites were investigated. In all, 24 data elements were studied. For four data elements, very low discrepancy rates were found. For sixteen data elements, discrepancy rates varied by jurisdiction -- high in some, low in others. For four data elements, uniformly high discrepancy rates were found. These four data elements were manner of collision, vehicle identification number, occupant protection system use, and deployment of air bags (however the latter was treated as a separate data element in only one jurisdiction). The study results will be of interest to analysts relying on PAR-reported data. In addition, the author gives various recommendations for the improvement of PAR data quality.
Keywords	Data elements Quality assurance Police reports Accident reports Accuracy Errors Reports Data entry Police Accident Report(PAR) PAR(Police Accident Report) Crashworthiness Data System(CDS) Discrepancy rates
Source Agency	Highway Traffic Safety
NTIS Subject Category	85 - Transportation 43D - Police, Fire, & Emergency Services 91C - Fire Services, Law Enforcement, & Criminal Justice
Corporate Authors	Applied System Technologies, Inc., Rockville, MD.; National Center for Statistics and Analysis, Washington, DC.
Supplemental Notes	Sponsored by National Center for Statistics and Analysis, Washington, DC.
Document Type	Technical Report
Title Note	Final rept. Sep 95-Mar 96.
NTIS Issue Number	199709
Contract Number	DTNH22-94-D-07087