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<br /> <br /> <br />COUNTY ROAD E & OLD SNELLING AVENUE ICE PAGE 12 <br />WSB PROJECT NO. 011498-000 <br />CITY OF ARDEN HILLS <br />urban intersections. Intersection capacity is also defined in terms of queue lengths of <br />stopped vehicles. A 100-foot queue is approximately equal to four cars. <br /> <br />Figure 4 – Level of Service Guidelines <br /> <br />Synchro / SimTraffic, and RODEL software was used to simulate existing and future traffic <br />operations at the intersection of County Road E and Old Snelling Avenue. <br />Synchro is a macroscopic software application used for optimizing traffic signal timing and <br />performing capacity analysis of roadway networks consisting of stop, yield, and signalized <br />traffic control conditions. The underlying equations are based on Highway Capacity <br />Manual procedures. SimTraffic is a microscopic software application that performs <br />simulation and animation of vehicular traffic based on Synchro inputs. SimTraffic follows <br />individual cars and uses a wide variety of variables (including some random variables) to <br />simulate real-world driver behavior. <br />Traffic operations at the intersection of County Road E and Old Snelling Avenue were <br />simulated using existing (2018) and 2038 traffic volumes for the existing traffic control <br />and lane geometry (no build condition) and for each proposed traffic control and lane <br />geometry (build conditions). <br />80 <br />55 <br />35 <br />20 <br />10 <br />LOS A <br />LOS B <br />LOS C <br />LOS D <br />LOS E <br />LOS F <br />Not CongestedCongested50 <br />35 <br />25 <br />10 <br />LOS A <br />LOS B <br />LOS C <br />LOS D <br />LOS E <br />LOS F <br />Not CongestedCongested15 <br />Signalized Intersection Un-signalized IntersectionControl Delay per Vehicle (sec.)Control Delay per Vehicle (sec.)SOURCE: Level of Service thresholds from the Highway Capacity Manual. <br />K:\Traffic\Level of Service (LOS)\LOS Delay Graphic.ppt