Number per 100,000 revenue vehicle-miles
KEY: N = data are nonexistent.
NOTES: Data from 1995-2000 and 2001-2003 are not comparable due to a methodology
of service include major and minor
mechanical failures. Since 2001, if the vehicle operator was able to fix the problem and return
the vehicle to service without assistance, the incident has not been
considered an interruption of service.
generally includes automated guideway, Alaska
Railroad, cable car, ferryboat, inclined plane, jitney, trolleybus, aerial
tramway, and vanpool. However, aerial
tramway data are not included prior to 2003, Alaska Railroad data are not
included prior to 2001, and jitney data are not included in 2000 or
For definitions of service types, see Glossary
SOURCES: U.S. Department of Transportation (USDOT), Research and Innovative Technology Administration, Bureau of Transportation Statistics, calculations based on various data. Revenue vehicle-miles——USDOT, Federal Transit Administration (FTA), National Transit Database, 2003 National Transit Summaries and Trends, 2003 NTST Table of Charts, available at http://www.ntdprogram.com/, as of April 2005. 1995-2002 interruptions of service——USDOT, FTA, National Transit Database, 2003 Data Tables, Revenue Vehicle Maintenance Performance table, available at http://www.ntdprogram.com/, as of April 2005. 2003 interruptions of service—American Public Transportation Association, personal communication, April 2005.