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Table 1-32M: U.S. Vehicle-Kilometers
(Millions)
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Air |
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Air
carrier, large certificated, domestic, all services |
1,381 |
1,825 |
3,328 |
3,135 |
4,060 |
4,902 |
6,378 |
6,202 |
6,429 |
6,690 |
7,049 |
7,450 |
7,743 |
7,903 |
8,103 |
8,582 |
9,115 |
8,929 |
9,039 |
9,793 |
10,544 |
10,806 |
10,652 |
General aviationa |
2,847 |
4,123 |
5,161 |
6,820 |
8,375 |
7,520 |
7,319 |
7,081 |
5,576 |
5,235 |
5,404 |
6,107 |
5,671 |
6,239 |
N |
N |
N |
N |
N |
N |
N |
N |
N |
Highwayb, total |
1,156,735 |
1,428,795 |
1,785,928 |
2,136,668 |
2,457,943 |
2,856,306 |
3,451,016 |
3,495,576 |
3,616,439 |
3,695,662 |
3,794,170 |
3,898,951 |
4,000,585 |
4,122,648 |
4,235,024 |
4,330,835 |
4,420,747 |
4,501,797 |
4,595,495 |
4,651,728 |
(R) 4,771,364 |
4,811,628 |
U |
Passenger carb,c |
944,704 |
1,163,066 |
1,475,286 |
1,663,981 |
1,788,940 |
2,006,527 |
2,266,384 |
2,185,787 |
2,207,326 |
2,212,380 |
2,262,881 |
2,314,710 |
2,365,501 |
2,418,129 |
2,493,802 |
2,525,222 |
2,575,412 |
2,620,546 |
2,669,055 |
2,690,950 |
(R) 2,735,708 |
2,719,735 |
U |
Motorcyclec |
h |
h |
4,794 |
9,059 |
16,438 |
14,622 |
15,381 |
14,771 |
15,381 |
15,942 |
16,480 |
15,767 |
15,965 |
16,224 |
16,549 |
17,033 |
16,848 |
15,512 |
15,372 |
15,413 |
(R) 16,290 |
17,333 |
U |
Other 2-axle 4-tire vehicleb |
h |
h |
198,410 |
322,995 |
468,214 |
629,191 |
924,682 |
1,045,098 |
1,137,586 |
1,200,168 |
1,230,559 |
1,271,428 |
1,314,094 |
1,369,132 |
1,397,353 |
1,450,054 |
1,485,519 |
1,517,945 |
1,554,681 |
1,583,746 |
(R) 1,653,060 |
1,705,245 |
U |
Truck,
single-unit 2-axle 6-tire or more |
158,602 |
207,234 |
43,583 |
55,693 |
64,073 |
73,130 |
83,527 |
85,131 |
86,702 |
91,366 |
98,627 |
100,914 |
103,114 |
107,654 |
109,469 |
113,143 |
113,459 |
116,594 |
122,094 |
125,138 |
(R) 126,239 |
127,418 |
U |
Truck,
combination |
46,436 |
50,960 |
56,543 |
75,195 |
110,527 |
125,630 |
151,827 |
155,535 |
160,146 |
165,949 |
175,309 |
185,800 |
191,349 |
200,499 |
206,574 |
213,051 |
217,294 |
219,811 |
223,276 |
225,566 |
(R) 229,122 |
231,202 |
U |
Bus |
6,994 |
7,533 |
7,313 |
9,745 |
9,751 |
7,207 |
9,215 |
9,254 |
9,299 |
9,857 |
10,314 |
10,332 |
10,562 |
11,011 |
11,277 |
12,331 |
12,215 |
11,389 |
11,016 |
10,916 |
(R) 10,945 |
10,696 |
U |
Transitd, total |
3,449 |
3,232 |
3,030 |
3,502 |
3,681 |
4,492 |
5,217 |
5,321 |
5,399 |
5,528 |
5,580 |
5,713 |
5,875 |
6,028 |
6,105 |
6,393 |
6,568 |
6,753 |
6,883 |
(R)
7,022 |
(R) 7,195 |
U |
U |
Motor buse |
2,537 |
2,460 |
2,268 |
2,456 |
2,699 |
2,998 |
3,428 |
3,487 |
3,505 |
3,556 |
3,479 |
3,514 |
3,574 |
3,612 |
3,500 |
3,663 |
3,726 |
3,825 |
3,880 |
3,896 |
(R) 3,977 |
U |
U |
Light
rail |
120 |
67 |
54 |
38 |
28 |
27 |
39 |
44 |
46 |
45 |
55 |
56 |
61 |
66 |
70 |
78 |
85 |
87 |
98 |
103 |
(R) 108 |
U |
U |
Heavy
rail |
629 |
636 |
655 |
681 |
619 |
725 |
864 |
848 |
846 |
840 |
856 |
865 |
874 |
898 |
910 |
930 |
958 |
979 |
999 |
1,014 |
(R)
1,014 |
U |
U |
Trolley
bus |
162 |
69 |
53 |
25 |
21 |
25 |
22 |
22 |
22 |
21 |
22 |
22 |
22 |
23 |
22 |
23 |
24 |
21 |
22 |
22 |
(R) 22 |
U |
U |
Commuter
rail |
