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Service Enhancements

Multi-Year, Multi-Project Rail Transformation Programme

LTA and SMRT are committed to provide a safe and reliable transportation system for our 2.8 million passengers daily. Commuters can look forward to better rail reliability, smoother and faster rides, an enhanced system supplying power to the train and a quieter environment with upcoming track renewal works to upgrade and renew the rail network. The commuter travel experience will be greatly improved once our rail renewal projects are completed.

Sleeper Replacement Works along the North-South East-West Lines

To ensure greater reliability and availability of train services, SMRT embarked on a nationwide sleeper replacement programme across the North-South and East-West Lines. From August 2013 to December 2016, 188,000 timber sleepers were replaced with more durable concrete sleepers. The sleeper replacement project completed in December 2016, with the laying of the last concrete sleeper on the west-bound track at Clementi MRT Station on the East-West Line.

A new signalling system for the North-South East-West Lines


We are replacing the signalling system on the North-South and East-West Lines which helps identify train location and control train movement on the network. The new signalling system, one of the most advanced in the world, will enhance the network’s resilience and robustness, and reduce the occurrence of signal-related faults. It will also improve the commuter experience as train services will be more punctual and prepare the network for the introduction of more trains, so that commuter waiting time can be reduced in future. The project covers more than 100km of track and involves installation of the equipment and extensive testing and commissioning of the system at all tracks, stations, trains, depots as well as the Operations Control Centre.

Power Rail Replacement of the North-South East-West Lines

Our tracks are powered by a special rail known as the power rail or "third rail". It runs parallel to the train tracks and provides electricity through the collector shoes below the trains. The ageing third rail system is being replaced to reduce power-related faults caused by interfacing of the third rail and the collector shoes. Power rail replacement along the NSEWL was completed in August 2017.

Factsheet on the NSEWL power rail replacement project.

Noise Barrier Installation along Elevated Viaducts of the North-South East-West Lines

To minimise railway noise near residential areas, LTA had announced that some 20km of noise barriers will be installed along elevated railway tracks where noise levels exceed NEA's current noise criterion of 67 decibels (dBA) averaged over an hour. The railway noise barrier programme is targeted to be completed by 2019.

The noise barriers are expected to reduce railway noise levels by 5 to 10 decibels so residents living near elevated MRT tracks can look forward to an improved living environment.

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