the station has an unusual configuration, similar to lincoln. there are 2 side platforms, separated by moody street: the eastern platform is used for inbound passengers, and the western platform is used for outbound passengers. most of the station is located on a short single-track section; after double-tracking was completed from south acton to willows in 2014, this became the only single-track section of the fitchburg line. accessible mini-high platforms were added in 2007.