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NOTE: The Bureau of Transportation Statistics computes the Air Travel Price Index values using...
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NOTES: Data for modes not included in these figures are in table 15-8 in appendix B.The 1996 spike in total fatalities is the result primarily of an airline...
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NOTES: For consistency, aviation passenger-miles of travel (pmt) includes air carrier aviation only, as general aviation pmt 2002 data were not available when this report was...
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KEY: N = data are nonexistent; NPIAS = National Plan of Integrated Airport Systems.
NOTES: See box 2-B on the facing page for definitions of NPIAS...
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NOTES: Wait times for commerical and personal vehicles are recorded hourly. Daytime hours (between 8:00 am and 6:00 pm) are...
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KEY: TTI = Travel Time Index.
NOTE: The TTI is the ratio of peak period travel time to free-flow travel time. It expresses the average...
Natural disasters, accidents, labor disputes, terrorism, security breaches, and other incidents can result in major disruptions to the transportation system. Although comprehensive data on these interruptions are not available...
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NOTES: A minor injury is one in which the victim was treated and released. A serious injury is one in which the victim was either hospitalized or treated and...
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NOTE: 2004 data are preliminary. General aviation includes any civil aircraft operation that is not covered under 14 Code of Federal Regulations (CFR) Parts 121, 129, or 135,...
The condition of bridges nationwide has improved markedly since the early 1990s. Of the 590,853 roadway bridges in 2003, the Federal Highway Administration found that 14 percent were structurally deficient and 14 percent were functionally obsolete. About 33...