Agenda - Public Works Committee - 04/18/2017

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Name: Future Business Park Traffic Memorandum Date: January 27, 2017 Page: 5 Mitigation includes the lanes and traffic control indicated in the recommendations but also includes a third southbound lane along Armstrong Blvd from Bunker Lake Blvd to the Highway 10 North Ramp terminal Additional review of the bridge design indicates that a third lane would not be feasible without substantial revisions to the bridge structure over the railroad. Based on this, two eastbound through lanes are recommended at the intersection of Armstrong Blvd and Bunker Lake Blvd to provide an alternative route if needed. The analysis below also considers an eastbound free right into the third lane. This is recommended to be a dual right turn when or if needed based on traffic redistribution in the area. The resulting queues are shown below for each movement at the intersection of Armstrong Blvd and Bunker Lake Blvd. Dual eastbound right turn lanes would be anticipated to have similar average queues and shorter max queues. The max queues are anticipated to be less if there is traffic redistribution based on congestion. Table 3: Design Year (2040) Armstrong Blvd & Bunker Lake with Proposed Lanes Max Approach Queue Max Traffic Control Scenario Peak Hour Delay-LOS** Average Queue (ft) Queue (ft) **** CSAH 83 (Armstrong Blvd) & CSAH 116 (Bunker Lake Blvd) AM 41 D 64 122 EBL PM 37 D 106 191 AM 3 A EBR PM 47 D 390 916 WBL AM 45 D 134 215 PM 131 � 401 915 NBL AM 84 305 412 PM 52 D 207 307 SBL AM 31 C 95 145 PM 46 D 81 128 *Delay in seconds per vehicle **Maximum delay and LOS on any approach and/or movement ***Limiting Movement is the highest delay movement. ****Max Queue refers to the 95% Queue (Passenger car stored length = 25 ft, Heavy vehicle stored length = 45 ft) C. Special Considerations 1. The trips from specific developments to Puma and Bunker Lake Blvd have not been analyzed. Trips to and from specific developments should be assigned to appropriate roadways based on the development roadway design. This is especially important for trip assignment at the intersection of Bunker Lake Blvd and Puma St. 2. Mitigation for intersections outside of the area due to development in the area have not been completed. Bruton & Menk is an equal opportunity employer.