An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Excel | CSV | Table Version
NOTES: Total includes other modes not shown, such as ferryboats, demand responsive, inclined planes, and trolley buses. See the Glossary for definitions...
Excel | CSV | Table Version
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Form 234 Delay Data for September 2001, tabulated Nov. 5, 2001.
Excel | CSV | Table Version
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics 2002 (Washington, DC: 2002...
Excel | CSV | Table Version
NOTES: Maintenance includes any work required to keep highways in usable condition that does not extend the service life of the roadway beyond the...
Excel | CSV | Table Version
KEY: BTU = British thermal units. The average heat content of motor gasoline is 129,024 BTU per gallon. One quadrillion BTU is equivalent to...
Motor vehicle crashes in the United States cost an estimated $231 billion1$820 per person or 2 percent of the Gross Domestic Product2 [1]. The largest components of the total cost (26 percent each) are market productivity—the cost of foregone...
Excel | CSV | Table Version
NOTE: Data are from the daily travel segment of the 2001 National Household Travel Survey. Long-distance travel data (i.e., trips of 50 miles or more collected during a 4-week...
Excel | CSV | Table Version
1 “Vacation” includes rest and relaxation.
NOTE: The 2001 National Household Travel Survey defined a trip as each time a person went from one...
Excel | CSV | Table Version
NOTE: EPA no longer estimates lead emissions. Modal shares in 2000 were: highway gasoline vehicles, 4.1%; aircraft, 95.9%.
...Natural disasters, accidents, labor disputes, terrorism, security breaches, and other unforeseeable incidents can result in major disruptions to the transportation system. Although a comprehensive account of these unpredictable...