Transportation Data, GIS & Modeling

 

Annual Traffic Report

The Annual Traffic Report summarizes traffic data maintained by the Washington State Department of Transportation for the State Highway System. The report includes Annual Average Daily Traffic (AADT) figures and truck percentages, when available, for locations where data collection has occurred within the past four years. It also includes traffic volume data from Permanent Traffic Recorder stations at various levels of summarization, as well as Vehicle Miles of Travel information for the State Highway System.

Note that as of 2018 this report is no longer published. Point-specific traffic volume data is now available through a Traffic Geoportal map interface. Vehicle Miles of Travel data is available here: VMT Data.

If you have questions or concerns, please email the Data Steward.

 
Reports By Year (pdf format)


Please note that the 1960 ATR uses the pre-1964 highway numbering scheme, which is inconsistent with the current scheme. The 1965 report entitled The Identification of State Highways provides a cross reference between the old and new highway numbers (available at www.wsdot.wa.gov/Library/History.htm). Also note that prior to the 1987 ATR, traffic volumes were primarily reported in terms of number of axles divided by two, not number of vehicles.

2016 (5.6 mb) 2015 (2.1 mb) 2014 (2.1 mb)
2013 (5.0 mb) 2012 (2.9 mb) 2011 (2.1 mb)
2010 (2.5 mb) 2009 (1.7 mb) 2008 (3.8 mb)
2007 (5.6 mb) 2006 (7.1 mb) 2005 (3.8 mb)
2004 (2.4 mb) 2003 (3.3 mb) 2002 (3.7 mb)
2001 (1.8 mb) 2000 (2.2 mb) 1999 (1.4 mb)
1998 (1.0 mb) 1997 (1.0 mb) 1996 (1.0 mb)
1995 (10.0 mb) 1994 (10.1 mb) 1993 (10.1 mb)
1992 (10.0 mb) 1991 (9.4 mb) 1990 (7.8 mb)
1989 (7.0 mb) 1988 (7.0 mb) 1987 (7.5 mb)
1986 (7.4 mb) 1985 (6.5 mb) 1984 (6.0 mb)
1983 (7.6 mb) 1982 (8.0 mb) 1981 (14.8 mb)
1980 (15.0 mb) 1970 (11.1 mb) 1960 (9.8 mb)

 

Annual Average Daily Traffic Volumes in XLS Format