Effects of Vehicle Power on Passenger Vehicle Speeds

From vehicle model year 1985 to model year 2015, mean horsepower increased by 98% for sport utility vehicles (SUVs), 83% for cars, and 168% for pickup trucks. This increase in vehicle power has been found to correlate to insurance claim frequency and severity. This field study focused on the relationship between higher vehicle power, passenger vehicle travel speeds, driver characteristics, and speed limits. Data was collected during April-May 2013 on Virginia highways using roadside photo radar cameras. Vehicle weight and horsepower came from vehicle registration records. Regression analysis was used to estimate the effects of vehicle horsepower on mean travel speed and likelihood of speeding. The results of the model demonstrate that a 1-unit increase in vehicle power is associated with a 0.7% increase in mean speed and a 2.7% increase in the likelihood of speeding.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 18p

Subject/Index Terms

Filing Info

  • Accession Number: 01619063
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 25 2016 1:49PM