← Boston MBTA Live Map
Red Line Live Map
Track Red Line trains in real time as they run between Alewife in Cambridge and the Ashmont and Braintree branches in Dorchester and Quincy, through Harvard, Park Street, and Downtown Crossing.
Open the live Red Line map →About the Red Line
- Connects Cambridge, downtown Boston, Dorchester, and Quincy.
- Splits into the Ashmont and Braintree branches south of JFK/UMass.
- Transfer to the Mattapan Trolley at Ashmont.
How it works
This live map shows real-time Red Line vehicle positions, route shapes, stations, and arrival predictions, sourced from the MBTA's official V3 API and updated continuously. Open the map to watch trains move, tap any vehicle or station for live arrivals, and share a direct link to what you're viewing.