- Joined
- Jul 14, 2008
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fucking wayang, blame everything / everyone except own blatant cost cutting that expose the barebones.
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Heavier trains may be a factor in disruptions
SMRT's newer and heavier fourth generation of trains may have caused the two major train disruptions last December, said the rail operator's executive vice-president of trains, Mr Khoo Hean Siang.
Speaking at the Committee of Inquiry hearing yesterday, he explained that the Kawasaki-Sifang trains are likely to have caused more vibrations. This could have caused the metal claws which hold the third rail from which trains draw power to become dislodged.
The new trains have run on both the North-South and East-West lines since the first fleet was brought in in May last year.
Mr Khoo, who reports directly to SMRT's chief executive, said he was especially worried that the new trains would cause more vibrations on the North-South Line. This is because the rail line has tighter curves compared to the other lines.
Use of the new trains on the North-South Line was subsequently stopped.
He also recounted how he walked along the track in the Dhoby Ghaut area after receiving news of the first disruption on Dec 15 and was "shocked" to see that about 40m of the third rail there had "collapsed".
Mr Khoo, who has been with SMRT for 27 years, said: "On the way, I saw that a lot of collector shoes had dropped... How could this happen? A lot of collector shoes were also twisted."
He was quizzed by the Attorney-General's Chambers on the increasing instances of train- wheel profiling done each year, almost doubling from 307 in 2004 to 533 in 2008.
Wheel profiling is done to keep the wheels of the trains in good condition. The wheels get flattened over time, especially if a train's emergency brakes are applied often, which can lead to excessive vibrations.
He also said SMRT plans to address the issue of "wheel flats" with the installation of a computerised system by the end of this year, or early next year. Currently, checks are done manually.
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Heavier trains may be a factor in disruptions
SMRT's newer and heavier fourth generation of trains may have caused the two major train disruptions last December, said the rail operator's executive vice-president of trains, Mr Khoo Hean Siang.
Speaking at the Committee of Inquiry hearing yesterday, he explained that the Kawasaki-Sifang trains are likely to have caused more vibrations. This could have caused the metal claws which hold the third rail from which trains draw power to become dislodged.
The new trains have run on both the North-South and East-West lines since the first fleet was brought in in May last year.
Mr Khoo, who reports directly to SMRT's chief executive, said he was especially worried that the new trains would cause more vibrations on the North-South Line. This is because the rail line has tighter curves compared to the other lines.
Use of the new trains on the North-South Line was subsequently stopped.
He also recounted how he walked along the track in the Dhoby Ghaut area after receiving news of the first disruption on Dec 15 and was "shocked" to see that about 40m of the third rail there had "collapsed".
Mr Khoo, who has been with SMRT for 27 years, said: "On the way, I saw that a lot of collector shoes had dropped... How could this happen? A lot of collector shoes were also twisted."
He was quizzed by the Attorney-General's Chambers on the increasing instances of train- wheel profiling done each year, almost doubling from 307 in 2004 to 533 in 2008.
Wheel profiling is done to keep the wheels of the trains in good condition. The wheels get flattened over time, especially if a train's emergency brakes are applied often, which can lead to excessive vibrations.
He also said SMRT plans to address the issue of "wheel flats" with the installation of a computerised system by the end of this year, or early next year. Currently, checks are done manually.
