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<br /> <br /> <br />Chapter 5 <br />Site Access and Circulation <br /> <br />This chapter presents a summary of how vehicles would access and circulate the Project Site. <br /> <br /> <br />VEHICULAR ACCESS <br /> <br />Primary access to the Project would be via one full-access driveway on 17th Street and an <br />escape lane onto the alleyway, adjacent to the northern boundary of the Project Site. The <br />purpose of the escape lane is to provide customers with an exit lane should they enter the car <br />wash and then change their minds prior to entering the car wash tunnel. <br /> <br />To accommodate patrons of the Project, the center eastbound left-turn pocket into the driveway along 17th <br />street was assessed for adequacy. In addition, as mentioned in Chapter 3, Mabury Street & 17th Street is <br />proposed to include exclusive eastbound and westbound left-turn lanes at the intersection. Thus, a queue <br />analysis was performed to assess the westbound left-turn traffic at the proposed signalized intersection <br />that would prohibit eastbound left turns into the Project Site. The queue length was estimated using <br />Vistro, which reports the 95th percentile queue length, in feet, for each approach lane at the <br />intersection. The queue length reports are provided in Appendix D. <br /> <br />Under Future Conditions, the average westbound left-turn queue lengths were calculated at <br />approximately 10 feet over the morning peak hour and less than 20 feet over the afternoon peak <br />hour, without and with the addition of Project traffic. Thus, a left-turn storage length of one car <br />length would be adequate to meet the 95th percentile queue. A 50-foot left-turn storage length at <br />the intersection would more than accommodate the westbound left-turn queue at Mabury Street. <br />In addition, a two-way left-turn lane east of the left-turn storage length would permit eastbound <br />and southbound left turns into and out of the Project driveway, respectively. A conceptual <br />drawing of the striping plan along 17th Street is provided in Appendix E. Actual left-turn pocket <br />length will be determined and designed as part of the traffic signal installation. <br />331-94