AECOM Technology Corporation announced that a joint venture it leads was awarded a $43.3-million contract by the Massachusetts Department of Transportation to proceed with advanced preliminary design services, the first phase of the joint venture's overall contract for the extension of the Massachusetts Bay Transportation Authority's Green Line light rail service in Boston. In addition to advanced preliminary design services, the joint venture will provide final design services and services during construction in future phases of the contract for a number of elements, including seven new stations and 4.5 miles of light rail tracks; the relocation of Lechmere station; the reconstruction of bridges along the corridor; and the development of a new maintenance and transportation facility.