The Green Line D Branch
The Green Line D branch is a key component of the Massachusetts Bay Transportation Authority (MBTA)'s Green Line, a light rail system serving the Boston, Massachusetts metropolitan area. Known as the Highland branch or Riverside Line, the D branch runs through several municipalities, including Boston, Brookline, Cambridge, Newton, and Somerville.
Route and Operation
The Green Line D branch stretches approximately 9 miles (14 km) from Riverside Station to Fenway Station. It operates on a grade-separated surface right-of-way, which contributes to its efficiency and reliability compared to other branches operating in mixed traffic.
Key Stations
Some notable stations along the D branch include:
- Riverside Station: Located at the western terminus of the line, providing access to the MBTA's commuter rail services.
- Newton Centre Station: Situated in the heart of Newton Centre, a vibrant neighborhood known for its shopping and dining options.
- Fenway Station: Close to Fenway Park and other major Boston attractions, making it a popular stop for both commuters and tourists.
Historical Context
The D branch was originally a commuter rail line before being converted to a light rail service in 1959. This transformation was part of a broader expansion and modernization effort by the MBTA to improve public transportation within the Greater Boston area.
Integration with the Green Line
The D branch is one of several branches that make up the MBTA's Green Line, each identified by a letter:
- A Branch: Formerly the Watertown Line, now defunct.
- B Branch: The Commonwealth Avenue or Boston College branch.
- C Branch: Known as the Beacon Street or Cleveland Circle line.
- E Branch: The Huntington Avenue branch, which also operates as part of the MBTA Green Line.
Green Line Extension
The Green Line Extension (GLX) project has further expanded the Green Line's reach, enhancing connectivity within the region. The extension project has integrated additional branches into the network, boosting overall accessibility.
Future Developments
The MBTA continues to invest in infrastructure improvements, including the installation of the Green Line Train Protection System (GLTPS). These upgrades aim to modernize the system, ensuring safety and efficiency for all passengers.