The signalling fault which had been discovered at 2.45pm today on the Northeast Line has been fixed. Train frequencies however continue to be lower due to the traction power fault which will only be resolved at the end of revenue service today.
Train frequency during the evening peak period is expected to be between 7.5 and 8 minutes and journey times from Punggol to Harbourfront is expected to be in the range of 33 and 35 minutes, barring any unforeseen circumstances.
Goodwill ambassadors are being deployed to stations that have high passenger traffic such as Harbourfront and Outram Park Stations. Free bus shuttles are being activated and will run during the evening peak period from 5.30pm along the entire line.
The initial cause of the delay in NEL services was traced to a fault in the traction power system where a stainless steel U-shaped bolt holding the cantilever arm of the overhead power cables broke in the northbound tunnel between HarbourFront and Outram Park Stations. As a result of the breakage in the bolt, power wires were misaligned. To avoid the risk of damage to the trains and overhead power wires, a section of the tunnel was closed. This meant that trains could only turnaround at one point in the tunnel - instead of two normally.
To restore the Line to normalcy, the traction power system has to be shut down, thereby enabling engineers to enter the tunnel to replace the broken bolt. This however means that there will be no train services on NEL between HarbourFront and Dhoby Ghaut for a period of time - resulting in massive inconvenience to commuters. Management has therefore decided to undertake repair works, which are expected to last about two hours, after revenue service ends today.
At about 2.45pm, a new fault in the signalling system was discovered. That problem has since been resolved.
We deeply apologise to all affected passengers for the inconvenience caused.