Box 1-B Condition of the U.S. Transportation System

Excel

  2005 2011 Percent Change
AIR      
Airport runway condition      
All NPIAS Airports, percent      
Good condition 75 80 5
Fair condition 21 18 -3
Poor condition 4 2 -2
Commercial Service Airports, percent      
Good condition 79 82 3
Fair condition 19 16 -3
Poor condition 2 2 0
Average age of aircraft      
All commercial aircraft 11.3 13.3 17.7
Major airlines aircraft 11.3 13.3 17.7
HIGHWAYS      
Highway surface condition, percent      
Mileage with a International Roughness Indexa over 171      
Rural Routes      
Interstates 1.7 1.7 (2009) -0.1
Other principal arterials 3.6 3.1 (2009) -0.6
Minor arterials 5.4 6.2 (2009) 0.8
Collectors 16.1 16.2 (2009) 0.0
Urban Routes      
Interstates 6.0 5.0 (2009) -1.0
Other freeways and expressways 7.8 6.5 (2009) -1.4
Other principal arterials 27.4 26.4 (2009) -1.1
Minor arterials 33.6 30.2 (2009) -3.4
Collectors 49.7 44.8 (2009) -5.0
Condition of highway bridges, percent      
All structurally deficient bridges 12.9 10.7 -2.1
Urban structurally deficient 2.1 1.9 -0.2
Rural structurally deficient 10.7 8.8 -1.9
All functionally obsolete 13.6 12.1 -1.5
Urban functionally obsolete 5.3 5.4 0.0
Rural functionally obsolete 8.3 6.8 -1.5
Average age of vehicles      
Passenger cars 10.1 11.1 9.9
Light trucks 8.7 10.4 19.5
All light vehicles 9.5 10.8 13.7
RAIL      
Rebuilt equipment, percent      
Rebuilt locomotives as share of all new locomotive units 9.22 29.085457 19.8648
Rebuilt freight cars as share of all new freight cars 2.2 0.255242 -1.9428
Age of locomotives, percent      
< 5 years old (2005), < 6 years old (2011) 22.6 20 -2.6393
6-10 years old (2005), 7-11 years old (2011) 19.1 17.6 -1.4878
11-15 years old (2005), 12-16 years old (2011) 12.2 18.395876 6.17848
16-20 years old (2005), 17-21 years old (2011) 7.84 9.7608247 1.92027
> 20 years old (2005), > 21 years old (2011) 38.2 34.243299 -3.9717
TRANSIT (urban)      
Average age of vehicles      
Heavy-rail passenger cars 20.8 19.2 -7.7
Commuter-rail passenger coaches 18.6 19.4 4.3
Full-size transit buses 7.4 7.9 6.8
Light-rail vehicles 14.5 16.5 13.8
Transit vans 3.4 3.5 2.9
Ferry boats 25.6 20.3 -20.7
WATER      
Age of locks      
Average age 55.0 50.1 -8.9
Age of U.S. flag vessels, percent      
< 5 years old 13.9 18.7 (2010) 4.8
6 to 10 years old 17.0 11.5 (2010) -5.4
11 to 15 years old 9.6 17.1 (2010) 7.4
16 to 20 years old 5.0 8.8 (2010) 3.7
21 to 25 years old 18.0 4.3 (2010) -13.6
> 25 years old 36.6 39.6 (2010) 3.0

a International Roughness Index values are based on objective measurements of pavement roughness. A low IRI represents a smooth riding roadway.

KEY: NPIAS—National Plan of Integrated Airport Systems

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

SOURCES: Air—U.S. Department of Transportation, Federal Aviation Administration, as cited in U.S. Department of Transportation (USDOT), Research and Innovative Technology Administration (RITA), Bureau of Transportation Statistics (BTS), National Transportation Statistics (NTS), table 1-25, available at www.bts.gov as of January 2012. USDOT, RITA, BTS, Office of Airline Information, TranStats Database, Form 41, Schedule B-43, special tabulation, October 2010. Highways—U.S. Department of Transportation, Federal Highway Administration, as reported in USDOT RITA BTS NTS, op cit., table 1-26 (vehicles), table 1-27 (Highway surface condition), and table 1-28 (Bridges). Rail—Association of American Railroads, Railroad Facts 2006 and 2012 (Washington, DC). Transit—U.S. Department of Transportation, Federal Transit Administration, as reported in USDOT RITA BTS NTS, op cit., table 1-29. Water—U.S. Army Corps of Engineers, Navigation Data Center, General Characteristics of Locks and Waterborne Transportation Lines of the United States available at www.ndc.iwr.usace.army.mil as of January 2013.