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TRAFFIC IMPACT ANALYSIS - TECHNICAL MEMORANDUM (CONTINUED) <br />Future Baseline 2016 Traffic Volumes <br />The City of Tukwila provided historic traffic volume data on Tukwila International Boulevard north of S 139th <br />Street from the year 2006 through 2011. The annual growth from 2006 has varied year to year as is seen in Table <br />2 below. Additionally, a forecast of the average daily traffic (ADT) for the project horizon year of 2016 was used <br />to help develop an assumed annual growth rate. <br />Table 2. Historic Growth in Traffic Volumes (TIB north of S 139th Street) <br />Data Years of Growth Average Daily Annual Growth <br />Year from 2006 Traffic (ADD from 2006 <br />2006 - 17,100 <br />2007 1 17,300 1.2% <br />2008 2 17,400 0.9% <br />2009 3 16,800 -0.6% <br />2010 4 15,500 -2.4% <br />2011 5 19,100 2.2% <br />2016 (Forecast) 10 18,057* 0.5 %' <br />'Forecast using linear regression <br />After reviewing the above information, a 1 percent annually compounding traffic growth rate was determined to <br />be a reasonable assumption for the traffic growth anticipated on the streets near Tukwila Village. Figure 3 shows <br />the future 2016 baseline traffic volumes during the weekday PM peak hour, which were grown from the volumes <br />summarized in Figure 2. <br />Tukwila Village Development Associates LP 554- 6892 -001 <br />Traffic Impact Analysis 4 November 12, 2012 <br />116 <br />