T Time, Part II


In this second post on the T, I’ll be talking about the Green Line. The green line is the oldest, and in my opinion most interesting, of Boston’s subway lines. It has its beginnings in 1897 as a tunnel under Tremont Street, allowing streetcars to bypass downtown congestion. Its four branches are all that remains of Boston’s once comprehensive streetcar network. This original tunnel ran from Boylston to Haymarket, and was accessed via portals on Pleasant Street and the Public Gardens at the southern end, and at Canal Street on the northern end after the extension to Government Center (then Adams and Scollay Squares) and North Station in 1898. 

A diagram of the Green Line tunnels before the construction of Government Center

Originally, it was shared with many different streetcar companies which were consolidated into the Boston Elevated Railway in 1922. This later became the MTA in 1947, and the MBTA in 1964.

“So how come the lettering starts with B?” you ask.

Good question. Unfortunately, the MBTA has not been reserved in mutilating what remains of its streetcars.

Originally, the Green Line did start with A. The A branch went to Watertown, and was mostly a streetcar line, while the rest of the lines are at least partially grade separated. Service on this branch was discontinued in 1969, and the tracks removed in the 1990s as the streets were rebuilt.

A T map showing the A branch to Watertown

Likewise, the E branch originally followed Heath Street to Arborway, where it connected with the Orange Line at Forest Hills. Like the A branch, this segment was mostly street running, and still is to its current end at Heath Street. A lawsuit was filed by the community when the MBTA cancelled plans to restore this service as part of transit mitigations to the Big Dig, but the suit was ultimately thrown out of court and the tracks removed. 


An older map showing suspended Arborway service

Interestingly, a short segment of the original tunnel from Pleasant Street to Boylston was also abandoned. Riders are reminded of this going through the sharp turn just before entering Boylston.

Original plans of the Boylston Station. The current Green Line alignment goes towards the top of the plan

This is the inevitable result when 21st century light rail vehicles meet 19th century tunnels. While many complain about the sounds of grinding metal, I applaud them for even trying.

There are two main types of vehicles that run on the Green Line. The Type 7 and Type 8 streetcars. The Type 7 cars were built by Kinki-Sharyo in two sets, the first set in the mid 1980s, and the second set in the late 1990s. Type 8 cars were built by AnsaldoBreda starting in the late 1990s, and were completely delivered by the mid 2000s with their own set of teething issues. Both of these types replaced the infamous Boeing-Vertol cars, constructed in the mid 1970s and in service in some capacity until the mid 2000s, despite the fact that words cannot describe what mechanical nightmares the Boeings turned out to be. Trains usually consist of one Type 7 and one Type 8 coupled together. This is because the Type 7 cars have high floors and are not compliant with the Americans with Disabilities Act. The Type 8 cars have a low floor section, and seating facing the center of the car throughout. 

A Type 8 train

Recently, the Type 7 cars have been rebuilt by Alstom. These rebuilt cars feature the original green and white paint scheme, as well as black padded seats and automated announcements. Thankfully, they still have the original seat layout, allowing one to comfortably look out the window while riding. The automated announcements are often punctuated by the train operator’s announcements, in many cases it’s “Stand clear stand clear, doors closing (and pahk yah cah in Havahad Yahd)”. Unrebuilt cars often feature either a faded original white and green scheme, or a take on the Type 8 scheme, where white is replaced with grey and the green mixed slightly with blue. 

 A Type 7 train

In the next several years, Type 9 cars will be added to the fleet. This will be in conjunction with the extension north from Lechmere to Union Square and College Avenue. None of the Type 7 or 8 cars will be replaced by Type 9s. There is also cyclical discussion about extending the Green Line to the south or east, either by rebuilding the Arborway branch of the E (despite the defeat of a lawsuit which would mandate this), or the creation of a new branch to Dudley Square that would replace the current Silver Line service. However, neither of these are on any official MBTA plans.

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