Initial subway service to Lechmere was a shuttle service to Pleasant Street, which was intended as a temporary terminal until a more suitable western terminal could be found. (A transfer station at on the Commonwealth Avenue line had been proposed in June 1922, but was rejected by the community.) Service ran with three-car trains every three minutes at peak, and two-car trains every four minutes at other times. The forced transfer was unpopular with some riders who formerly had a one-seat ride to downtown Boston.