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Table 2-12
Urban Congestion Indicators for 70 Urban Areas: Selected Years

Year Average roadway congestion index Annual delay per eligible driver (person-hours) Wasted fuel per eligible driver (gallons) Annual fuel wasted per urban area (million gallons)
1982 0.91 16 23 39
1986 1.01 22 32 54
1990 1.07 27 39 68
1992 1.09 30 44 76
1994 1.11 35 51 84
1995 1.12 37 54 91
1996 1.14 40 58 96

SOURCE: Texas Transportation Institute, Urban Roadway Congestion Annual Report: 1998 (College Station, TX: 1998), pp. 11-21.
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