09-12-2018 Council Packet - Laserfiche WebLink

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Ms. Jessica Jagoe, Associate Planner September 4, 2018 Page 20 These trips were added to the existing traffic volumes that were counted in August by Biko Associates to represent the forecast 2020 condition with the Caribou Coffee store in place.1 After the trips were added they were distributed according to the trip distribution percentages outlined in the Alliant Engineering traffic study and then assigned to the street system’s intersections. Results of the intersection capacity analysis for this development scenario are presented in Table 6. Table 6 Forecast Year 2020 Intersection Capacity Analysis With Traffic From Caribou Coffee Added Intersection Year AM Peak Hour PM Peak Hour LOS* Delay** (seconds) LOS* Delay** (seconds) I-35E Southbound Ramps/ Little Canada Road/ Country Drive 2020 D / F 40.6 / 147.3 D / F 39.1 / 87.6 * Overall Intersection LOS / Worst Approach LOS ** Overall Intersection Delay / Worst Approach Delay Source: Biko Associates, Inc. and Alliant Engineering, Inc. Forecast Year 2020 Traffic Operations with Caribou Coffee Store and Proposed AFSA School Site in Place Trip generation for the AFSA school site was determined based on the school’s protocols for arrivals and departures for faculty and staff, school buses, and parents who will drive to drop- off students in the morning and pick them up in the afternoon. Table 7 presents the AFSA school site trip generation for daily traffic and the AM and PM peak hours. 1 According to the Alliant Engineering traffic study, it was not necessary to apply a growth rate to the 2018 observed traffic volumes to forecast 2020, because “historical annual average daily traffic (AADT) volumes provided by the Minnesota Department of Transportation (MnDOT) via its Traffic Forecasting & Analysis website were reviewed to determine traffic growth trends within the study area. The historical data indicated a long-term declining trend in Little Canada Road traffic volumes over a 20-year period, and rather than assume a continuing decline in background traffic volumes for year 2020 conditions, existing year 2018 traffic volumes were maintained to provide a conservative analysis of future conditions.”