5.1 PCSR 05-24-1994 - Laserfiche WebLink

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r . .J=� Mr. John Weicht -3- May 11, 1994 In order to analyze the traffic implications of the proposed auto mall, an understanding of existing turn movement volumes at the Main St./Carson St. intersection was • needed. To facilitate this understanding, turn movement counts were the p.m. peak time period (4-6 p.m.) in fifteen minute intervals on May performed, 4 during Benshoof`& Associates, Inc. Existingtotal approachby Maier Stewart & Associates, Inc. fothe T.H. 169/Main Steintteesectil n obtained from Accident History at Main St ICarsp cf t E 111 A listing of accidents which have occurred at the Main St./Carson St. intersection was obtained from the Elk River Police Department. This listing showed that over thep ast four and one half years, 15 accidents had been reported at this intersection, for an average of three and one third accidents per year. It was further learned from the Chief of Police that one type of accident had occurred more intersection. This type frequently than others at the of accident involved eastbound vehicles on Main St. that were turning left onto northbound Carson St. hitting vehicles on Carson St. waiting to turn onto Main St. Roadway Alternative Two different roadway alternatives were considered in the traffic analysis. The first involved having the only access to Carson St. at Main St., as is currently the case. The other alternative involved the creation of a right turn in/out access on T.H. 169 at the north end of Carson St., in addition to the Main St. access. TRAFFIC FORECASTS • Trip eneratinn Trip generation rates were established for theproposed development to account for the expected new and pass by trips. Trip generation rates for the auto related uses were based on studies done at similar locations by Benshoof& Associates, Inc., while the trip generation rates for the other retail uses were based on information obtained from representatives of those uses. We are confident that the trip generation rates for the Mr. Movies and the Little Caesar's Pizza uses are conservatively high. Next, it is important to classify trips to and from the development in terms of the following two categories: • New trips - These are trips that either would be new trips solely to and from the development. • Passby trips - These are existing "through" trips on T.H. 169 that in the future would include a stop at the proposed development. Based on our experiences and information published by the Institute of Transportation Engineers, we would estimate that approximately 90 percent of the trips generated by the development would be new, while 10 percent would be classified as passby. To account for multipurpoSe trips, or trips that would make stops at more than one of the businesses in the development, a five percent reduction factor was applied to the overall trip generation.