Green Line Transformation Program
As part of the Capital Transformation Program, the Green Line Transformation (GLT) is upgrading service on the T’s most popular light rail line.
The GLT program will improve reliability and quality of service for riders and communities served by the Green Line. Achieving this requires major upgrades to tracks, signals, stations, facilities and vehicles.
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.
GLT in 2023
Take a look at the work we've completed recently, and learn more about what's coming up.
All GLT Projects
Recent Updates
Be Part of the Green Line Transformation
We'd like to hear what you think would make the Green Line more comfortable, accessible, enjoyable, and easy to use.
Tell us what you thinkRelated Projects
Green Line Extension (GLX)
The Green Line Extension (GLX) will extend the northern end of the Green Line from Lechmere to Union Square in Somerville and College Avenue in Medford.
GLT Levels of Transformation
The Green Line Transformation portfolio of projects is aligned by multiple Levels of Transformation, including:
GLT Program Updates
Learn more about our GLT team members and what we've been working on each week.
Public Meetings and Presentations
Learn more about how we’re engaging with the public and the MBTA Board of Directors as this program progresses.
Past Events
Contact Information
For all queries and comments related to Green Line Transformation, please contact GLT@mbta.com.
To report construction issues or noise complaints, please call the project hotline: 617-222-4100.
For More Information
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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.
Recent Updates
Related Projects
Green Line Extension (GLX)
The Green Line Extension (GLX) will extend the northern end of the Green Line from Lechmere to Union Square in Somerville and College Avenue in Medford.