Assembly (originally Assembly Square in some planning documents) is a rapid transit station in Somerville, Massachusetts. It serves the MBTA's Orange Line. It is an infill station, located on a section of the Orange Line that has been active since 1975. The station, which opened on September 2, 2014, was the first new station on the MBTA subway system since 1987. Assembly station is meant to provide convenient access to Assembly Square - a major retail and residential development located on the site of a former Ford assembly plant - and the adjacent Assembly Square Marketplace. The Assembly Square project is estimated to generate 45,000 new vehicle trips each day, and the station was intended to reduce the number that use private automobiles by diverting travelers to mass transit. Ridership is projected to reach 5,000 riders per day in 2030; it averaged 1,864 during its first year.