Overview: Southampton Yard is the primary storage location for Boston South Station, providing maintenance and inspection for 16 Amtrak trains per day as well as storage for several MBTA trains. Southampton Yard includes a service shop for Acela trains, and service and inspection facilities for conventional (non-high-speed) trains. The current yard is at capacity and will be unable to accommodate future increases in service. To address the existing constraints at Southampton, plans under development by Amtrak would increase the yard’s capacity for the storage and servicing of trains. These investments would enable Amtrak and MBTA to expand service. This planning complements the South Station Expansion Project in examining solutions to increase storage capacity for MBTA at Boston South Station.