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| London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#1
August 18th 08, 01:05 AM
posted to uk.transport,uk.transport.london
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TfL Admits Livingstone Regime Deliberately Obstructed Traffic Flows
Brimstone wrote:
The Hanger Lane underpass long predates the gyratory which sits on top of it. The underpass is shown on a very early 60s A-Z map of London. Was it lengthened when the gyratory was put in? It seems too long to have been built just to go under a crossroads. |
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#2
August 18th 08, 07:19 AM
posted to uk.transport,uk.transport.london
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TfL Admits Livingstone Regime Deliberately Obstructed Traffic Flows
John Rowland wrote:
Brimstone wrote: The Hanger Lane underpass long predates the gyratory which sits on top of it. The underpass is shown on a very early 60s A-Z map of London. Was it lengthened when the gyratory was put in? It seems too long to have been built just to go under a crossroads. Nope, it is as it has always been. If you look at a plan view of the gyratory, you'll see that it is to the north of the A40 and its underpass. Even before the gyratory was built, the junction was a large one. |
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#3
August 18th 08, 08:16 AM
posted to uk.transport,uk.transport.london
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TfL Admits Livingstone Regime Deliberately Obstructed TrafficFlows
John Rowland wrote:
Brimstone wrote: The Hanger Lane underpass long predates the gyratory which sits on top of it. The underpass is shown on a very early 60s A-Z map of London. Was it lengthened when the gyratory was put in? It seems too long to have been built just to go under a crossroads. It is as long as it is due to the need for its depth to be greater than normal because it passes under "the built environment" (ie, it is more of a tunnel than a cut and cover underpass) and because of the need to keep the approach gradients as low as possible. |
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