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TABLE A-2 Number of Air Carriers, Railroads,
Interstate Motor Carriers, Marine Vessel Operators and Pipeline Operators:
1995-2005
Excel | CSV
Air carriers |
96 |
96 |
96 |
96 |
94 |
91 |
87 |
83 |
80 |
83 |
85 |
Major air carriers |
11 |
12 |
13 |
13 |
13 |
15 |
15 |
15 |
14 |
14 |
17 |
Other air carriers |
85 |
84 |
83 |
83 |
81 |
76 |
72 |
68 |
66 |
69 |
68 |
Railroads |
541 |
553 |
550 |
559 |
555 |
560 |
571 |
552 |
549 |
556 |
560 |
Class I railroads |
11 |
10 |
9 |
9 |
9 |
8 |
8 |
7 |
7 |
7 |
7 |
Other railroads |
530 |
543 |
541 |
550 |
546 |
552 |
563 |
545 |
542 |
549 |
553 |
Interstate motor
carriers |
346,000 |
379,000 |
417,000 |
477,486 |
517,297 |
560,393 |
592,909 |
600,104 |
674,314 |
677,317 |
679,744 |
Marine vessel
operators |
1,381 |
1,348 |
1,311 |
1,235 |
1,174 |
1,114 |
1,063 |
877 |
798 |
767 |
773 |
Pipeline operators |
2,387 |
2,346 |
2,301 |
2,260 |
2,260 |
2,172 |
2,128 |
2171 |
2196 |
2216 |
2166 |
Hazardous gas
transmission |
217 |
225 |
237 |
243 |
239 |
237 |
232 |
222 |
235 |
275 |
292 |
Natural gas transmission |
975 |
971 |
957 |
889 |
885 |
844 |
816 |
900 |
925 |
913 |
945 |
Natural gas distribution |
1,444 |
1,397 |
1,365 |
1,375 |
1,393 |
1,363 |
1,341 |
1,331 |
1,309 |
1,318 |
1,291 |
NOTES: Air carrier groups are categorized based on their annual operating
revenues as major, national, large regional, and medium regional. The thresholds were last adjusted July 1,
1999, and the threshold for major air carriers is currently $1 billion. The
other air carrier category contains all national, large regional, and medium
regional air carriers. Interstate motor
carrier figures are for the fiscal year,
October through September. The Federal
Motor Carrier Safety Administration deletes motor carriers from the Motor
Carrier Management Information System (MCMIS) when they receive an official
notice of a change in status. This
most often occurs when a safety audit or compliance review is attempted. As a result, inactive carriers may be
included in the MCMIS. There is some overlap among the operators for the
pipeline modes so the total number of pipeline operators is lower than the
sum for the three pipeline modes.
SOURCES: Various sources, as cited in U.S. Department of Transportation, Research and Innovative
Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics 2007, table 1-2, available at http://www.bts.gov/, as of April
2007.
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