Condition of U.S. Roadways by Functional System
KEY: N = data do not exist; U = data are not available.
National Transportation Statistics
4141
Average Age of Automobiles and Trucks in Operation in the United States
KEY: RV = recreational vehicle; U = data are not available.
a The 1969, 1977, 1983, and 1990 surveys do not include a separate category for sports utility vehicles (SUV), while the 1995, 2001, 2009 and 2017 surveys do. In 1990, most SUVs were classified as automobiles.
U.S. Airport Runway Pavement Conditions
KEY: NPIAS = National Plan of Integrated Airport Systems.
a The U.S. Department of Transportation, Federal Aviation Administration's (FAA's) National Plan of Integrated Airport Systems is composed of all commercial service airports, all reliever airports, and selected general aviation airports. It does not include over 1,000 publicly owned public-use landing areas, privately owned public-use airports, and other civil landing areas not open to the general public. NPIAS airports account for almost all enplanements. In 2005, there were approximately 16,500 non-NPIAS...
Number and Size of the U.S. Flag Merchant Fleet and Its Share of the World Fleet
KEY: DWT = deadweight tons; N = data do not exist; RO/RO = roll-on/roll-off vessels; U = data are not available.
National Transportation and Economic Trends
KEY: N = data do not exist; R = revised, U = data are not available.
a Annual estimates as of July 1 of each year. Data include Armed Forces abroad.
b Industrial Production Index covers manufacturing, mining, and utilities.
Number of Trucks by Weight
KEY: lb = pound.
Production, Production Shares, and Production-Weighted Fuel Economies of New Domestic and Imported Automobiles
KEY: mpg = miles per gallon; P = preliminary; R = revised; SUV = sport utility vehicle; U = data are not available.
Sales of Hybrid Vehicles in the United States
KEY: U = data are not available.
New and Used Passenger Car and Light Truck Sales and Leases
KEY: R = revised; U = data are not available.
aNew vehicle leases are sold by the dealer to a finance company that manages the lease, causing them to be included by default in most car sales figures.
b Used vehicle sales include sales from franchised dealers, independent dealers, and casual sales.
c Includes leased vehicles.