Tests on new MRT backup train control system completed; findings to be evaluated
This is aligned with recommendations by the rail reliability taskforce to explore backup systems.
Authorities and rail operator SMRT are assessing a new backup MRT signaling system that will allow trains to continue operating if onboard signaling equipment fails, following tests in July. The system, known as the smart automatic train control system, aims to provide an "additional layer of resilience" for train operations, SMRT stated on August 25.
"In the rare event of the train-borne signalling system coming to a complete failure, train movement may not be possible, potentially leading to significant service disruption," it added.
The trial is part of recommendations from a task force in February to explore more backup or bypass solutions to maintain or restore rail operations during disruptions. SMRT also plans to prioritize the renewal of trains, signalling and power systems, and comprehensive standardised condition monitoring across the rail network.
The backup system tested is not meant to replace the existing communications-based train control signalling system, which is the primary train control system for safe and efficient train operations. SMRT works with the Land Transport Authority and industry partners to evaluate technologies that can enhance rail reliability, resilience, and operational safety.
Tests were conducted in stages from April to July to assess the system's performance and suitability under controlled operating conditions. SMRT and LTA are evaluating the test results, and future plans to roll out the system will depend on the evaluation outcome and approval processes. The smart automatic train control system, developed by Chinese firm CASCO, costs a proof of concept that is jointly assessed by LTA and SMRT.
CASCO's Facebook post on July 13 highlighted the system's core capabilities, including autonomous positioning, perception, and safety protection. It enables trains to accurately detect the distance to preceding trains and assists drivers by providing intelligent recognition of red signal aspects. These capabilities offer additional situational awareness and help maintain operational safeguards when onboard signaling fails.
The system was tested in Bishan depot, which features a dedicated test track with signaling infrastructure, allowing for a controlled environment for new technology testing without impacting passenger service.
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