Low pitched sound made by EWL and NSL trains

Kawac151 SG

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.

Bus and Train LoVuR SG

Can elaborate more about the sound?

Kawac151 SG

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.

willis_chong SG

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.

Kawac151 SG

The sound can sometimes be high-pitched as well.

mrtdude5 SG

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.

Samuel Lee SG

It's caused by a turn. The sound made depends on the material of the rails and sleepers.

What is sleepers?

Khairiano SG

What is sleepers?

Sleeper (not that sleeper on ur foot)

Sleepers is the wood/ Cement (BLE) on the track

Khairiano SG

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

smrt3099 SG

What is the purpose of guide rails? and btw only guild rails appear at elevated stations and not inside tunnels, depot tracks neither??

willis_chong SG

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.

jcqh SG

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.

joeyfjj SG

Guide rails are the inner two rails, not the outer ones.

mrtdude5 SG

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.

Samuel Lee SG

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)

Samuel Lee SG

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?

TERMINATOR3000 SG

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

TIB1234T SG

In between Woodlands and Marsiling MRT Stations have.

TERMINATOR3000 SG

hmmmm

Bus and Train LoVuR SG

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.