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Project BanjoTraffic StudyMarch 2, 2022 <br />Page 3 <br />st <br />21 <br />Avenue ‘ a local roadway that varies between a 2-lane undivided facility from Main <br />Street to Commerce Drive and a 3-lane facility with a shared two-way left-turn lanesouth of <br />Commerce Drive.The facility terminates approximately 900 feet south of FairviewStreet. <br />No multimodal facilities are present. The posted speed limit is 30-mph. <br />Commerce Drive‘ a 3-lane local roadway with a shared two-way left-turn lane. No <br />multimodal facilities are present. The posted speed limit is 30-mph. <br />Fairview Street‘ a two-lane undivided local roadway which currently terminates about <br />thst <br />800 feet east of 20Avenue. This roadway is expected to be extended to 21Avenue in <br />2022. No multimodal facilities are present. The posted speed limit is 30-mph. <br />Cedar Street ‘ a two-lane undivided local roadway which primarily serves residential land <br />uses.No multimodal facilities are present. The posted speed limit is 30-mph. <br />thst <br />From a traffic control perspective, intersections along Main Streetat 20Avenue, 21Avenue, and <br />the I-35E West and East Ramps are signalized.All other study intersections are unsignalized with <br />side-street stop control. Existing geometrics, traffic controls, and traffic volumes in the study area are <br />shown inFigure 2. <br />Intersection Capacity <br />Intersection capacity was evaluated using Synchro/SimTrafficSoftware (version 11), which <br />incorporates methods outlined in the Highway Capacity Manual, 6th Edition. The software is used to <br />develop calibrated models that simulate observed traffic operations and identify key metrics such as <br />intersection Level of Service (LOS) and queues. These models incorporate collected traffic, <br />pedestrian, and bicyclist volumes, traffic controls, and driver behavior factors. <br />Level of Service (LOS) quantifies how an intersection is operating. Intersections are graded from <br />LOS A through LOS F, which corresponds to the average delay per vehicle values shown inTable 1. <br />An overall intersection LOS A though LOS D is generally considered acceptable in the Twin Cities. <br />LOS A indicates the best traffic operation, while LOS F indicates an intersection where demand <br />exceeds capacity. <br />Table 1 Level of Service Thresholds <br />Average Delay / Vehicles <br />Level of <br />Stop, Yield, and RoundaboutSignalized <br />Service <br />IntersectionsIntersections <br />A < 10 seconds< 10 seconds <br />B 10 to 15 seconds10 to 20 seconds <br />C 15 to 25 seconds20 to 35 seconds <br />D 25 to 35 seconds35 to 55 seconds <br />E 35 to 50 seconds55 to 80 seconds <br />F > 50 seconds> 80 seconds <br /> <br />