Job Change Rate as a Crash Predictor for Interstate Truck Drivers

Researchers analyzed the Motor Carrier Management Information System (MCMIS) database to develop estimates of the increased risk of crash involvement experienced by commercial drivers who change jobs frequently. This study was undertaken to quantify the risk of single- and multiple-crash involvement as a function of annual job change rate, and expressed the relative risk for drivers with more versus fewer job changes through calculation of the “odds ratio” statistic. Significant odds ratio values were observed, which indicated that crash risk begins to rise when a driver has averaged more than two jobs with different employers each year for two or more years, and that the odds of being involved in multiple crashes more than doubles for drivers with three or more jobs per year during this same period.


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01013465
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Dec 5 2005 11:01PM