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[DRAFT] Intersection Control Evaluation SRF Consulting Group, Inc. County Road E at Snelling Ave N (CR 76) 8 November 30, 2021 Right-turn volumes on the minor street approaches are typically excluded from a warrant analysis when there is an exclusive right-turn lane because these turns can be easily made and would not benefit significantly from the addition of a signal. There are no dedicated right-turn lanes on the Snelling Avenue approaches, so the right-turns were included in the analysis. It should also be noted that the 70 percent traffic volume factor was not used for the warrant analysis because the southbound approach of Snelling Avenue is posted at 45 mph and is has the second highest volume of the four approaches, only behind the westbound approach. Table 6 provides a warrant analysis summary, while the detailed volume-based analysis is shown in the Appendix. Table 6. Signal Warrant Analysis Summary MnMUTCD Signal Warrant Hours Required Opening Year Year 2023 Volumes Forecast Year 2043 Volumes Hours Met Warrant Met? Hours Met Warrant Met? Warrant 1A: Minimum Vehicular Volume 8 9 Yes 12 Yes Warrant 1B: Interruption of Continuous Traffic 8 3 No 3 No Warrant 1C: Combination of Warrants 8 5 No 9 Yes Warrant 2: Four Hour Volume 4 7 Yes 8 Yes Warrant 3B: Peak Hour Volume 1 4 Yes 4 Yes Warrants 4-9 Not Applicable Multiway Stop Application Condition 8 12 Yes 12 Yes The results of the signal warrant/roundabout analysis indicate that Warrant 1A, Warrant 2, Warrant 3B, and the all-way stop volume warrant are expected to be met under Opening Year 2023 volumes. Under Forecast Year 2043 Volumes, Warrant 1C is also anticipated to be warranted in addition to the ones met under Opening Year 2023 volumes. Traffic Operations Analysis The operational analysis of the all-way stop and traffic signal control alternatives was performed using Synchro/SimTraffic software, while the operational analysis of the roundabout control alternative was performed using Rodel software. The operational analysis identified a Level of Service (LOS) which indicates how well an intersection is operating based on the delay per vehicle measure of effectiveness. Delay is calculated based on procedures outlined in the 6th Edition of the Highway Capacity Manual (HCM) for the all-way stop and traffic signal control and roundabout delay methodologies in Rodel. Intersections are given a ranking from LOS A to LOS F. LOS A indicates the best traffic operation and LOS F indicates an intersection where demand exceeds capacity.