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[News Article] Track circuit faults unrelated to sleeper replacement works: SMRT
Track circuit faults unrelated to sleeper replacement works: SMRT
From: CNA
Date: 29/01/17

SINGAPORE: Track circuit faults which caused disruptions on the East-West MRT Line in recent weeks are unrelated to the sleeper replacement project on the North-South and East-West Lines which wrapped up in December, SMRT said in a blog post on Sunday (Jan 29).

“The track circuit system is part of the signalling system, and is not part of the sleeper infrastructure that supports the running rails which trains travel on,” SMRT explained. Track circuits send signals to the operations control centre to monitor speed, location and the identity of trains that are passing through.

When a track circuit fails, trains have to slow down over an affected stretch for safety reasons and this could cause congestion during peak hours. Because MRT trains must maintain a safe distance between one another, they could end up starting and stopping momentarily on the track.

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