Vantage Bay PUD Final Development Plan Index Master File

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Vantage Bay PUD Updated Traffic Impact Study TENW September 1, 2017 Page 2 Project Scope The scope of this traffic analysis is consistent with the analysis completed in the previous traffic study dated May 11, 2006 which was based on discussions and correspondence with Kittitas County staff. Consistent with the previous traffic study, the following tasks were completed: · Documented trip generation · Distributed project trips onto Huntzinger Road · Assessed the need for turn pockets on Huntzinger Road along the project frontage · Assessed operations of the proposed access Trip Generation The trip generation estimates for the proposed Vantage Bay PUD development were based on methodology documented in the Institute of Transportation Engineers (ITE) Trip Generation Manual, 9th Edition for land use code (LUC) 210 (Single-Family Detached Housing), LUC 230 (Residential Condominium/Townhouse), LUC 260 (Recreational Homes), and LUC 330 (Resort Hotel). The trip generation estimates for the proposed winery use was based on an activities based approach and information provided by the applicant, which included the number of employees and anticipated arrival and departure times as well as anticipated customer and delivery activities. Project trips were estimated for both a typical weekday and a Saturday. Table 1 Trip Generation Summary Trips Generated Time Period In Out Total Weekday Daily 512 513 1,025 Weekday AM Peak Hour 37 40 77 Weekday PM Peak Hour 48 47 95 Saturday Daily 650 649 1,299 Saturday Peak Hour 114 101 215 As shown in Table 1, the greatest number of peak hour trips is estimated to occur on a Saturday. During the peak hour on a Saturday, the Vantage Bay PUD development is estimated to generate 215 peak hour trips (114 entering, 101 exiting). The detailed trip generation calculations are included in Attachment B. Index #5