MTR Tsuen Wan Line new signaling system starts March 15

The MTR announced on Tuesday that it will switch the Tsuen Wan Line to a new signaling system on March 15, replacing the 1996 system after extensive testing.

To ensure a smooth transition, the MTR completed large-scale simulations on its integrated testing platform covering various scenarios.

Over the past 18 months since mid-2024, extensive on-track tests took place during non-service hours, including simulated peak daytime operations. Every train on the line has run at least 200 km under the new system.

The old signaling system will temporarily remain as a backup during the initial period for contingency and risk management.

The MTR expects minor non-safety issues in early operations, such as slight door-platform screen door misalignment or automatic speed adjustments in some sections. Adjustments will continue to improve performance, with close monitoring in place.

The corporation plans to replace signaling on one urban line per year.

The Kwun Tong Line and Tseung Kwan O Line works are progressing on schedule. Island Line preliminary tests began late last year during non-service hours and will expand this year with more trains and wider coverage.

The full urban line signaling replacement project is targeted for completion by 2029.