Was inferior composite wood used for MRT sleepers?
August 5th, 2013 | Author: Editorial

On 14 May 2013, ST reported that SMRT and LTA will accelerate a programme to replace timber sleepers on the ageing North-South and East-West lines to improve the resilience of the rail network in Singapore (‘LTA, SMRT to accelerate sleeper replacement on North-South and East-West lines‘). It said that SMRT aims to replace all 188,000 timber sleepers on the North-South Line by 2015, and on the East-West Line by 2016. On Saturday (3 Aug), SPH’s bilingual news and entertainment portal (www.omy.sg) published an interesting article [Link] claiming the timber sleepers have been discovered to be made of sub-standard wood. The article claims to have heard from an insider in the wood industry. It seems that some company has bought or otherwise acquired the old MRT timber sleepers (i.e. the timber sleepers that are to be gradually replaced by 2015 in the case of the North-South Line and 2016 in the case of the East-West Line). The company wants to cut these timber sleepers into smaller pieces to manufacture other products. As the sleepers used for the Malaysian railway line can last for decades with no decay, the company quite fairly assumed the sleepers used for our MRT network to be of similar quality. However the company was shocked when it cut the sleepers. They found that they are not made of hard wood at all. They are in fact made of composite wood. Furthermore, the wood has decayed. Apparently the company is not so much concerned about the loss of their investment in the “timber” sleepers as they are that such inferior wood has been used as sleepers for Singapore’s rail network. The lousy sleepers made of composite wood can hardly withstand the crushing weight of trains. If enough sleepers disintegrated, the rail would sink. That would split the track and signals would be interrupted. Train derailment might result. Maintenance staff replacing the wooden sleepers on the train tracks near Clementi MRT station. Rail operator SMRT and rail authority LTA will accelerate a programme to replace so-called timber sleepers on the ageing North-South and East-West lines to improve the resilience of the rail network. (ST Photo)
The article posed a number of questions to LTA:
1. Does the Govt know about this? Is it the reason SMRT and LTA want to change the sleepers?
2. Who purchased the inferior sleepers?
3. Was this the cause of the intermittent signal interruption problems in the MRT network in the past?
4. Was the slowing of our trains due to the realisation that the tracks are lined with inferior sleepers?
5. Is it a misunderstanding? In other words, are there in fact no problems at all with the sleepers? Read more of this post
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