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C. Build Traffic Volumes <br /> When combined, the site-generated traffic volumes and No-Build scenario traffic volumes result in the <br /> Build scenario traffic volumes, shown on Figures 8 and 9 for the 2026 and 2040 design years,respectively. <br /> D. Intersection Operational Analysis Description <br /> The operating conditions of transportation facilities, such as roadways, traffic signals and stop-controlled <br /> intersections, are evaluated based on the relationship of the theoretical capacity of a facility to the actual <br /> traffic volume on that facility. Various factors affect capacity including travel speed, roadway geometry, <br /> grade,number of travel lanes, and intersection control. The current standards for evaluating capacity and <br /> operating conditions are contained in the 6' Edition of Highway Capacity Manual, published by the <br /> Transportation Research Board. The procedures describe operating conditions in terms of driver delay <br /> represented as a Level of Service (LOS). Operations are given letter designations with "A" representing <br /> the best operating conditions and"F"representing the worst. Generally,level of service"D"represents the <br /> threshold for acceptable overall intersection operating conditions during a peak hour. The Chart below <br /> summarizes the level of service and delay criteria for signalized and unsignalized intersections. <br /> Signalized Intersection Unsignalized Intersection <br /> LOS Designation Avera a Delay/Vehicle (Sec.) Average Delay/Vehicle (Sec.) <br /> A < 10 < 10 <br /> B > 10-20 > 10-15 <br /> C >20-35 > 15-25 <br /> D >35-55 >25-35 <br /> E > 55-80 >35-50 <br /> F > 80 > 50 <br /> A final fundamental component of operational analyses is a study of vehicular queuing, or the line of <br /> vehicles waiting to pass through an intersection. An intersection can operate with an acceptable Level of <br /> Service, but if queues from the intersection extend back to block entrances to turn lanes or accesses to <br /> adjacent land uses, unsafe operating conditions could result. In this report, the Industry Design Standard <br /> 95th percentile queue length is used. The 95th Percentile Queue Length refers to that length of vehicle <br /> queue that has only a five-percent probability of occurring during an analysis hour. <br /> Traffic Impact Study Page 17 Sotarra-Trott Brook <br /> S2 Traffic Solutions August 10,2021 <br />