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Acknowledgments US Department of Transportation - BTS

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d The number <strong>of</strong> Unlinked passenger trips is equivalent to the number <strong>of</strong> passengers who board public transit vehicles. Passengers are counted each time they board a vehicle regardless <strong>of</strong>how many vehicles are necessary for a passenger to get to their destination.eRates are based on total incidents including accidents and were calculated by dividing the number <strong>of</strong> fatalities, injuries, and incidents in this table by the number <strong>of</strong> unlinked passenger trips.f In 2002 the drop in the number <strong>of</strong> Incidents and Injuries is due largely to a change in definitions by the Federal Transit Administration, particularly the definition Injuries <strong>of</strong> . Only Injuriesrequiring immediate medical treatment away from the scene now qualify as reportable. Previously, any Injury was reportable.NOTESData are provided only for transit systems that furnished safety data for inclusion in the U.S. <strong>Department</strong> <strong>of</strong> <strong>Transportation</strong>, Federal Transit Administration Transit Safety and SecurityStatistics and Analysis annual reports. Data covers only directly operated urban transit systems. Vehicle-miles for all transit systems including nonurban and purchased can be found in thevehicle-miles table in chapter 1.Prior to the 2000 edition, Transit Safety and Security Statistics and Analysis Report was entitled Safety Management Information Statistics (SAMIS) annual report.Analysts for the FTA believe the change in reporting requirements in 2002 may have resulted in unreliable data in that year, particularly Injuries for and Incidents . The reliability <strong>of</strong> reporting isbelieved to be much better in 2003 and is expected to improve in the future.SOURCESAll modes except for commuter rail:1990-2001: U.S. <strong>Department</strong> <strong>of</strong> <strong>Transportation</strong>, Federal Transit Administration, 2004 Transit Safety and Security Statistics and Analysis Report (Cambridge, MA: 2005).2002-10: Ibid, National Transit Database, Safety and Security Time Series Data (Washington, DC: March 2010 Issue), available at http://www.ntdprogram.gov/ntdprogram/data.htm as <strong>of</strong>Sept. 14, 2011.Commuter rail:1990-2000: U.S. <strong>Department</strong> <strong>of</strong> <strong>Transportation</strong>, Federal Transit Administration, 2004 Transit Safety and Security Statistics and Analysis Report (Cambridge, MA: 2005).2001-09: U.S. <strong>Department</strong> <strong>of</strong> <strong>Transportation</strong>, Federal Railroad Administration, Rail Accident Incident Reporting System (RAIRS).

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