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Toward understanding the recent large reductions in U.S. road fatalities
From 2005 to 2009, U.S. road fatalities dropped by 22% (from 43,510 to 33,963). A reduction of such magnitude over such a short time has not occurred since road-safety statistics were first kept (starting in 1913), except for the reductions during World War II. The present study was performed to...
Drivers on unfamiliar roads and traffic crashes
This study was designed to investigate whether there is an increased risk of traffic crashes in the U.S. for out-of-state drivers-those drivers whose driver license was not issued by the state in which they were involved in a crash. Two analyses were performed. In the first analysis, we examined...
Appropriate analysis of CIREN data using NASS-CDS to reduce bias in estimation of injury risk factors in passenger vehicle crashes.
The Crash Injury Research Engineering Network (CIREN) database contains detailed medical and crash information on a large number of severely injured occupants in motor vehicle crashes. CIREN's major limitation for stand-alone analyses to explore injury risk factors is that control subjects...
Identification and validation of a logistic regression model for predicting serious injuries associated with motor vehicle crashes
A multivariate logistic regression model, based upon National Automotive Sampling System Crashworthiness Data System (NASS-CDS) data for calendar years 1999-2008, was developed to predict the probability that a crash-involved vehicle will contain one or more occupants with serious or incapacitating...
Bus operator types and driver factors in fatal bus crashes results from the buses involved in fatal accidents survey.
The Transportation Safety Analysis Division at the University of Michigan Transportation Research Institute (UMTRI) initiated the Buses Involved in Fatal Accidents (BIFA) project in 2000 to collect more detailed information about buses involved in fatal crashes. The BIFA project is supported by the...
Buses involved in fatal accidents factbook 2005.
This document presents aggregate statistics on buses involved in traffic accidents in 2005. The statistics are derived from the Buses Involved in Fatal Accidents (BIFA) file, compiled by the University of Michigan Transportation Research Institute. The BIFA database is a census of all buses...
Trucks involved in fatal accidents factbook 2006
This document presents aggregate statistics on trucks involved in traffic accidents in 2006. The statistics are derived from the Trucks Involved in Fatal Accidents (TIFA) file, compiled by the University of Michigan Transportation Research Institute. The TIFA database provides coverage of all...
Buses involved in fatal accidents factbook 2003.
This document presents aggregate statistics on buses involved in traffic accidents in 2003. The statistics are derived from the Buses Involved in Fatal Accidents (BIFA) file, compiled by the University of Michigan Transportation Research Institute. The BIFA database is a census of all buses...
Buses involved in fatal accidents factbook 2004.
This document presents aggregate statistics on buses involved in traffic accidents in 2004. The statistics are derived from the Buses Involved in Fatal Accidents (BIFA) file, compiled by the University of Michigan Transportation Research Institute. The BIFA database is a census of all buses...
Buses involved in fatal accidents factbook 2006
This document presents aggregate statistics on buses involved in traffic accidents in 2006. The statistics are derived from the Buses Involved in Fatal Accidents (BIFA) file, compiled by the University of Michigan Transportation Research Institute. The BIFA database is a census of all buses...

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