U.S. Department of Transportation
Federal Highway Administration
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Conditions and Performance
Status
of the Nation's Highways, Bridges, and Transit:
2002 Conditions and Performance Report
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Exhibit 4-6:
Annual Hours of Traveler Delay by Urbanized Area Size, 1987 to 2000
Exhibit 4-6 is a chart that shows the annual hours of traveler delay by urbanized area size from 1987 to 2000. The vertical axis measures hours from 0 to 45 in increments of 5 hours. The horizontal axis measures each year from 1987 to 2000. There are four lines, one for each population category. The first line, for urban areas with populations of more than 3 million, started with 26.4 hours of traveler delay in 1987. The number climbed to 33.1 hours by 1990, then stayed fairly steady the next four years. In 1995, the number began rising again to 35.7 hours and climbed to a peak of 41.4 hours in 1999, finishing at 41.3 in 2000. The next three lines roughly parallel the first, but at lower numbers of traveler delay. The second line, for urban areas with populations of 1 to 3 million, started with 26.4 hours of traveler delay in 1987 and climbed steadily every year to a peak of 36.4 hours in 2000. The third line, for urban areas with populations of 500,000 to 1 million, started with 8.9 hours of traveler delay in 1987 and climbed steadily every year to a peak of 25.3 hours in 2000. And the fourth line, for urban areas with populations of less than 500,000, started with 4.8 hours of traveler delay in 1987 and climbed steadily every year to a peak of 15.2 hours in 2000.
Source: Texas Transportation Institute, 2001 Urban Mobility Study.
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