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Traffic Volume Trends - December 2002

Based on preliminary reports from the State Highway Agencies, travel during December 2002 on all roads and streets in the nation changed by +1.4 percent as compared to December 2001 resulting in estimated travel for the month at 231.3 billion vehicle-miles. This total includes 89.5 billion vehicle-miles on rural roads and 141.6 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 December Year to Date
1970 89,911 1,120,328
1971 95,515 1,185,616
1972 101,040 1,268,363
1973 98,856 1,308,287
1974 105,083 1,289,644
1975 107,945 1,330,073
1976 113,030 1,409,162
1977 116,257 1,463,408
1978 124,595 1,548,211
1979 123,226 1,529,132
1980 124,798 1,520,856
1981 124,421 1,550,269
1982 127,139 1,592,481
1983 129,776 1,649,108
1984 136,095 1,716,770
1985 141,584 1,774,763
1986 149,628 1,838,240
1987 155,580 1,924,328
1988 164,798 2,025,586
1989 167,530 2,107,040
1990 168,621 2,147,501
1991 172,782 2,172,214
1992 180,999 2,247,152
1993 186,828 2,296,705
1994 193,087 2,357,587
1995 193,341 2,422,776
1996 201,462 2,482,201
1997 207,322 2,560,373
1998 216,303 2,625,363
1999 221,465 2,679,459
2000 218,672 2,749,803
2001 228,087 2,781,462
2002 231,262 2,829,336

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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