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Age of Rail, Aircraft, and Maritime Vessel Fleets
The
average age of Amtrak locomotives and passenger train cars fluctuated in a
narrow range for most of the 1990s (figure 2-12). The average age of
locomotives was 14 years in fiscal year 2001, up 8 percent from 13 years in
fiscal year 1991. Meanwhile, the age of Amtrak railcars dropped from 21 to 19
years over this period. Of the 20,744 Class I freight locomotives in service in
2003, 33 percent were built before 1980, 17 percent between 1980 and 1989, and
50 percent from 1990 onwards [1].
Over
32 percent of the U.S.-flag vessel fleet (almost 13,000 vessels) was 25 years
old or more in 2003, up from 19 percent (over 7,500 vessels) in 1993 [2].
However, during the same period, the percentage of the fleet less than 6 years
old grew from 11 percent (more than 4,300 vessels) to 16 percent (nearly 6,400
vessels). Of the various components of the fleet, the offshore support fleet
was one of the youngest in 2003 with 20 percent of its vessels under 6 years
old and 24 percent over 25 years old. The towboat fleet had the highest
proportion of older ships (60 percent) in 2003 (figure 2-13).
The
average age of
U.S.
commercial aircraft was
12 years in 2002, up from 11 years in 1992 (figure 2-14). Commercial airlines
are air carriers providing scheduled or nonscheduled passenger or freight
service, including commuter and air taxi on-demand services. Major
airlines-those with $1 billion or more in annual revenues-accounted for 78
percent of commercial aircraft in 2002 [3]. These aircraft were approximately
one year younger on average than all commercial aircraft during the 1990s, but
the gap narrowed in 2001, and by 2002 the average age of both categories was
the same (12 years).
Sources
1. Association of American Railroads, Railroad Facts 2004 (Washington, DC: 2004), pp. 49-50.
2. U.S. Department of Transportation (USDOT),
Research and Innovative Technology Administration, Bureau of Transportation
Statistics (BTS), National
Transportation Statistics 2005, table 1-31, available at http://www.bts.gov/, as
of June 2005.
3. ______. calculations using data from USDOT, BTS, Form 41, Schedule B-43, 1992-2002.
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