|U.S. air carrier||50||51||56||46||41||54||30||40||33||28||28|
|On-demand air taxi||77||74||80||72||60||73||66||65||52||62||56|
|Hazardous liquid pipeline||153||167||146||130||150||133||145||143||120||119||139|
|Highway-rail grade crossing||3,508||3,489||3,502||3,237||3,077||2,977||3,085||3,064||2,997||2,771||2,405|
|Highway-rail grade crossing||106||140||148||101||190||125||178||148||141||174||114|
KEY: U = data are unavailable.
NOTES: U.S. air carriers includes all carriers who operate under 14 CFR 121, all scheduled and nonscheduled service. Since Mar. 20, 1997, 14 CFR 121 includes only aircraft with 10 or more seats formerly operated under 14 CFR 135. This change makes it difficult to compare pre-1997 data for 14 CFR 121 and 14 CFR 135 with more recent years' data. Commuter carriers include all scheduled service operating under 14 CFR 135. Since Mar. 20, 1997, 14 CFR 121 includes only aircraft with 10 or more seats formerly operated under 14 CFR 135. This change makes it difficult to compare pre-1997 data for 14 CFR 121 and 14 CFR 135 with more recent years' data. On-demand air taxi includes all nonscheduled service operating under 14 CFR 135. General aviation includes all operations other than those operating under 14 CFR 121 and 14 CFR 135.
For Highway totals the U.S. Department of Transportation, National Highway Traffic Safety Administration uses the term "crash" instead of accident in its highway safety data. Highway crashes often involve more than one motor vehicle, hence "total highway crashes" is smaller than the sum of the components. Estimates of highway crashes are rounded to the nearest thousand in the source document. Highway numbers are not actual counts, but estimates of the actual counts. The estimates are calculated from data obtained from a nationally representative sample of crashes collected through NHTSA's General Estimates System (GES). Estimates should be rounded to the nearest 1,000. Estimates less than 500 indicate that the sample size was too small to produce a meaningful estimate and should be rounded to 0. Large trucks are defined as trucks over 10,000 pounds gross vehicle weight rating, including single-unit trucks and truck tractors. Light trucks are defined as trucks of 10,000 pounds gross vehicle weight rating or less, including pickups, vans, truck-based station wagons, and utility vehicles.
Railroad total includes Amtrak. Accidents and incidents resulting from freight and passenger rail operations including commuter rail. Highway-rail grade crossing total includes accidents and incidents occurring at highway-rail crossings resulting from freight and passenger rail operations including commuter rail. Railroad includes only train accidents. The Federal Railroad Administration defines a grade crossing as a location where a public highway, road, street, or private roadway, including associated sidewalks and pathways, crosses one or more railroad tracks at grade. The Federal Transit Administration defines two types of grade crossings: (1) At grade, mixed, and cross traffic crossings, meaning railway right-of-way over which other traffic moving in the same direction or other cross directions may pass. This includes city street right-of-way. (2) At grade with cross traffic crossings, meaning railway right-of-way over which no other traffic may pass, except to cross at grade-level crossings. This can include median strip rights-of-way with grade level crossings at intersecting streets.
Transit accident figures include collisions with vehicles, objects, and people, derailments / vehicles going off the road of Directly Operated (DO) modes only. Accident figures do not include fires and personal casualties. The drop in the number of accidents in 2002 is due largely to a change in definitions by the Federal Transit Administration, particularly the definition of injuries. Only injuries requiring immediate medical treatment away from the scene now qualify as reportable. Previously, any injury was reportable. Highway-rail grade crossing for transit includes accidents occurring at highway-rail grade crossings resulting from operations of public transit rail modes including commuter rail. Data for light rail crossings are: 1998 (66); 1999 (103); 2000 (106); 2001 (54); 2002 (112); 2003 (66); 2004 (107); 2005 (81); 2006 (74). 2007 and 2008 data for light rail crossings are unavailable. Transit only includes accidents occurring at highway-rail grade crossings resulting from operations of public transit rail modes excluding commuter rail.
SOURCES: Air: National Transportation Safety Board; Highway: National Highway Traffic Safety Administration; Pipeline: Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety; Railroad: Federal Railroad Administration; Transit: Federal Transit Administration; Waterborne: U.S. Department of Homeland Security, United States Coast Guard, as cited in U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, table 2-3, available at http://www.bts.gov/publications/national_transportation_statistics/ as of January 2010.