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Green Line Track Upgrades (2022)

six crew members in high vis and hard hats working on track on the b branch on a sunny day. many lines of track are in the foreground

In 2022, we accelerated track work on all four Green Line branches. From June through October, we completed over 14,000 feet of track upgrades on the B, C, D, and E branches alongside work on the Green Line Train Protection System (GLTPS). Doing this work simultaneously reduced the need for future Green Line closures and allowed for the accelerated completion of both GLTPS and track renewal.

Building a Better T

As part of our $9.6 billion, 5-year capital investment plan, we're renovating stations, modernizing fare collection systems, upgrading services for our buses, subways, and ferries, and improving the accessibility of the entire system.

Learn more

Why We Did This Work

Many of the Green Line tracks were over 30 years old and had reached the end of their service life. Replacing this track improved safety and reliability, and provided smoother trips for riders.

Rider Benefits

  • Safety: New tracks, ties, and ballast reduces the risk of high-impact events such as derailments
  • Reliability: Fewer unplanned stops result in improved service

Work Schedule and Locations

Four full access closures were scheduled in 2022 to accelerate the installation of train protection equipment and track replacement. Before each closure, additional prep work took place on the work sites.

What to Expect if You Live in the Neighborhood

Traffic, parking, and pedestrian impacts

During prep work and construction on each branch, lane closures were required near work zones on the following streets to accommodate construction equipment and materials:

  • B Branch: Linden St and Commonwealth Ave
  • C Branch: Beacon St and Carlton St
  • D Branch: Riverside Yard 
  • E Branch: Huntington Ave, Longwood Ave, Forsyth Way, and South Huntington Ave around the Heath St loop

Noise impacts

The Green Line track work included replacing rail and repaving intersections. The loudest work occurred when crews cut rails with a saw and tamped the track to the proper elevation.

Recent Updates

View all project updates

Related Projects

four photos: two construction workers tamping down tracks, a person in a GLT hard hat directing a person in a wheelchair, a new green line train, and a green line trolley car full of riders heading to Park Street. There's a GLT logo banner at the bottom going across all four photos

This project is one of many we're working on to ensure twice as many passengers have access to a safer, more comfortable, and more reliable Green Line by 2030.

Learn more about the Green Line Transformation

Building a Better T

As part of our $9.6 billion, 5-year capital investment plan, we're renovating stations, modernizing fare collection systems, upgrading services for our buses, subways, and ferries, and improving the accessibility of the entire system.

Learn more

Recent Updates

View all project updates

Related Projects

four photos: two construction workers tamping down tracks, a person in a GLT hard hat directing a person in a wheelchair, a new green line train, and a green line trolley car full of riders heading to Park Street. There's a GLT logo banner at the bottom going across all four photos

This project is one of many we're working on to ensure twice as many passengers have access to a safer, more comfortable, and more reliable Green Line by 2030.

Learn more about the Green Line Transformation