| ABOUT RITA | CONTACT US | PRESS ROOM | CAREERS | SITE MAP |
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Table 10
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| Mode | 1970 | 1980 | 1990 | 2000 | 2001 |
|---|---|---|---|---|---|
| Air carriers | 2,068 | 2,523 | 3,963 | R5,664 | 5,550 |
| General aviation | 3,207 | 5,204 | R4,548 | aN | aN |
| Passenger cars | 916,700 | 1,111,596 | R1,408,266 | R1,600,287 | 1,619,422 |
| Motorcycles | 2,979 | 10,214 | 9,557 | R10,469 | 9,529 |
| Other 2-axle, 4-tire vehiclesb | 123,286 | 290,935 | 574,571 | R923,059 | 937,839 |
| Trucks: | |||||
| Single-unit | 27,081 | 39,813 | 51,901 | R70,500 | 72,286 |
| Combination | 35,134 | 68,678 | 94,341 | R135,020 | 135,400 |
| Busesc | 4,544 | 6,059 | 5,726 | R7,590 | 6,986 |
| Raild: | |||||
| Transite | 441 | 403 | 561 | p648 | U |
| Commuter | N | 179 | 213 | p271 | U |
| Class 1 freight | 29,890 | 29,277 | 26,159 | 34,590 | U |
| Intercity/Amtrakf | 690 | 235 | 301 | 368 | U |
| Other transitg | N | 15 | 324 | p833 | U |
a The Federal Aviation Administration has estimated vehicle-miles for general aviation aircraft through 1997, relying in part on hours-flown survey data. Vehicle-miles estimates for subsequent years are not yet available.
b In July 1997, the USDOT, Federal Highway Administration, reassigned some vehicle-miles from "passenger car" to "other 2-axle, 4-tire."
c Includes municipally-owned transit, commercial, federal, and school buses.
e Includes light and heavy rail only.
f Fiscal year data. Amtrak began operations in 1971.
g Includes demand-responsive, ferry boat, and other transit not specified; 1980 data include "other transit" only.
Key: N = data do not exist; P = preliminary; R = revised.
Sources: Various sources, as cited in USDOT, Bureau of Transportation Statistics, National Transportation Statistics 2002 (Washington, DC: 2002), table 1-32. 2001 air carriers-USDOT, Bureau of Transportation Statistics, Air Carrier Traffic Statistics (Washington, DC: Annual December issues).