Low pitched sound made by EWL and NSL trains
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This topic is about some low pitched sound made by the trains running on EWL and NSL.This sound is produced when the trains run on new tracks. Actually, most of it can be heard in NSL. For the EWL, the western side could be mostly heard. As for the eastern side, not so much.
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Originally posted by Kawac151:
This topic is about some low pitched sound made by the trains running on EWL and NSL.This sound is produced when the trains run on new tracks. Actually, most of it can be heard in NSL. For the EWL, the western side could be mostly heard. As for the eastern side, not so much.
Can elaborate more about the sound?
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Originally posted by Bus and Train LoVuR:
Can elaborate more about the sound?
If you take a train ride from Raffles place to City Hall (NB), you'll be able to hear it as it's really loud. But it'll sound back to normal once it approaches City hall.
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Originally posted by Kawac151:
If you take a train ride from Raffles place to City Hall (NB), you'll be able to hear it as it's really loud. But it'll sound back to normal once it approaches City hall.
It's caused by a turn. The sound made depends on the material of the rails and sleepers.
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The sound can sometimes be high-pitched as well.
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Originally posted by Kawac151:
If you take a train ride from Raffles place to City Hall (NB), you'll be able to hear it as it's really loud. But it'll sound back to normal once it approaches City hall.
Do you mean the screeching sounds? I think that's caused by the turn in the track. Happens around every turn.
Or is it that loud rumbling noise between stations such as Toa Payoh - Novena and Newton - Orchard? That I'm not quite so sure why that happens.
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Originally posted by willis_chong:
It's caused by a turn. The sound made depends on the material of the rails and sleepers.
What is sleepers?
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Originally posted by Samuel Lee:
What is sleepers?
Sleeper (not that sleeper on ur foot)
Sleepers is the wood/ Cement (BLE) on the track -
I hope this will help Sam and other..
I think TS talk about the STANDARD GAUGE..
Low Pitch sound from New Standard Gauge as you can see on the picture is old standard gauge wanna know why??
Silver Standard Gauge is Old Standard Gauge produce normal pitch/high pitch
Gold/Yellow-green Standard Gauge is the New/replacement gauge and thats why it produce low pitch..
this can been 1st seen at AMK to BIS station (as you can heard the low pitch when train goin to stop.)
edit: from guide rail -> STANDARD GAUGE -
What is the purpose of guide rails? and btw only guild rails appear at elevated stations and not inside tunnels, depot tracks neither??
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Originally posted by smrt3099:
What is the purpose of guide rails? and btw only guild rails appear at elevated stations and not inside tunnels, depot tracks neither??
It is to prevent the train from falling down the viaducts when it derails.
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Originally posted by Kawac151:
This topic is about some low pitched sound made by the trains running on EWL and NSL.This sound is produced when the trains run on new tracks. Actually, most of it can be heard in NSL. For the EWL, the western side could be mostly heard. As for the eastern side, not so much.
I think i get what you mean. When on a WB train and approaching Raffles Place, besides the motor sound, I would always hear a sound, with its pitch becoming lower and lower as the train decelerates into the station.
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Guide rails are the inner two rails, not the outer ones.
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I remember I read a long time ago that the NSL and EWL used "floating track slabs" in "sensitive areas" instead of the regular tracks set in concrete. I can't even remember where I read that, but I'd assume that tunneling underneath the Singapore River (between City Hall and Raffles Place) would be a sensitive area. Just an idea.
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Originally posted by Khairiano:
I hope this will help Sam and other..
I think TS talk about the Guide Rail..
Low Pitch sound from New Standard Gauge as you can see on the picture is old standard gauge wanna know why??
Silver Standard Gauge is Old Standard Gauge produce normal pitch/high pitch
Gold/Yellow-green Standard Gauge is the New/replacement gauge and thats why it produce low pitch..
this can been 1st seen at AMK to BIS station (as you can heard the low pitch when train goin to stop.)Thanks that has clarified me. Anyway, the new Standard Gauge one can be seen in CGL as well (But the train must go TNM bound in end of LTE time, because the middle track will be used for LTE trains going back to CHD and thus the CGL had no choice but to retro CGA - BNL / JKN line with the exception of returning to middle platform when approaching on TNM)
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Originally posted by willis_chong:
It is to prevent the train from falling down the viaducts when it derails.
So it means that in underground / depot tracks have no guide rails and if got a chance to observe such tracks, can only see Standard Gauge?
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sounds like a misalignment!!!!!or no accuracy in work ,poor maintenance shift in track alignment due to earthquakes......sabotage??......noises like that dont happen on new tracks.if they did the something is obviously rubbing it real hard
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In between Woodlands and Marsiling MRT Stations have.
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hmmmm
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Originally posted by smrt3099:
What is the purpose of guide rails? and btw only guild rails appear at elevated stations and not inside tunnels, depot tracks neither??
Singapore really waste too much on guide rails , even stations and straight tracks also put. Is not that Singapore have natural disasters.
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Originally posted by smrt3099:
What is the purpose of guide rails? and btw only guild rails appear at elevated stations and not inside tunnels, depot tracks neither??
Tunnel and elevated tracks don't need because the train will not derail onto a road (or something)
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Actually , IMO , reserve sidings don't need to put guide rails. (fully)
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Different standard gauge..
1st Picture show normal/old standard gauge
2nd picture is Replaced/New Standard Gauge thats why it produce low pitch sound -
Originally posted by Bus and Train LoVuR:
Singapore really waste too much on guide rails , even stations and straight tracks also put. Is not that Singapore have natural disasters.
You cannot say like that. Before things happen, we must know what are the possible things that might happen.
SMRT is currently running on standard gauge (1435mm). Guard rails are there for a reason. Assume that there is a train derailment, the bogie will get stuck to the guard rail, thus, won't cause any accidents such as, carriage topple down to the ground.
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Originally posted by Samuel Lee:
So it means that in underground / depot tracks have no guide rails and if got a chance to observe such tracks, can only see Standard Gauge?
Along the MRT network, all you see are Standard gauge. Not metre, not narrow, not wide, not broad. It is standard guage (1435mm).
Mostly guard rails are placed in places above ground level. Take a look at the stretch between Kranji - Marsiling, and Khatib - Yio Chu Kang. They do not have any guard rails in placed. Except for a small portion where the track goes over a canal.