Teban54
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Welcome to the world of Green Line Reconfiguration. This is a popular line of proposals on this forum that aims to fundamentally transform MBTA's LRT network to its fullest potential, beyond what we know as Green Line today. Ideally, the revamped LRT system would include all of: legacy streetcars (B and C branches), a more modern LRT system similar to the D branch and GLX, and parts of the Urban Ring.I am riding the D line to my office now, with my commute from Eastie to Newton being severed by the Sumner closure, and boy am I impressed by the speed of the D branch. I think I fully see how much inspiration to build a GLX there was from the D branch being a functioning light rail in Boston. Easy to construct and easy to ride too!
Thinking about how nice non-street-running green line branches are, what could be the next extension to be built in the GL light rail network?
The quickest summary is the following two posts, which largely reflect what "modern" takes on Green Line Reconfiguration have converged to:
- @Riverside 's map (earlier versions and development can be seen starting from here)
- @The EGE 's map
Downtown:
- A Huntington-Seaport subway via Mission Park, LMA, Back Bay, Marginal Rd and South Station
- Reactivation of the southern portion of Tremont St subway, from the outer tracks of Boylston station, through the old Pleasant St incline, to Nubian
- An interchange at Bay Village to connect the two trunk lines (e.g. allowing Huntington-Park)
- The three points above form the backbone of most modern GLR proposals.
- Short-turning (most) Boylston St subway services (B, C, possibly A) at Park St inner loop, in order to not interfere with Tremont St subway and allow full capacity
- D-E connector between Mission Park and Brookline Village, allowing the D to be rerouted via Huntington subway (thus full grade separation from Brookline Village to Symphony)
- Some proposals have a connector via LMA
- Branch to Needham Junction or Hersey, together with OL extension to West Roxbury
- Branch to Harvard via West Station
- Branch to Watertown or Oak Square
- E branch extension to Hyde Park or Arborway
- Branch to Nubian
- Branch from Park St to Seaport via Bay Village
- Some proposals do not have this, and instead send all Seaport trains west to Huntington
- D branch extension to Porter, and possibly beyond (Watertown or Waltham)
- E branch extension to Route 16, and possibly beyond
- Branch to Grand Junction
- Some proposals do not have this as part of the Green Line system, but instead an Urban Ring route that doesn't interfere with Lechmere or Government Center
- Branch to Chelsea and Airport BL station via Sullivan
- Some proposals do not connect this to Lechmere, but instead only to Grand Junction
- Connection west of Grand Junction to West Station and somewhere to the southeast (BU, LMA etc)
- May or may not interfere with Commonwealth Ave and part of the current D branch's Fenway and Longwood stations
- Connection between Grand Junction and Chelsea branches, typically via an interchange at Brickbottom
- Some way to implement southern half of Urban Ring, either as LRT or BRT
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