There are proposals to upgrade Fairmount Line service. Introduction of DMU Rapid Transit like vehicles, short headways, new stations with Rapid Transit like spacing, and a simplified fare structure. Currently the MBTA is building Phase 1 of the project, which is improving the existing stations: Uphamps Corner, Morton Street, Fairmount, and Readville. The improvements include full length high level platforms, better lighting and signage, and better neighborhood access. Phase 2 includes building new stations at: South Bay, Columbia Road, Four Corners, Tablot Avenue, and Blue Hills Avenue. Phase 3 includes more frequent service and introduction of Rapid Transit like vehicles.
The beauty of the Fairmount line is how easy it will be to introduce Rapid Transit to Dorchester. The line goes through a very densley populated, transit dependant community, it is completely grade seperated, and the rails are in mint condition. It is a gift to the MBTA.
Many ask, why doesn't the MBTA go one step further and upgrade the line to Third Rail Rapid Transit. Well, the Fairmount Branch is the only alternative to the overburdened Southwest Corridor. In fact, some peak commuter rail trains are scheduled to run via the Fairmount Line. The Fairmount Line as an alternative route is too valuable.