Washington Avenue Reconstruction


  • LocationMinneapolis, MN
  • ClientMinneapolis Downtown CBD, Hennepin County, City of Minneapolis
  • Category Transportation


Washington Ave. is a major 6-lane roadway with 30,000 ADT that travels through the north side of the Minneapolis Downtown CBD. Hennepin Co. and the City are working towards providing bicycle facilities along this corridor of closely spaced traffic signals. To support the design decisions and to facilitate Stakeholders discussions, Alliant completed a detailed traffic operations analysis using the VISUM/VISSIM model for the north half of the CBD. The traffic operation analysis evaluated 10 design concepts with sub-alternatives, consisting of various lane configurations, and the required signal phasing and signal timing improvements needed. A detailed sensitivity analysis for several pedestrian/bicycle volume cases and motor vehicle diversion scenarios were also completed to identify exactly where right turn lanes were or were not needed and the required minimum length of turn lanes. The report compared delay, travel time, emission, fuel consumption and transportation user cost economics for each alternative.

The preferred alternative, which removes a motor vehicle travel lane in each direction, will provide a behind the curb one way protected bikeway on each side of Washington Avenue. Alliant assisted Hennepin County with final design construction documents, including the preparation of traffic signal revision, signal interconnect construction plans, traffic control and staging plans and specifications for the seven intersection corridor of Washington Avenue. The traffic signal designs include the replacement of traffic signal cabinets and controllers to provide flashing yellow arrow indications and the addition of a leading interval bicycle signal indications for the protected bikeway.


  • Traffic Operations Analysis
  • Traffic Control
  • Staging Plans and Specifications
  • Traffic Signal Revision
  • Traffic Signal Design


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