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May 2008 Traffic Volume Trends

  • Travel on all roads and streets changed by -3.7 percent for May 2008 as compared with May 2007.
  • Travel for the month is estimated to be 254.7 billion vehicle miles.
  • Cumulative Travel for 2008 changed by -2.4 percent.
  • Cumulative estimate for the year is 1,188.5 billion vehicle miles of travel.

Click here for lists of state by region

  • Estimated Vehicle-Miles of Travel by Region - May 2008 - (in Billions)
  • Change in Traffic as compared to same month last year.
Region Total Travel Percentage Change
North-East 38.1 -4.2
South-Atlantic 54.1 -4.1
North-Central 57.2 -4.5
South-Gulf 49.6 -3.2
West 55.8 -2.3


  • All data for this month are preliminary. Revised values for the previous month are shown in Tables 1 and 2.
  • All vehicle-miles of travel computed with 2006 Table VM-2 as a base.
  • Compiled with data on hand as of July 14, 2008.
  • Some historical data were revised based on HPMS and amended TVT data as of May 2008
  1. Travel Trends (May 2008)
  2. Individual Monthly Motor Vehicle Travel in the U.S. for May 2008
  3. Changes on Rural Arterial Roads by Region and State
  4. Changes on Urban Arterial Roads by Region and State
  5. Changes on All Estimated Roads by Region and State
  6. Volume Trends - Rural
  7. Volume Trends - Urban
  8. Figure 1 - Moving 12-Month Total on All Highways
  9. Figure 2 - Travel on U.S. Highways By Month

More Information


Steven Jessberger
Office of Highway Policy Information
E-mail Steven


United States Department of Transportation - Federal Highway Administration