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Traffic Volume Trends - September 2003

Based on preliminary reports from the State Highway Agencies, travel during September 2003 on all roads and streets in the nation changed by +1.3 percent as compared to September 2002 resulting in estimated travel for the month at 234.0 billion vehicle-miles. This total includes 94.2 billion vehicle-miles on rural roads and 139.8 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 September Year to Date
197095,254844,416
1971101,290892,021
1972108,072957,692
1973110,332991,961
1974109,125966,911
1975111,399999,889
1976119,4311,061,926
1977124,2031,101,277
1978131,3851,166,996
1979127,5761,150,907
1980127,4821,140,023
1981131,1851,167,829
1982136,3111,199,501
1983139,9381,241,588
1984146,0741,295,792
1985150,4241,337,720
1986155,4621,381,366
1987164,1841,446,236
1988171,0721,522,352
1989177,3261,587,193
1990178,4151,624,682
1991183,5941,641,294
1992190,9081,693,936
1993193,7651,729,762
1994200,5111,771,563
1995203,8661,828,558
1996207,6041,865,442
1997213,5471,929,411
1998219,4611,969,360
1999224,3062,002,507
2000227,3282,069,136
2001224,5712,083,897
2002230,9412,125,319
2003234,0422,135,592
Traffic Volume Trends is a monthly report based on hourly traffic count data. These data, collected atapproximately 4,000 continuous traffic counting locations nationwide, are used to determine the percentchange in traffic for the current month compared to the same month in the previous year. This percentchange is applied to the travel for the same month of the previous year to obtain an estimate of travel forthe current month.

 

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