Egan Drive: Whittier to Main Street
KAI conducted a study for the Alaska Department of Transportation & Public Facilities (ADOT&PF) to evaluate the Egan Drive corridor from a multimodal standpoint, most notably to perform analysis and concept design for several corridor alternatives that eliminated one or more vehicular lanes and provided enhanced pedestrian and bicycle facilities. Egan Drive, an urban arterial, currently enters the downtown core of Juneau as a four-lane facility with narrow sidewalks and no bicycle lanes. Measured vehicular speeds are significantly higher than the posted speed limit of 20 to 30 mph. Peak tourist season pedestrian and bicycle traffic is extremely high along the corridor as the main cruise ship port in Juneau lies just to the east of the study corridor.
KAI analyzed multiple scenarios for the reduction in the number of vehicular lanes on the corridor and evaluated several types of intersection treatments including roundabouts (single-lane, multilane, and mini-), traffic signals, and unsignalized intersections with restricted movements and bike-only movements. KAI developed several unique corridor designs that included combinations of the above mentioned intersection treatments, as well as streetscape treatments for enhancing the pedestrian and bicycle environment and for slowing vehicle speeds. KAI’s implementation plan for the corridor included an evaluation of near-term and long-term improvements, with extra attention given to near-term recommendations that didn’t preclude the ability to construct desired long-term improvements, such as roundabout intersections.