Overview: In Massachusetts, the NEC comprises three tracks near Boston, but constricts down to just two tracks near Route 128 Station. This two-track configuration for the remainder of Massachusetts creates a significant capacity bottleneck for Amtrak and MBTA’s Providence Line, which together run 61 trains daily between Boston and Providence. To support existing services and proposed expansions, additional three-track territory would be required through Massachusetts. Two areas of critical need are 12 miles from Sharon to Attleboro and five miles from Readville to Canton Junction. Each section of additional track would significantly expand capacity along the NEC in Massachusetts, enabling Amtrak and MBTA to improve and increase service.