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| London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#1
January 30th 07, 03:44 PM
posted to uk.transport.london
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Why is the Victoria line so hot these days?
I've noticed the victoria line seems to be much warmer than the other
lines these days (or maybe it always has been but I've not noticed). Is this because the trains are more frequent , or they use up more energy on ATO , or the tunnel ventilation isn't so good , or is there some other reason? B2003 |
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#2
January 30th 07, 04:12 PM
posted to uk.transport.london
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Why is the Victoria line so hot these days?
Boltar wrote:
I've noticed the victoria line seems to be much warmer than the other lines these days (or maybe it always has been but I've not noticed). Is this because the trains are more frequent , or they use up more energy on ATO , or the tunnel ventilation isn't so good , or is there some other reason? It's you - steaming about the yoof of today. E. |
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#3
January 30th 07, 05:55 PM
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Why is the Victoria line so hot these days?
Victoria line is completely underground - it does not have a natural
source of fresh air, like most other lines. |
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#4
January 30th 07, 06:04 PM
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Why is the Victoria line so hot these days?
In message . com,
Boltar writes I've noticed the victoria line seems to be much warmer than the other lines these days (or maybe it always has been but I've not noticed). Is this because the trains are more frequent , or they use up more energy on ATO , or the tunnel ventilation isn't so good , or is there some other reason? Perhaps its because Victoria-line trains remain entirely underground while in service. -- Paul Terry |
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#5
January 30th 07, 06:12 PM
posted to uk.transport.london
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Why is the Victoria line so hot these days?
"Boltar" wrote in message ups.com... I've noticed the victoria line seems to be much warmer than the other lines these days (or maybe it always has been but I've not noticed). Is this because the trains are more frequent , or they use up more energy on ATO , or the tunnel ventilation isn't so good , or is there some other reason? B2003 Of the deep tube lines, the Central, Northern and Jubilee are cooler as they use more modern traction and braking technology that doesn't create so much heat. The Vic should be cooler when it gets new trains in 2009. |
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#6
January 30th 07, 07:28 PM
posted to uk.transport.london
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Why is the Victoria line so hot these days?
"Boltar" wrote in message ups.com... I've noticed the victoria line seems to be much warmer than the other lines these days (or maybe it always has been but I've not noticed). Is this because the trains are more frequent , or they use up more energy on ATO , or the tunnel ventilation isn't so good , or is there some other reason? B2003 The CCO (Coasting Control Override) trial might have some effect. Andrew |
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#7
January 31st 07, 08:40 AM
posted to uk.transport.london
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Why is the Victoria line so hot these days?
On Jan 30, 8:28 pm, "Andy" wrote:
"Boltar" wrote in message ups.com... I've noticed the victoria line seems to be much warmer than the other lines these days (or maybe it always has been but I've not noticed). Is this because the trains are more frequent , or they use up more energy on ATO , or the tunnel ventilation isn't so good , or is there some other reason? B2003 The CCO (Coasting Control Override) trial might have some effect. Whats this then? B2003 |
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#8
February 1st 07, 12:38 PM
posted to uk.transport.london
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Why is the Victoria line so hot these days?
On Jan 31, 9:40 am, "Boltar" wrote:
On Jan 30, 8:28 pm, "Andy" wrote: "Boltar" wrote in message oups.com... I've noticed the victoria line seems to be much warmer than the other lines these days (or maybe it always has been but I've not noticed). Is this because the trains are more frequent , or they use up more energy on ATO , or the tunnel ventilation isn't so good , or is there some other reason? B2003 The CCO (Coasting Control Override) trial might have some effect. Whats this then? B2003 I'm not sure if the CCO would be an issue - it's only enabled on three stretches: Seven Sisters - Finsbury Park (southbound only) Oxford Circus - Green Park (southbound only) Green Park - Victoria (southbound only) For anyone interested this features keeps the motor going rather than coasting once the train's reached its maximum speed. I think the heat issue is more likely to be caused by people not opening the end of car windows on a stock that, otherwise, has quite limited air circulation. When the end-car windows are open at both ends I think the trains are pretty reasonable temperature-wise Tom |
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#9
February 1st 07, 01:03 PM
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Why is the Victoria line so hot these days?
On Feb 1, 1:38 pm, "Tom Page" wrote:
For anyone interested this features keeps the motor going rather than coasting once the train's reached its maximum speed. I think the heat Whats the advantage of that? Wouldn't it just waste electricity and cause excess heat as mentioned? B2003 |
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#10
February 1st 07, 01:59 PM
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Why is the Victoria line so hot these days?
On 1 Feb, 14:03, "Boltar" wrote:
On Feb 1, 1:38 pm, "Tom Page" wrote: For anyone interested this features keeps the motor going rather than coasting once the train's reached its maximum speed. I think the heat Whats the advantage of that? Wouldn't it just waste electricity and cause excess heat as mentioned? B2003 It's not exactly rocket science that if one coasts one loses speed due to friction, so keeping the motor going allows faster journey speeds. Of course, the benefit of this has to be weighed up against energy use and maintenance requirements. Tom |
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