2-3 Passenger-Miles Traveled
millions
Mode | 2003 | 2013 |
---|---|---|
Air | ||
U.S. air carrier, domestic | 505,602 | 589,692 |
Highway | ||
Light-duty vehiclea | * | 3,688,218 |
Motorcycle | * | 21,937 |
Truck | * | 275,018 |
Bus | * | 321,544 |
Passenger rail | ||
Amtrakb | 5,680 | 7,283 |
Commuter rail | 9,555 | 11,736 |
Heavy rail | 13,606 | 18,005 |
Light railc | 1,476 | 2,565 |
*2003 highway data are omitted because they are not comparable to 2013 data due to a change in vehicle occupancy rates derived from National Household Travel Surveys.
aIncludes passenger cars, light trucks, vans, and sport utility vehicles. bMeasured in revenue passenger-miles. cLight rail was revised beginning in 2011.
Source: As cited in U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics, table 1-40, available at www.bts.gov as of September 2015.