The Massachusetts Bay Transportation Authority (MBTA) also commissioned DHK was to undertake modernization of the subway station in conjunction with the restoration of the historic South Station train terminal. The renovation work extended the subway platform areas to accommodate longer trains, thereby improving service, and to improve the station environment for passengers. This second goal was achieved by redesigning existing entrance kiosks and adding a new kiosk on the more populated side of the intersection; adding a new mezzanine level to the station interior; incorporating new elevators for handicapped passengers; redesign of the finishes and systems in the lobby and platform areas to increase passenger comfort and safety.