class411
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Post by class411 on Aug 10, 2013 7:35:37 GMT
Does anyone know why district line trains operate at a severely reduced speed when approaching Gunnesbury westbound? (Well before it would need to decelerate for the station.)
When I first noticed it some years ago I assumed it must be track work in progress but last week I used the service and it is still happening.
I couldn't swear it happens on every journey because I've become so used to it that I often don't even register the fact, particularly if I'm reading. It certainly happens a lot, though, and it's not the normal profile for a driver slowing for a signal. The train slows right down and continues for some time at a steady, slow, speed, before, IIRC, speeding up again to get to the station.
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Post by Dstock7080 on Aug 10, 2013 8:04:02 GMT
There is a 15mph permanent speed restriction in both directions approaching the station.
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class411
Operations: Normal
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Post by class411 on Aug 10, 2013 9:38:13 GMT
There is a 15mph permanent speed restriction in both directions approaching the station. Well that certainly explains it. Of course, it does beg the question: why? As there's no severe bend there, is it to avoid shaking something nearby? Are there any other permanent restrictions on the underground that cause trains to crawl along straightish sections of track that aren't approaches to a hazard? I remember years ago trains between Gloucester Road and HSK would always crawl along and/or stop for a longing break but that felt more like a signalling thing. (They may still do it but I haven't used that stretch for many years.)
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Post by melikepie on Aug 11, 2013 19:10:29 GMT
Perhaps it is due to both the District Line and North London Line merging and there being a compromise with the railways' electrics
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Deleted
Deleted Member
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Post by Deleted on Aug 11, 2013 20:11:39 GMT
The traction current is already 750v DC (led to believe its more nearer to 700v) at that point, the traction current boundary is just below Chiswick Park station.
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roythebus
Pleased to say the restoration of BEA coach MLL738 is as complete as it can be, now restoring MLL721
Posts: 1,275
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Post by roythebus on Sept 19, 2013 21:04:24 GMT
The 15mph limit has always been there on the w/b as far back as I can remember, and that's 1970! There was no limit on the e/b approaching Gunnersbury, but 15 across the double junction.
Mind you, the "old" stock didn't have speedos, so there was usually a liberal interpretation of 15 mph.
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