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interception-7 — Signallings
by-nc-nd
Published: 2011-02-20 05:27:43 +0000 UTC; Views: 305; Favourites: 7; Downloads: 3
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Description
At Bukit Timah Railway Station, Singapore, a station operated and owned by KTM (Keretapi Tanah Melayu Berhad) still uses the old signalling method, consisting of the levers, and the key token. The signals above are set for the northbound train. (Starting -> Main Inner Home -> Main Outer Home -> Distant)Not all stations in Malaysia are still using this system. Most has upgraded to Push-button type of Signalling system - in short, no levers, just buttons). They also don't rely on key token anymore.
Soon, the railway line in Singapore will be closed... And the only place that has the key token still available will be at the East Coast sector, between Gemas - Tumpat.
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Comments: 8
The suburban railway line I live on still has an area of mechanical signalling just like this. It is widely derided by the media as being "ancient 19th century technology", but it works well and is very reliable. Much more so than the electronic and software based systems that have replaced it everywhere else I think!
It is surprising to see such an installation still in use in Singapore, here the media always says our trains should be more like yours! Little do they know they already are...
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Well, sorry for the late reply though. Been quite some time since I logged in
Anyway, its very sad that the KTM railway line in Singapore is gone. After 1 July 2011, no more KTM trains are running into Tanjong Pagar, where the southern end of the terminal used to be. For now, its been cut short and it ends at Woodlands. Very sad indeed.
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Signalling and junction setting system on the photo is not as old as you think. It's still in use on many stations in Europe.
Interesting blue "bag" above the levers, what's for?
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Ah.. I see. Well, this system will be gone soon - double tracking and electrification projects. Furthermore the Singapore sector will have to evacuate and move its operations to Woodlands.
The bag is actually black, too much edits I guess haha. Hmm, that bag contains the key token, a form of authority that allows the driver to enter the next block section. No key = Can't proceed. It's a form of safety device, besides using signals.
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Key token, in fact, is only a 'historical' system in Europe now. But electro-mechanical systems are very popular, also on electrificated lines. And in many cases this system work together with modern computer-based systems.
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