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Post by Alight on Sept 18, 2018 16:48:51 GMT
When shafts between stations serve the running tunnels is this in the form of some kind of distributor* through the crown of the tunnel? I ask because whenever I travel between stations and feel that whoosh of air hitting the train (e.g. between Turnpike Lane and Manor House) I never see any evidence of the shaft from the passengers' perspective, suggesting it is bringing air in directly from above and not from the sides. Of course, some retrofit shafts do provide air from the sides e.g. Down Street, which comes from the platforms. *I am guessing this looks not dissimilar to the image third from the bottom of this post. |
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Post by rummer on Sept 18, 2018 17:11:19 GMT
Turnpike Lane to Manor House is indeed at the top of the tunnel, there is a shaft on the west bound tunnel head at Arsenal
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Post by Alight on Sept 22, 2018 12:57:37 GMT
Thanks rummer. Isn't it just a matter of the Arsenal one being a station shaft?
I've been in one of the new Crossrail intermediate shafts and they have a staircase, lift and quite a large headhouse. At track level the distributors come in from a cross passage between the running lines. To think the Manor House to Turnpike Lane example is just a chimney!
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Post by crusty54 on Sept 22, 2018 18:19:49 GMT
There are intermediate shafts on the Victoria line.
Some are escape shafts.
On Crossrail the shafts have two staircases. One is for escape and the other for emergency services to access track level. The lift is an escape route for wheelchair users.
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Post by banana99 on Sept 22, 2018 22:49:42 GMT
There are intermediate shafts on the Victoria line. Some are escape shafts. On Crossrail the shafts have two staircases. One is for escape and the other for emergency services to access track level. The lift is an escape route for wheelchair users. There's lifts in the shafts? Wow. |
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Post by rsdworker on Sept 22, 2018 23:20:08 GMT
There are intermediate shafts on the Victoria line. Some are escape shafts. On Crossrail the shafts have two staircases. One is for escape and the other for emergency services to access track level. The lift is an escape route for wheelchair users. There's lifts in the shafts? Wow. yes - in Jubbiee line extestion - there is evaucation lifts at each station which provides escape route out of station for disabled persons - crossrail has those i think |
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Post by Alight on Sept 23, 2018 22:17:50 GMT
There are intermediate shafts on the Victoria line. Some are escape shafts. One might find oneself in Gibson Square gardens, for example! |
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Post by spsmiler on Sept 25, 2018 20:44:31 GMT
There is an access shaft not far from where I live - its between Leytonstone and Newbury Park and I think that during the war this was used by people who worked in the subterranean Plessey factory that occupied the (then) unopened tuinnels.
Simon
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