N |
N |
N |
278 |
288 |
295 |
342 |
346 |
352 |
360 |
371 |
383 |
389 |
403 |
418 |
428 |
436 |
446 |
457 |
460 |
(R) 474 |
U |
U |
Demand responsivee |
N |
N |
N |
N |
N |
398 |
492 |
539 |
585 |
653 |
746 |
815 |
882 |
942 |
1,080 |
1,156 |
1,221 |
1,270 |
1,292 |
1,390 |
(R) 1,432 |
U |
U |
Ferry
boat |
N |
N |
N |
N |
i |
i |
4 |
4 |
4 |
4 |
3 |
5 |
4 |
5 |
5 |
5 |
5 |
5 |
5 |
6 |
(R) 6 |
U |
U |
Other |
N |
N |
N |
24 |
25 |
24 |
26 |
31 |
39 |
48 |
47 |
55 |
69 |
80 |
101 |
111 |
114 |
121 |
129 |
(R) 136 |
(R) 149 |
U |
U |
Rail |
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Class
I freight, train-kilometers |
650 |
678 |
687 |
649 |
689 |
558 |
612 |
604 |
628 |
653 |
710 |
737 |
754 |
764 |
764 |
789 |
811 |
804 |
804 |
830 |
861 |
881 |
U |
Class
I freight, car-kilometers |
45,335 |
47,212 |
48,103 |
44,508 |
47,117 |
40,105 |
42,099 |
41,244 |
42,049 |
43,264 |
45,842 |
48,897 |
51,040 |
50,952 |
52,556 |
54,478 |
55,667 |
55,109 |
55,812 |
57,220 |
59,660 |
60,692 |
U |
Intercity/Amtrakf, train-kilometers |
336 |
277 |
150 |
48 |
48 |
48 |
53 |
55 |
55 |
56 |
55 |
51 |
48 |
51 |
53 |
55 |
56 |
58 |
61 |
60 |
60 |
58 |
U |
Intercity/Amtrakf, car-kilometers |
3,554 |
2,857 |
1,110 |
407 |
378 |
404 |
484 |
504 |
494 |
488 |
489 |
470 |
444 |
463 |
502 |
550 |
592 |
608 |
609 |
534 |
496 |
426 |
U |
Total train-kilometersg |
987 |
954 |
837 |
697 |
737 |
607 |
665 |
658 |
682 |
709 |
764 |
789 |
803 |
816 |
818 |
843 |
867 |
862 |
865 |
891 |
920 |
940 |
U |
KEY: N = data do not exist; R = revised; U = data
are not available.
a All operations other than
those operating under 14 CFR 121 and 14 CFR 135. Data for 1996 are estimated
using new information on nonrespondents and are not comparable to earlier
years. Mileage in source is multiplied by 1.151 to convert to nautical-miles for
1985-1997.
b In July 1997, the FHWA
published revised vehicle-miles data for the highway modes for many years.
The major change reflected the reassignment of some vehicles from the
passenger car category to the other 2-axle 4-tire vehicle category. This category was calculated prior to
rounding.
c U.S. Department of
Transportation, Federal Highway Administration (FHWA), provides data
separately for passenger car and motorcycle in its annual Highway Statistics
series. However, the 1995 summary report provides updated data for passenger
car and motorcycle combined. Passenger
car figures in this table were computed by U.S. Department of Transportation,
Bureau of Transportation Statistics, by subtracting the most current
motorcycle figures from the aggregate passenger car and motorcycle figures.
d Prior to 1985, excludes
demand responsive and most rural and smaller systems funded via Sections 18
and 16(b)2, Federal Transit Act. The
series is not continuous between 1980 and 1985. Transit rail modes are
measured in car-miles. Car-miles measure individual vehicle-miles in a
train. A 10-car train traveling 1 mile
would equal 1 train-mile and 10 car-miles.
e Motor bus and demand
responsive figures are also included in the bus figure for highway.
f Amtrak began operations in
1971.
g Although both train-miles and car-miles are shown for rail,
only train-miles are included in the total.
