Figure 2. Monthly Seasonal Factors for Vehicle Miles Traveled (billions), July 1990 - December 2009

Figure 2. Monthly Seasonal Factors for Vehicle Miles Traveled (billions), July 1990 - December 2009

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(Deviation from trend)

  Monthly Seasonal Factors for Vehicle Miles Traveled
January -20.87172463
February -28.75770796
March 1.057033665
April 0.268651763
May 12.13068484
June 11.26082656
July 17.99356686
August 18.02258352
September -2.246455581
October 6.633849547
November -8.576951092
December -6.914357497

SOURCE: U.S. Department of Transportation, Federal Highway Administration, Traffic Volume Trends, http://www.fhwa.dot.gov/ohim/tvtw/tvtpage.cfm and U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation, special tabulations.