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Red Line Transformation Program

A photo of two red line construction workers, a red line train, and a crew member next to the red line signal wire stacks, with an RLT logo banner at the bottom going across all three

As part of our $8 billion, 5-year capital investment program that began July 1, 2018, we're rebuilding the Red Line.

The Red Line Transformation Program will result in faster, more comfortable trips on the Red Line, as well as less crowding on platforms and in stations.

It will also support the all-new, expanded Red Line fleet of 252 modern, spacious vehicles, ensuring that an additional 65,000 riders per day can take the Red Line.

Why We're Doing This Work

The MBTA procured new Red and Orange Line vehicles in 2015. To accommodate these new vehicles, we also began a $1.2 billion Red/Orange Line Transformation Program to upgrade yards, maintenance facilities, test tracks, signals, and power systems.

Building a Better T

As part of our $8 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

2021 Year in Review

Images of a green line train, workers on orange line tracks, and the red line testing facility with GLT, OLT, and RLT overlayed

We’re looking back at the milestones the Green Line, Orange Line, and Red Line Transformation teams reached in 2021, including four completed projects and one nearing completion.

Read the 2021 summary 

Program Updates

Learn more about what we've been working on each week.


Red Line Signal Upgrades

The train detection electronics and relays inside the signal bungalow at Forest Hills Station will be replaced.

The analog signal system on the Red Line will be fully replaced with new, digital infrastructure.

Contract awarded: November 2018
Projected completion: Summer 2023
Budget: $217 million (total value for Red Line and Orange Line signal upgrades)
Status: Design and manufacturing ongoing. Installation and testing started between Alewife and Harvard.


New Red Line Vehicles

The Red Line fleet will be entirely replaced with modern, more efficient, more spacious vehicles by 2024.

 Contract awarded: 2014
Projected completion: 2024
Budget: $1 billion (total value for Red Line and Orange Line new vehicles)
Status: One new train added to the fleet; more in production

Red Line Test Track

The Red Line test track and vehicle commissioning facility were formally completed in December 2021. These improvements provide a dedicated area with a connection to Cabot Yard to commission the future Red Line fleet.

Contract awarded: November 2017
Budget: $22 million
Status: Completed December 2021


Cabot Yard and Maintenance Facility

Cabot Maintenance Facility: Planned improvements, including a maintenance platform, car wash, paint booth, wheel truing machine, and cranes. Rendering by designer on record.

Cabot Yard, the facility in South Boston where we store and care for Red Line vehicles each day, will be fully upgraded for safer, more efficient maintenance.

Contract awarded: August 2018
 Projected completion: Summer 2023
Budget: $214 million
Status: 30% complete


Codman Yard Expansion and Improvements

An aerial view of Codman Yard, where Red Line vehicles are stored each night

We’re upgrading the Codman Yard facility near Ashmont Station, where we store and maintain Red Line vehicles each day, to help accommodate the new and expanded Red Line Fleet and to bring it into a State of Good Repair for improved safety and reduced maintenance costs.

  • Design contract awarded: May 2020
  • Anticipated construction start: Fall 2022
  • Projected completion: Spring 2025
  • Budget: TBD – Design/Scope Development in Process
  • Status: 100% design phase

Alewife Crossover Improvements

We’re reconstructing the track crossing between Alewife and Davis stations on the Red Line to allow for increased operating speed. This will improve reliability and support our goal of three-minute headways.

  • Design contract awarded: July 2019
  • Anticipated construction start: Spring 2022
  • Projected completion: Fall 2022
  • Budget: $12M
  • Status: Long lead material procurement and inspection underway

Photo Gallery

Recent Updates

View all project updates

Contact Information

For all queries and comments related to Red Line Transformation Program, please contact RLT@mbta.com.

Related Projects

Building a Better T

As part of our $8 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

2021 Year in Review

Images of a green line train, workers on orange line tracks, and the red line testing facility with GLT, OLT, and RLT overlayed

We’re looking back at the milestones the Green Line, Orange Line, and Red Line Transformation teams reached in 2021, including four completed projects and one nearing completion.

Read the 2021 summary 

Recent Updates

View all project updates