Tags: Railway Line.
The Red Line is a rapid transit line operated by the Massachusetts Bay Transportation Authority (MBTA) running roughly northwest to southeast from Alewife station in Cambridge Massachusetts through downtown Boston (with transfers to the Green Line at Park Street the Orange Line at Downtown Crossing and the Silver Line at South Station) then passing through South Boston. South of JFK/UMass it splits into two branches terminating at Braintree and Ashmont stations.
