South of Mansfield Ma The Station at Attleboro is 4 tracks wide. The Two sidings are the Station Platforms were the MBTA Commuter trains stop. The two inside tracks are for the Fast Amtrak trains who don't have a reason to stop at the Attleboro station. Here a MBTA commuter train leaves the station northbound to Boston. As it leaves the end of siding, a southbound Regional. Later a Northbound Regional flys by. I was expecting an Acela Express. But this is fine.