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The Singing Tracks at Turnham Green
TheOneKEA wrote:
I live in Richmond and take the District Line into Central London about once a week. Sometimes I change trains at Turnham Green to go to Ealing Broadway. When I am at Turnham Green, I have noticed that the tracks make strange noises when either a Piccadilly or a District train is approaching. No matter how fast the incoming train is traveling, the tracks twang, rattle and vibrate like huge springs are being snapped back and forth. Once the train has passed by, the sound continues until the train is well away from the platform. I have not heard this anywhere else on the Underground except at Turnham Green and some of the stations east of it (the tracks at Earls Court and Victoria make the sound, but it's much more faint than at Turnham Green). Does anyone have a clue as to what I'm hearing? To change the subject slightly, there is a similar "singing" sound from the overhead power lines at Ealing Broadway station; at least, that's where it appears to be coming from. It is constant, i.e. it doesn't start up just when a train is approaching, and it is quite loud. I haven't noticed it on other lines with overhead electrification, so I wonder what is causing it? -- John Ray, London UK. Mail to mefp49 is unlikely to be read. I can be contacted at xcf70 (same ISP). |
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