Knorr-Bremse enters final phase of Boston metro signalling upgrade

KB Signaling, Knorr-Bremse's signalling unit, has been equipping the Red and Orange Lines with AFTC5 track circuits together with transit authority MBTA since 2019; more than 800 circuits are installed while services keep running, and the final phase has begun.

KB Signaling, Knorr-Bremse's signalling unit, has entered the final phase of a programme running since 2019 together with transit authority MBTA, which is equipping the Red and Orange Lines of the Boston metro (26 stations) with AFTC5 track circuits. More than 800 of these circuits are already installed, while services keep running; for KB Signaling the project has a value in the low three-digit million euro range and is due to be completed by the end of 2026. The date is a placeholder: the article gives only the end of 2026; according to Knorr-Bremse, the AFTC5 platform is also part of long-term programmes in Los Angeles and Chicago (LOK Report, 5 May 2026).