Red and Orange Line Signal Upgrades
Updated on January 17, 2019
About the Project
We’re upgrading the signal system on the Red and Orange lines. The new, digital signal infrastructure will support new Red Line and Orange Line vehicles being brought into service and allow for more reliable service.
Our system is made up of equipment and cables that run along the track, and communication equipment that sends train location information to our operations teams. Our teams use that information to, for example, make sure trains are evenly spaced out or keep 2 trains out of the same section of track.
We’ll be replacing the equipment’s communication, train detection electronics, and relays, which currently need to be set, reset, and repaired manually—a time-consuming task for our operations and maintenance teams.
Work is being done alongside infrastructure and maintenance equipment upgrades at Cabot Yard and Wellington Yard as part of the Red Line and Orange Line improvement programs.
Improved signals maintenance:
- Reduced maintenance time and cost
- Increased reliability
- Renewed lifespan for entire system
- Communication of early warning diagnostics
|Project||Project Substantial Completion|
|Project||Red Line signal enhancements||Project Substantial Completion||Summer 2019|
|Project||Orange Line signal enhancements||Project Substantial Completion||Winter 2019|
|Project||Red Line signal upgrades||Project Substantial Completion||Winter 2022|
|Project||Orange Line signal upgrades||Project Substantial Completion||Spring 2022|
For all queries and comments related to Red and Orange Line Signal Upgrades, please contact: