Laserfiche WebLink
Walmart (Store #3404-05) <br />Traffic Impact Analysis <br />Roseville, Minnesota <br />It was assumed that for the future scenarios an intersection with unsatisfactory operations <br />should be addressed through signal timing modifications, or if that was not possible, <br />through implementation of an intersection or roadway improvement. <br />In order to determine the impacts of the project on the transportation network, a traffic <br />operations analysis was performed on the internal and surrounding roadway network. The <br />analysis process included determining level of service and queue lengths at each of the <br />study intersections for existing, no build, and build conditions. Supporting SimTraffic <br />Appendix B <br />reports are included in. For each scenario, five one-hour simulations were <br />conducted in SimTraffic. <br />In each of the following sections, a description of potentially unsatisfactory operational <br />characteristics is summarized for each scenario modeled. For each scenario, a table is <br />included where the intersection level of service and delay is summarized. The SimTraffic <br />reports were reviewed to identify individual movements that experience unsatisfactory <br />level of service and delay or queues that are anticipated to block the adjacent lane. Only <br />in instances where an individual movement experiences an unsatisfactory measure of <br />effectiveness will the movement information be summarized. <br />2011 Existing Operations <br />Tables 34 <br /> and provide 2011 LOS and queuing results, respectively. All intersections <br />operate at LOS C or better during the p.m. peak period. A total of three movements <br />operate at LOS E or F: <br />Cleveland Avenue N (CSAH 46) & Twin Lakes Parkway eastbound through: <br />average delay 99 seconds of per vehicle, LOS F. There are only 3 vehicles <br />making this movement in the peak hour. This is a result of the long cycle length <br />(120 seconds) and random arrivals, and does not represent an operational <br />deficiency. <br />Cleveland Avenue N (CSAH 46) & County Road C W (CSAH 23) southbound <br />left: average delay of 75 seconds per vehicle, LOS E. This is a very heavy <br />movement in the p.m. peak hour, with 325 vehicles making this left turn, many of <br />th <br />which come from the I-35W northbound exit ramp 550 feet to the north. The 95 <br />percentile queue is 364 feet, compared to a turn lane length of 200 feet. The <br />southbound left turn queue often spills out of the turn lane and blocks traffic in <br />the adjacent through lane. <br />County Road C W (CSAH 23) & Prior Avenue southbound left: average delay of <br />56 seconds per vehicle, LOS E. This movement has only 3 vehicles making this <br />turn and the delay does not represent an operational deficiency. <br />23 <br />July 2011 <br /> <br />