Number per 100,000 revenue vehicle-miles
NOTES: Interruptions of service include major and minor mechanical failures. If the vehicle operator was able to fix the problem and return the vehicle to service without assistance, the incident is not considered an interruption of service.
For definitions of service types, see Glossary
SOURCES: U.S. Department of Transportation, Federal Transit Administration, National Transit Library, 2001 Reporting Manual, available at http://www.ndprogram.com, as of April 2003; and American Public Transportation Association, Maintenance data tables, available at http://www.apta.com/research/stats/maint/index.cfm, as of April 2003.