Track circuit faults cause delays on NSL, EWL on Tuesday morning
18 Apr 2017|1,578 views
Commuters on both the North-South (NSL) and East-West (EWL) Lines were affected by delays throughout Tuesday (18th April) morning. SMRT, which operates both lines, told The Straits Times that the delays were caused by track circuit faults. Such faults, which are not the same as the more common track faults, arise because of ageing track circuits.
In a statement on Tuesday afternoon, SMRT's Vice President for Corporate Information and Communications Patrick Nathan said the faults resulted in trains having to travel at a slower speed for commuter safety.
"In the new signalling system that is currently being tested, the ageing track circuits will be replaced with a more advanced system that is more reliable as it is built with multiple redundancies for greater reliability," Mr. Nathan added.
"After we renew the signalling system, faulty track circuits will no longer cause prolonged delays for commuters. "We apologise for the inconvenience caused to affected passengers.” SMRT first tweeted about a fault at Khatib station on the NSL at 7:19am, when it warned commuters to expect a 10-minute delay from Bishan to Khatib. This was later revised to 20 minutes. Normal service resumed more than five hours later, at around 12:40pm.
Travel on the EWL from Paya Lebar to Simei was also affected by a similar fault at 8:35am, with commuters experiencing delays of up to 15 minutes. Normal service on the EWL resumed at around 11:00am. SMRT said last week that all-day trials of the new signalling system on the NSL will be carried out on Sundays, starting from 16th April. Trains are expected to run normally during the trials.
Commuters on both the North-South (NSL) and East-West (EWL) Lines were affected by delays throughout Tuesday (18th April) morning. SMRT, which operates both lines, told The Straits Times that the delays were caused by track circuit faults. Such faults, which are not the same as the more common track faults, arise because of ageing track circuits.
In a statement on Tuesday afternoon, SMRT's Vice President for Corporate Information and Communications Patrick Nathan said the faults resulted in trains having to travel at a slower speed for commuter safety.
"In the new signalling system that is currently being tested, the ageing track circuits will be replaced with a more advanced system that is more reliable as it is built with multiple redundancies for greater reliability," Mr. Nathan added.
"After we renew the signalling system, faulty track circuits will no longer cause prolonged delays for commuters. "We apologise for the inconvenience caused to affected passengers.” SMRT first tweeted about a fault at Khatib station on the NSL at 7:19am, when it warned commuters to expect a 10-minute delay from Bishan to Khatib. This was later revised to 20 minutes. Normal service resumed more than five hours later, at around 12:40pm.
Travel on the EWL from Paya Lebar to Simei was also affected by a similar fault at 8:35am, with commuters experiencing delays of up to 15 minutes. Normal service on the EWL resumed at around 11:00am. SMRT said last week that all-day trials of the new signalling system on the NSL will be carried out on Sundays, starting from 16th April. Trains are expected to run normally during the trials.
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