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June 2012 Traffic Volume Trends

Travel Trends (June 2012)

Based on preliminary reports from the State Highway Agencies, travel during June 2012 on all roads and streets in the nation changed by 0.4% (1.1 billion vehicle miles) resulting in estimated travel for the month at 257.6** billion vehicle-miles.

This total includes 87.3 billion vehicle-miles on rural roads and 170.3 billion vehicle-miles on urban roads and streets.

Cumulative Travel changed by 1.1% (15.6 billion vehicle miles).

The larger changes to rural and urban travel are primarily because of the expansion in urban boundaries reflected in the 2000 census. Travel estimates for 2004 and beyond will also reflect this adjustment.

Travel for the current month, the cumulative yearly total, as well as the moving 12-month total on all roads and streets is shown below. Similar totals for each year since 1987 are also included.

Travel in Millions of Vehicle Miles All Roads and Streets
Year May Year to Date Moving 12-Month
1987 167,826 928,892 1,886,319
1988 178,690 981,999 1,977,435
1989 184,094 1,024,710 2,068,297
1990 189,529 1,053,740 2,136,069
1991 193,467 1,055,250 2,149,011
1992 197,232 1,091,660 2,208,624
1993 199,414 1,116,525 2,272,018
1994 207,280 1,141,229 2,321,409
1995 211,370 1,188,287 2,404,645
1996 215,551 1,203,679 2,438,167
1997 222,254 1,245,655 2,524,178
1998 228,733 1,272,811 2,587,529
1999 235,970 1,293,581 2,646,133
2000 242,963 1,348,355 2,734,232
2001 243,498 1,364,517 2,763,088
2002 247,868 1,396,362 2,827,457
2003 252,145 1,403,694 2,862,841
2004 257,383 1,453,148 2,939,676
2005 263,816 1,474,580 2,986,220
2006 263,805 1,488,540 3,003,390
2007 265,475 1,498,616 3,024,447
2008 256,152 1,478,711 3,011,219
2009 258,487 1,459,065 2,956,882
2010 260,121 1,454,331 2,952,028
2011 256,542 1,440,123 2,952,279
2012 257,611 1,455,736 2,946,267

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. Because of the limited sample sizes, caution should be used with theses estimates. The highway Performance Monitoring System provides more accurate information on an anual basis.

** System entries may not add up to the give "All Systems" total due to rounding on pages 2 to 8.

 

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