Home Archives MBTA info MBTA info Chelsea is served by the MBTA to make transportation easier for our community. We have seven bus routes and one commuter rail spread throughout the city. Click the links below to find a bus/commuter rail schedule. SL3 Bus 110 Bus 111 Bus 111C Bus 112 Bus 114 Bus 116 Bus 117 Commuter Rail Click here for bus fare informationClick here commuter rail fare information