Box 1-A Overview of the U.S. Transportation System - Note: Box A-1 was revised on Aug. 19, 2013

Excel

  2005 2011 Percent change
POPULATION (millions) 296 312 5.4
AIR (Civil)      
Extent      
Public use airports 5,270 5,171 -1.9
Commercial service airports 575 547 -4.9
Private use airports and landing fields 14,584 14,339 -1.7
Aircraft and use (domestic)      
Air carrier passenger/cargo aircrafts 8,225 7,185 -9.7
Air carrier airplane miles flown, billions 6.7 6.0 -10.6
Passenger enplanements, millions 657 638 -2.9
RPM, billionsa 569 564 -1.0
Freight ton-miles (revenue producing, scheduled and unscheduled), billions 14.9 11.9 -20.4
General aviation aircraft 224,352 222,520 -0.4
HIGHWAYS      
Extent      
Public Roads:      
Miles of public roads, millions 4.0 4.1 2.1
Lane miles of public roads, millions 8.4 8.6 2.3
Bridges 590,553 605,087 2.5
Personal vehicles and use      
Cars, SUVs, vans, pickups      
Vehicles, millions 231.9 230.2 (2010) -0.6
VMT, billionsb U 2,647.7 (2010)  
PMT, billionsc U 3,645.4 (2010)  
Motorcycles      
Vehicles, millions 6.2 8.2 (2010) 31.9
VMT, billions U 18.5 (2010)  
PMT, billions U 19.9 (2010)  
Commercial vehicles and buses      
Combination trucks      
Vehicles, millions 2.1 2.6 (2010) 22.3
VMT, billions U 175.9 (2010)  
Single-unit trucks      
Vehicles, millions 6.4 8.2 (2010) 28.5
VMT, billions U 110.7 (2010)  
Buses      
Vehicles, millions 807,053 846,051 (2010) 4.8
VMT, billions U 13.8 (2010)  
PMT, billions U 292.3 (2010)  
PIPELINE      
Extent      
Miles of pipeline      
Oil and hazardous liquid 166,760 182,135 9.2
Natural gas gathering and transmission 324,222 324,606 0.1
Natural gas distribution 1,164,997 1,233,000 5.8
RAIL      
Extent      
Miles of railroad operated by:      
Class I freight railroads 95,664 95,387 -0.3
Regional railroads 15,388 10,355 -32.7
Local railroads 29,197 32,776 12.3
Amtrak (intercity passenger service), route miles 22,007 21,225 -3.6
Equipment and use      
Class I freight cars in service 474,839 380,699 -19.8
Locomotives in service 22,779 24,250 6.5
Revenue ton-miles of freight, billion 1.7 1.7 1.9
Amtrak      
Stations 518 517 -0.2
Passenger cars 1,186 1,301 9.7
Locomotives in service 258 287 11.2
Revenue passengers carried, millions 25.1 31.3 25.0
Revenue passenger-miles, billions 5.4 6.7 24.0
TRANSIT      
Extent      
Directional route milesd      
Bus routes 166,279 231,372 39.1
Commuter rail 7,118 7,576 6.4
Heavy rail 1,622 1,617 -0.3
Light rail 1,188 1,741 46.5
Transit rail stations 2,899 3,155 8.8
Vehicles and use      
Transit buses      
Vehicles 62,284 61,606 -1.1
PMT, billions 19.6 20.7 5.7
Unlinked trips, billions 5.3 5.2 -1.9
Heavy rail cars      
Vehicles 11,110 14,794 33.2
PMT, billions 14.4 17.3 20.1
Unlinked trips, billions 2.8 3.6 29.9
Commuter rail cars and locomotives      
Vehicles 6,290 6,971 10.8
PMT, billions 9.5 11.3 19.5
Unlinked trips, billions 0.4 0.5 9.1
Light rail cars      
Vehicles 1,645 2,284 38.8
PMT, billions 1.7 2.4 39.1
Unlinked trips, billions 0.4 0.5 27.1
Demand responsive vehicles (e.g., paratransit)      
Vehicles 28,346 31,846 12.3
PMT, billions 0.7 0.9 19.0
Unlinked trips, billions 0.1 0.1 17.9
Other: (e.g., ferryboat, vanpool)      
Vehicles 11,622 18,965 63.2
PMT, billions 1.2 1.7 44.6
Unlinked trips, billions 0.1 0.2 9.1
WATER      
Extent      
Miles of navigable waterways 26,000 25,320 (2010) -2.6
Waterway facilities (including cargo handling docks) 9,399 8,197 -12.8
Lock chambers 257 239 -7.0
Lock sites 212 193 -9.0
Vessels      
Non-self-propelled vessels 33,152 31,412 (2010) -5.2
Self-propelled vessels 8,976 9,100 (2010) 1.4
U.S.-flag oceangoing privately-owned fleet 366 192 (2010) -47.5
Recreational boats, millions 12.9 12.2 -5.9

a Revenue Passenger Miles (RPM): Caculated by multiplying number of paying passengers by miles traveled.

b Vehicle-Miles Traveled (VMT): Highway—Miles of travel by all types of motor vehicles as determined by the states on the basis of actual traffic counts and established estimating procedures. Transit—The total number of miles traveled by transit vehicles. Commuter rail, heavy rail, and light rail report individual car-miles, rather than train-miles for vehicle-miles.

c Passenger-Miles Traveled (PMT): Total miles traveled by all passengers. For example, a car that carries 5 passengers a distance of 3 miles accrues 15 passenger-miles traveled.

d The mileage in each direction over which public transportation vehicles travel while in revenue service.

Key—PMT=Passenger-Miles Traveled; RPM=Revenue Passenger-Miles; SUV=Sport Utility Vehicle; U = unavailable, comparable data are unavailable due to a change in FHWA estimation methodology. VMT=Vehicle-Miles Traveled

NOTE: Data is taken from multiple sources, thus the number of significant digits may vary.

SOURCES: Population: U.S. Department of Commerce, U.S. Census Bureau, Population Estimates, Vintage 2009 and 2012, available at www.census.gov/popest as of March 2013. Air: airports, aircraft, VMT—U.S. Department of Transportation (USDOT), Federal Aviation Administration, as cited in USDOT, Research and Innovative Technology Administration (RITA), Bureau of Transportation Statistics (BTS), National Transportation Statistics (NTS), table 1-3, 1-11, 1-35, available at www.bts.gov as of May 2012. Enplanements, PMT, ton-miles—USDOT RITA BTS, Air Carrier Traffic Statistics, available at bts.gov as of March 2013. Highways: USDOT Federal Highway Administration (FHWA), Highway Statistics (multiple years) as cited in USDOT RITA BTS NTS, op cit., table 1-4 (roads), 1-6 (lane miles), 1-11 (vehicles), 1-35 (VMT), table 1-40 (PMT); bridges—USDOT FHWA Office of Bridge Technology, National Bridge Inventory Database, as cited in USDOT RITA BTS NTS, op cit., table 1-28. Pipeline: USDOT Pipeline and Hazardous Materials Administration, as cited in USDOT RITA BTS NTS, op cit., table 1-1 and 1-10. Rail: Association of American Railroads, Railroad Facts 2006 and 2012 (Washington, DC). Stations—Amtrak, as cited in USDOT RITA BTS NTS, op cit., table 1-7. Transit: USDOT Federal Transit Administration, National Transit Database, 2010 National Transit Profile Summary-All Agencies, available at www.ntdprogram.gov as of June 15, 2012. Water: Various sources as cited in USDOT RITA BTS NTS, op cit., table 1-1 (waterways) and table 1-11 (vessels) as of August 2013.