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Highway Statistics 2001 OHPI > Highway Statistics > 2001 > Roadway Extent > Table VM-1

ANNUAL VEHICLE DISTANCE TRAVELED IN MILES AND RELATED DATA - 2001 1/

BY HIGHWAY CATEGORY AND VEHICLE TYPE

January 2011 Table VM-1
YEAR ITEM PASSENGER
CARS
MOTOR­CYCLES 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-miles)
2001 Interstate Rural 135966 1121 951 82356 8289 44936 218,322 53,225 273,619
2001 Other Arterial Rural 236337 1649 1133 146525 13992 27846 382,862 41,838 427,482
2001 Other Rural 231617 1608 2074 145380 14406 13177 376,997 27,583 408,262
2001 All Rural 603920 4378 4158 374261 36687 85959 978,181 122,646 1,109,363
2001 Interstate Urban 236985 1546 775 127990 8739 23951 364,975 32,690 399,986
2001 Other Urban 786460 3709 2136 440364 26968 26624 1,226,824 53,592 1,286,261
2001 All Urban 4/ 1023445 5255 2911 568354 35707 50575 1,591,799 86,282 1,686,247
2001 Total Rural and Urban 1,627,365 9,633 7,070 942,614 72,394 136,534 2,569,980 208,928 2,795,610
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 miles traveled per vehicle 11,824 1,965 9,432 11,197 12,693 63,381 11,586 26,589 11,879
2001 Person-miles of travel (millions) 6/ 2,556,481 11,760 150,042 1,678,853 85,489 161,169 4,235,334 246,658 4,643,793
2001 Fuel consumed (thousand gallons) 7/ 73,558,790 192,780 1,025,899 53,521,781 9,667,248 25,511,844 127,080,571 35,179,092 163,478,342
2001 Average fuel consumption per vehicle (gallons) 7/ 534 39 1,369 636 1,695 11,843 573 4,477 695
2001 Average miles traveled per gallon of fuel consumed 7/ 22.1 50.0 6.9 17.6 7.5 5.4 20.2 5.9 17.1

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 VIUS, and other sources as a baseline.

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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