The Effects of Higher Speed Limits on Traffic Fatalities in the United States, 1993–2017

This report examines annual traffic fatality rates for each State in the U.S., 1993-2017, based on data from the Fatality Analysis Reporting System. These fatality rates were analyzed along with information on unemployment rates, driver age, annual vehicle miles of travel, maximum posted speed limit, changes in maximum speed limits, and types of roads. Results included: (1) fatality rates on interstates/freeways were 8.5% higher for each 5 mph increase in the maximum speed limit on interstates/freeways; and (2) there were 36,760 more traffic fatalities on all road types than would have been expected if speed limits had not increased.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 13p

Subject/Index Terms

Filing Info

  • Accession Number: 01711159
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 22 2019 3:55PM