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<br />Transportation Engineering NorthWest Memorandum <br /> <br />Transportation Engineering/Operations ♦ Impact Studies ♦ Design Services ♦ Transportation Planning/Forecasting <br /> <br />816 6th Street South ♦ Kirkland, WA. 98033 ♦ Office (206) 361-7333 ♦ Fax (425) 889-TENW (8369) <br />DATE: May 11, 2006 <br />TO: Ryan Roberts <br /> Kittitas County <br />FROM: Curtis Chin P.E <br />Transportation Engineering NorthWest <br />RE: Vantage Point – Kittitas County, Washington <br />Limited Scope Traffic Study <br />TENW Project No. 4056 <br />This memorandum documents the traffic impacts associated with the proposed Vantage <br />Point development. As we understand, the proposed Vantage Point development is <br />located on the east side of Huntzinger Road within one mile south of I-90 in Kittitas <br />County, Washington. <br />The scope of the traffic analysis included in this memorandum was based on <br />discussions and correspondence with Kittitas County staff. Based on these discussions, <br />the following tasks were completed: <br />• Documented trip generation <br />• Distributed project trips onto Huntzinger Road <br />• Assessed the need for turn pockets on Huntzinger Road along the project <br />frontage <br />• Assessed operations of the proposed access <br />Project Description <br />For our analysis, the Vantage Point development is proposed to include 300 lots with 75 <br />percent of the lots to be used by recreational users and the remaining 25 percent of the <br />lots to be used by permanent residents. The percentage of recreational users and <br />permanent residents should be considered conservative since data provided by the <br />developer states similar developments (i.e. Sunland Estates) include 90 percent <br />recreational users and 10 percent permanent residents. Vehicular access to/from the <br />site is proposed via two new access points on Huntzinger Road. <br />Project Trip Generation <br />The trip generation estimate for the proposed development, as summarized in table 1, is <br />based on methodology documented in the Institute of Transportation Engineers (ITE) <br />Trip Generation Manual, 7th edition. Project trips were estimated for both a typical <br />weekday and Saturday. <br />Index #5