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Highway Statistics 2001 OHPI > Highway Statistics > 2001 > International & Metric > Table VM-1M

ANNUAL VEHICLE DISTANCE TRAVELED IN KILOMETERS AND RELATED DATA - 2001 1/
BY HIGHWAY CATEGORY AND VEHICLE TYPE

JANUARY 2011Table VM-1M
YEAR ITEM PASSENGER CARS MOTOR- CYCLES BUSES OTHER 2-AXLE 4- TIRE VEHICLES 2/ SINGLE- UNIT 2-AXLE 6-TIRE OR MORE TRUCKS 3/ COMBINATION TRUCKS SUBTOTALS ALL MOTOR VEHICLES
PASSENGER CARS AND OTHER 2- AXLE 4-TIRE VEHICLES SINGLE-UNIT 2-AXLE 6-TIRE OR MORE AND COMBINATION TRUCKS
  Motor-Vehicle Travel: (millions of vehicle-kilometers)                  
2001 Interstate Rural 218816 1804 1530 132539 13340 72317 351,355 85,657 440,347
2001 Other Arterial Rural 380348 2654 1823 235809 22518 44814 616,157 67,332 687,966
2001 Other Rural 372752 2587 3338 233966 23184 21206 606,718 44,390 657,034
2001 All Rural 971915 7045 6692 602315 59042 138338 1,574,230 197,379 1,785,347
2001 Interstate Urban 381390 2488 1247 205980 14064 38546 587,370 52,610 643,715
2001 Other Urban 1265685 5969 3438 708696 43400 42847 1,974,382 86,247 2,070,036
2001 All Urban 1647075 8457 4685 914676 57465 81393 2,561,752 138,857 2,713,751
2001 Total Rural and Urban 2,618,991 15,502 11,378 1,516,991 116,506 219,730 4,135,982 336,237 4,499,098
2001 Number of motor vehicles registered 5/ 137,633,467 4,903,056 749,548 84,187,636 5,703,501 2,154,174 221,821,103 7,857,675 235,331,382
2001 Average kilometers traveled per vehicle 19,029 3,162 15,179 18,019 20,427 102,002 18,646 42,791 19,118
2001 Person-kilometers of travel (millions) 6/ 4,114,258 18,925 241,470 2,701,851 137,581 259,377 6,816,109 396,957 7,473,461
2001 Fuel consumed (thousand liters) 7/ 278,450,310 729,752 3,883,450 202,601,980 36,594,514 96,572,835 481,052,291 133,167,349 618,832,842
2001 Average fuel consumption per vehicle (liters) 7/ 2,021 148 5,182 2,408 6,416 44,831 2,169 16,947 2,631
2001 Average kilometers traveled per liter of fuel consumed 7/ 9.4 21.3 2.9 7.5 3.2 2.3 8.6 2.5 7.3

1/ The 50 states and the District of Columbia report travel by highway category, number of motor vehicles registered, and total fuel consumed. The travel and fuel data by vehicle type and stratification of trucks, as well as related data, are calculated by the Federal Highway Administration (FHWA). Entries for 2000 may have been revised based on the availability of more current data. Estimation procedures include use of the 1997 Census of Transportation Vehicle Inventory and Use Survey (VIUS) and independent analysis of light truck travel.

2/ Other 2-Axle 4-Tire Vehicles which are not passenger cars. These include vans, pickup trucks, and sport/utility vehicles.

3/ Single-Unit 2-Axle 6-Tire or More Trucks on a single frame with at least two axles and six tires.

4/ Urban consists of travel on all roads and streets in urban places with 5,000 or greater population.

5/ Stratification of the truck figures is made by the FHWA based on State-supplied data and the 1997 VIUS. Combination trucks represent approximately the number of tractors with semi-trailer(s) and a majority of heavy single-unit trucks used regularly in combination with trailer(s).

6/ As estimated by the FHWA using the 1995 Nationwide Personal Transportation Survey (NPTS).

7/ Total fuel consumption figures are derived from state fuel tax records and reflect latest available data. Distribution by vehicle type is estimated by the FHWA based on miles per gallon for both diesel and gasoline powered vehicles using State-supplied data, the 1997 US, and other sources as a baseline. Kilometers and liters were calculated uing SI metric conversion factors.

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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