![]() ![]() 2012: Signalling upgrade starts, projected commissioning in 2016.Upgrading & Renewing of Power Supply System.The re-signalling is part of an overhaul of the entire North South and East West Line network. We will also discuss the policy side of the issue, including the challenges faced during the implementation of the CBTC and leading up to the full commissioning of the CBTC system. This article will attempt to delve deeper into the technical workings of the CBTC system and how certain working aspects of the system have led to the regular service delays faced by commuters. The rollout of the new Communications-based Train Control signalling system, CBTC for short, has been particularly rough, with regular delays and faults across the North South Line (NSL) and East West Line (EWL), and the most severe incident being a train collision on 15 November 2017 that injured 38 people. In the many months since April 2017, signalling system faults have been the consternation of many commuters.
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