1-1 Transportation Network Length
Wednesday, December 24, 2014
1-1 Transportation Network Length
miles
| Mode | 2002 | 2012 |
|---|---|---|
| Highway | ||
| Public roads | 3,966,485 | 4,092,730 |
| Public road lanesa | 8,295,171 | 8,606,003 |
| Pipeline | ||
| Gas distribution | 1,899,845 | 2,139,071 |
| Gas transmission and gathering | 325,741 | 319,856 |
| Rail | ||
| Class I freight railroad | 100,125 | 95,264 |
| Amtrak | 23,000 | 21,334 |
| Transit | ||
| Commuter railb | 6,831 | 7,722 |
| Heavy railb | 1,572 | 1,622 |
| Light railb | 960 | 1,724 |
| Water | ||
| Navigable waterwaysc | 25,000 | 25,000 |
aMeasured in lane-miles. bMeasured in directional route-miles. cEstimated length of domestic waterways.
Sources: Highway, Rail, Transit, Water–As cited in U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics, tables 1-1, 1-6, and 1-10, available at www.bts.gov as of September 2014. Pipeline–U.S. Department of Transportation, Pipeline and Hazardous Materials Administration, available at phmsa.dot.gov/pipeline/library/data-stats as of September 2014.