NOTE: Some of the data used to calculate 2002 injury rates are preliminary.
SOURCES: Injuries—U.S. Department of Transportation (USDOT), Bureau of Transportation
Statistics, National Transportation Statistics 2002, table 2-2 revised, available at
http://www.bts.gov/, as of January 2004.
Passenger-miles of travel (pmt)—USDOT, Federal Highway Administration, Highway Statistics 2002 (Washington, DC: 2003), table VM-1, also available at http://www.fhwa.dot.gov/policy/ohim/hs02/index.htm, as of March 2004.