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Traffic Volume Trends - March 2002

Based on preliminary reports from the State Highway Agencies, travel during March 2002 on all roads and streets in the nation changed by +0.7 percent as compared to March 2001 resulting in estimated travel for the month at 232.7 billion vehicle-miles. This total includes 91.2 billion vehicle-miles on rural roads and 141.5 billion vehicle-miles on urban roads and streets.

Travel for the current month as well the cumulative yearly total on all roads and streets is shown below. Similar totals for each year since 1970 are also included.

Travel in Millions
All Roads and Streets
Year February Year to Date
197090,223247,837
197192,974258,429
1972 102,926283,664
1973 107,490296,721
1974100,736282,192
1975 106,070295,715
1976 114,284315,272
1977 119,960324,821
1978 125,035341,890
1979 131,406355,410
1980 125,179348,980
1981 127,798353,612
1982128,182345,451
1983 132,814364,078
1984 137,307377,319
1985 144,424387,912
1986 151,183407,707
1987 157,573433,488
1988 167,836458,463
1989 174,990481,473
1990 178,771495,930
1991 179,076490,316
1992183,778511,634
1993 187,869522,393
1994 196,190531,948
1995 201,227566,118
1996 204,172564,198
1997 211,952586,028
1998 214,222598,259
1999 220,763605,830
2000 232,874636,264
2001 231,162639,524
2002232,701652,145

Traffic Volume Trends is a monthly report based on hourly traffic count data. These data, collected at approximately 4,000 continuous traffic counting locations nationwide, are used to determine the percent change in traffic for the current month compared to the same month in the previous year. This percent change is applied to the travel for the same month of the previous year to obtain an estimate of travel for the current month.


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