A train-mile is the movement of a train, which can consist of multiple
vehicles (cars), the distance of 1 mile. This differs from a vehicle-mile, which is the movement of 1
vehicle the distance of 1 mile. A
10-vehicle train traveling 1 mile would be measured as 1 train-mile and 10
vehicle-miles. Caution should be used when comparing train-miles with vehicle
miles.
h 1960-65, motorcycle data
are included in passenger car, and other 2-axle 4-tire vehicle data included
in single-unit 2-axle 6-tire or more truck.
i Ferry boat included with
other.
NOTE
Numbers may not add to totals due to rounding.
SOURCES
Air:
Air carrier:
1960: Civil Aeronautics Board, Handbook
of Airline Statistics 1969 (Washington,
DC: 1970), part III, table 2.
1965-70: Ibid., Handbook of Airline
Statistics 1973 (Washington, DC: 1974),
part III, table 2.
1975-80: Ibid., Air Carrier Traffic
Statistics (Washington, DC: 1976, 1981), p. 4 (December 1976) and
p. 2 (December 1981).
1985-2006: U.S. Department of Transportation, Bureau of
Transportation Statistics, Office of Airline Information, Air Carrier Traffic Statistics (Washington, DC: Annual December issues), p. 3, line 25 plus line 46.
General aviation:
1960-65: U.S. Department of Transportation, Federal Aviation
Administration, FAA Statistical Handbook of
Aviation 1972 (Washington, DC: 1973), table 9.10.
1970-75: U.S. Department of Transportation, Federal Aviation
Administration, FAA Statistical Handbook of
Aviation 1976 (Washington, DC: 1976), table 8-5.
1980: U.S. National Transportation Safety Board estimate,
personal communication, Dec. 7, 1998.
1985-92: Ibid., General Aviation
Activity and Avionics Survey (Washington,
DC: Annual issues), table 3.3.
1993-97: Ibid., General Aviation and
Air Taxi Activity and Avionics Survey (Washington,
DC: Annual issues), table 3.3.
Highway:
Passenger car and motorcycle:
1960-94: U.S. Department of Transportation, Federal Highway
Administration, Highway Statistics Summary to 1995, Internet site
http://www.fhwa.dot.gov/ohim/summary95/index.html, as of July 28, 2000, table
VM-201A.
1995-2005: Ibid., Highway Statistics (Washington, DC: Annual
issues), table VM-1, and Internet site
http://www.fhwa.dot.gov/policy/ohpi/index.htm.
Motorcycle:
1970-80: U.S. Department of Transportation, Federal Highway
Administration, Highway Statistics, Summary to
1985 (Washington, DC: 1986), table
VM-201A.
1985-2005: Ibid., Highway
Statistics (Washington, DC: Annual issues), table VM-1, and Internet site
http://www.fhwa.dot.gov/policy/ohpi/index.htm.
Other 2-axle 4-tire vehicle:
1970-94: U.S. Department of Transportation, Federal Highway
Administration, Highway Statistics Summary to 1995, Internet site
http://www.fhwa.dot.gov/ohim/summary95/index.html, as of July 28, 2000, table
VM-201A.
1995-2005: Ibid., Highway Statistics (Washington, DC: Annual
issues), table VM-1, and Internet site
http://www.fhwa.dot.gov/policy/ohpi/index.htm.
Single-unit 2-axle 6-tires or more truck, combination truck, and bus:
1960-94: U.S. Department of Transportation, Federal Highway
Administration, Highway Statistics Summary to 1995
, Internet site
http://www.fhwa.dot.gov/ohim/summary95/index.html, as of July 28, 2000, table
VM-201A.
1995-2005: Ibid., Highway Statistics (Washington, DC: Annual
issues), table VM-1, and Internet site
http://www.fhwa.dot.gov/policy/ohpi/index.htm.
Transit:
1960-2004: American Public Transit Association, Public Transportation Fact Book (Washington, DC: Annual issues), table 12, 15, and similar
tables in earlier editions.
Rail:
Class I rail freight train- and car-miles:
1960-2005: Association of American Railroads, Railroad Facts 2006 (Washington,
DC: 2006), p. 33 (train-miles) and p. 34 (car-miles).
Intercity/Amtrak train-miles:
1960-70: Association of American Railroads, Yearbook of Railroad Facts (Washington, DC: 1975), p. 39.
1975-2001: Amtrak, Amtrak Annual
Report, Statistical Appendix (Washington,
DC: Annual issues).
2002-05: Association of American Railroads, Railroad Facts 2006
(Washington, DC: 2006), p. 77.
Intercity/Amtrak car-miles:
1960-75: Association of American Railroads, Yearbook of Railroad Facts (Washington, DC: 1975), p. 40.
1980-2000: Amtrak, Amtrak Corporate Reporting, Route
Profitability System, personal communication, 2001.
2001-05: Association of American Railroads, Railroad Facts 2006
(Washington, DC: 2006), p. 77.
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