McMahon was selected by the developer, Trinity Financial LLC, to facilitate redevelopment of Ashmont Station, the Massachusetts Bay Transportation Authority’s (MBTA) largest station in the Dorchester area, in conjunction with their associated Transit Oriented Development (TOD). Built in 1927, with no major renovations since then, the station suffered from an outdated configuration and was in desperate need of repairs. Plans for Ashmont Station included a reconfigured concourse, automated fare collection equipment and a new roof. The TOD component of the project was comprised of 28,000 square feet of street-side retail space and 120 mixed-income apartments.
McMahon’s work included analyzing traffic flow, particularly bus circulation and access to both the station and the TOD project. McMahon developed plans for relocating all bus services off-site during construction, and prepared circulation and berthing plans for the redeveloped site. Alternatives were evaluated for safety, potential pedestrian/vehicle conflicts, bus and vehicle circulation, and accessibility between platforms and rubber-tired service. Each plan was presented and ultimately approved by the City of Boston, the MBTA, and the general public. Transit service operated satisfactorily during construction and the permanent plans were implemented, and are in operation today.