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Policy Information

Highway Statistics 2008

Annual Vehicle Distance Traveled in Miles and Related Data - 2008 1/ By Highway Category and Vehicle Type

April 2011
Updated Table VM-1*

Excel Version (36 kb)
PDF Version (21 kb)

YEAR ITEM LIGHT DUTY VEHICLES SHORT WB 2/ MOTORCYCLES BUSES LIGHT DUTY VEHICLES LONG WB 2/ SINGLE-UNIT TRUCKS 3/ COMBINATION TRUCKS SUBTOTALS ALL MOTOR VEHICLES
ALL LIGHT DUTY VEHICLES /2 SINGLE-UNIT 2-AXLE 6-TIRE OR MORE AND COMBINATION TRUCKS
  Motor-Vehicle Travel: (millions of vehicle-miles)
2008 Interstate Rural 135,091 1,652 2,057 42,477 11,970 49,973 177,568 61,943 243,221
2008 Other Arterial Rural 227,930 3,286 2,141 88,931 20,176 31,771 316,861 51,947 374,235
2008 Other Rural 236,762 3,231 2,119 93,095 19,286 16,287 329,857 35,573 370,779
2008 All Rural 599,784 8,168 6,317 224,503 51,431 98,031 824,287 149,463 988,235
2008 Interstate Urban 335,612 2,527 2,131 83,429 16,752 35,663 419,041 52,415 476,114
2008 Other Urban 1,089,361 10,115 6,376 297,524 58,672 50,131 1,386,886 108,803 1,512,179
2008 All Urban 1,424,973 12,642 8,506 380,953 75,423 85,794 1,805,927 161,218 1,988,293
2008 Total Rural and Urban 5/ 2,024,757 20,811 14,823 605,456 126,855 183,826 2,630,213 310,680 2,976,528
2008 Number of motor vehicles registered 2/     196,762,927    7,752,926      843,308        39,685,228        8,288,046         2,585,229 236,448,155 10,873,275 255,917,664
2008 Average miles traveled per vehicle 10,290 2,684 17,578 15,256 15,306 71,106 11,124 28,573 11,631
2008 Person-miles of travel (millions) 4/ 3,199,116 26,430 314,278 1,049,667 126,855 183,826 4,248,783 310,680 4,900,171
2008 Fuel consumed (thousand gallons) 85,589,249 489,419 2,056,928 34,925,304 17,143,521 30,560,882 120,514,553 47,704,403 170,765,303
2008 Average fuel consumption per vehicle (gallons) 435 63 2,439 880 2,068 11,821 510 4,387 667
2008 Average miles traveled per gallon of fuel consumed 23.7 42.5 7.2 17.3 7.4 6.0 21.8 6.5 17.4

* The current update is based on an enhanced methodology implemented in March 2011

1/ The FHWA estimates national trends by using State reported Highway Performance and Monitoring System (HPMS) data, fuel consumption data (MF-21 and MF-27), vehicle registration data (MV-1, MV-9, and MV-10), other data such as the R. L. Polk vehicle data, and a host of modeling techniques. Starting with the 2009 VM-1, an enhanced methodology is used to provide timely indictors on both travel and travel behavior changes.

2/ Light Duty Vehicles Short WB - passenger cars, light trucks, vans and sport utility vehicles with a wheelbase (WB) equal to or less than 121 inches. Light Duty Vehicles Long WB - large passenger cars, vans, pickup trucks, and sport/utility vehicles with wheelbases (WB) larger than 121 inches. All Light Duty Vehicles - passenger cars, light trucks, vans and sport utility vehicles regardless of wheelbase.

3/ Single-Unit - single frame trucks that have 2-Axles and at least 6 tires or a gross vehicle weight rating exceeding 10,000 lbs.

4/ Vehicle occupancy is estimated by the FHWA from the 2001 National Household Travel Survey (NHTS); For single unit truck and heavy trucks, 1 motor vehicle miles travelled = 1 person-miles traveled.

5/ VMT data are based on the latest HPMS data available; it may not match previous published results.

The data now on the website for 2000-2006 were estimated using a methodology developed in the late 1990s. FHWA recently developed a new methodology and used it for this year's Highway Statistics. This methodology takes advantage of additional and improved information available beginning in 2007 when states were first required to report motorcycle data – before that time, the reporting was not mandatory and the data were missing for a few states. Also, the new methodology does not rely on data from the national vehicle inventory and use survey which provided critical data for the original methodology but was not collected in 2007 as planned.

In April 2011, FHWA recalculated the 2000-2008 data along with the 2009 data to estimate trends. However, after further review and consideration, the agency determined that it is more reliable to retain the original 2000-2006 estimates because the information available for those years does not fully meet the requirements of the new methodology. Thus, the original 2000-2006 estimates are now used, whereas the 2007-2009 data are still based on the new methodology.

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Updated: 01/03/2012

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