05-01-2017 Council Packet - Laserfiche WebLink

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Topographic Conditions: The topographic conditions of the intersections are the physical features in the area, including: • The grade of each approaching roadway • Location and size of adjacent buildings or structures • Angle of the intersection • Geometrics (number of lanes) of the intersection • If a school, park or major pedestrian generator is located in the area Intersection Control Policies: When developing policies for stop sign controlled intersections, the traffic conditions and topographic conditions are used in the analysis procedure. Additional, non-technical factors may also be considered during the analysis procedure. Therefore, engineering judgment is utilized when evaluating the appropriate intersection control. Analysis Procedure: The procedure for evaluating the need and location of stop sign control can be found in the Minnesota Manual on Uniform Traffic Control Devices (MnMUTCD), Section 2B-5 and 2B-7. Based on those warrants, the following two-way and all-way stop sign installation procedures should be followed: Step 1: Request for intersection control evaluation This request can come from either a resident, the City Council, or from staff observation of a particular intersection. If a request is made from a resident, a signed petition of more than 80% of the households within a 300' radius of the intersection, should accompany the request. Step 2: Data collection This step in the procedure involves collecting the data necessary to evaluate the proposed intersection control. The data required for each phase is listed below. • Average Daily Traffic Volume data • Traffic speed by approach • Vehicle classification (number of trucks, etc.) • Pedestrian volumes crossing all approached during peak periods • Intersection topographic information • Detailed crash data • Detailed site visit viewing the intersection operations for the peak hours of a typical day Step 3: Initial evaluation An initial evaluation of the intersection should be completed to determine if a detailed intersection control study should be performed. This evaluation is something that can be applied with minimal data (i.e., ADT traffic volumes, accident history and roadway geometrics). This procedure is as follows: