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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Traffic Volume Trends / Travel Trends – April 2015 Traffic Volume Trends – Travel Monitoring and Traffic Volume

April 2015 Traffic Volume Trends

Travel Trends (April 2015)

Based on preliminary reports from the State Highway Agencies, travel during March 2015 on all roads and streets in the nation changed by 3.9% (10.2 billion vehicle miles) resulting in estimated travel for the month at 267.9** billion vehicle-miles.

This total includes 84.1 billion vehicle-miles on rural roads and 183.8 billion vehicle-miles on urban roads and streets.

Cumulative Travel changed by 3.9% (36.9 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 1990 are also included.

Travel in Millions of Vehicle Miles All Roads and Streets
Year April Year to
Date
Moving
12-Month
1990 179,033 674,963 2,126,210
1991 179,538 669,854 2,142,392
1992 186,069 697,702 2,200,062
1993 188,737 711,130 2,260,579
1994 195,407 727,355 2,312,930
1995 198,213 764,330 2,394,562
1996 205,253 769,452 2,427,897
1997 211,290 797,319 2,510,068
1998 217,921 816,180 2,579,234
1999 220,996 826,825 2,636,008
2000 227,698 862,891 2,715,525
2001 232,513 875,662 2,759,697
2002 237,226 896,748 2,816,697
2003 239,415 898,305 2,857,067
2004 250,968 938,530 2,930,447
2005 250,860 948,085 2,974,344
2006 250,665 961,342 3,002,687
2007 252,734 965,494 3,018,523
2008 252,699 960,669 3,026,299
2009 251,481 941,785 2,957,644
2010 254,014 937,017 2,951,995
2011 249,309 935,990 2,965,935
2012 249,567 948,900 2,958,725
2013 252,116 947,525 2,968,058
2014 257,717 950,903 2,991,402
2015 267,893 987,787 3,074,742

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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Page last modified on June 19, 2015.
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000