Train services on the Thomson-East Coast Line (TEL) resumed on Sunday, May 3, following a three-hour disruption triggered by a signalling fault. The incident caused significant delays across the line before services were progressively restored.
Timeline of the Disruption
The issue began at approximately 6:55 am, starting as a minor delay affecting services between Stevens and Caldecott stations. By 7:35 am, SMRT reported that the delay had expanded to impact the entire stretch of the TEL.
The situation escalated roughly 10 minutes later when services between Caldecott and Orchard stations were disrupted. By 8:48 am, the entire TEL experienced a disruption, which took about 30 minutes to be progressively restored.
Despite the general restoration of the line, services between Caldecott and Orchard stations remained unavailable from 8:48 am until 10:48 am.
Root Cause and Technical Failure
Lam Sheau Kai, president of SMRT Trains, attributed the disruption to a signalling fault. He stated that this occurred following signalling tests conducted by the original equipment manufacturer, Alstom, the previous night.
According to Lam, some trains were held at affected platforms while the system was being reset. This specific technical failure resulted in the complete loss of train services between Caldecott and Orchard stations.
Recovery and Passenger Support
SMRT confirmed via a Facebook post at 10:48 am that services between Caldecott and Orchard stations had resumed, though they were operating at a slower speed.
To mitigate the impact on commuters, bridging bus services were deployed. Free regular bus services were provided between Woodlands North and Marina Bay stations at designated stops along the affected stretch.
Moving forward, SMRT and Alstom engineers may continue to monitor the system to ensure stability. There is a possibility that testing protocols could be reviewed to prevent similar faults following future maintenance.
Frequently Asked Questions
What caused the TEL train disruption on May 3?
The disruption was caused by a signalling fault that followed signalling tests conducted by the original equipment manufacturer, Alstom, the night before.
Which stations were most affected by the service outage?
Train services were specifically unavailable between Caldecott and Orchard stations from 8:48 am until 10:48 am.
How did SMRT assist affected commuters?
SMRT provided bridging bus services and free regular bus services between Woodlands North and Marina Bay stations at designated bus stops.
How do you consider public transport operators can better manage the risks associated with overnight system testing?
