The North-East Line was hit by delays during the Wednesday morning rush hour due to a train fault at Little India station.
The Land Transport Authority said yesterday that the flooding of the Bishan MRT station tunnel on 7th October was 'entirely preventable'.
The Land Transport Authority has formed a standing committee with water agency PUB to look into the prevention of floods in tunnels.
Transport Minister Khaw Boon Wan made a statement in Parliament yesterday regarding his plans to prevent the flooding of MRT tunnels in the future.
In light of Monday's NEL breakdown, the LTA said It will not use off-service hours on Sunday nights to try out new trains in case a fault occurs.
Transport Minister Khaw Boon Wan wrote in his blog that train testing could have been limited to the weekend, in response to Monday's NEL breakdown.
Free bus services were made available islandwide after train service on the North-East Line was disrupted for two hours on Monday morning.
Signalling faults caused significant disruption to North-East Line (NEL) services during morning peak hours, the fourth major incident on the NEL this year.
According to preliminary investigations, faulty couplers could be the reason for a two-hour service disruption on the North-East Line two weeks ago.