Home |
Search |
Today's Posts |
|
London Transport (uk.transport.london) Discussion of all forms of transport in London. |
|
LinkBack | Thread Tools | Display Modes |
#10
|
|||
|
|||
Post office railway reuse
On 26 May, 14:02, Paul Terry wrote:
Deep enough to avoid all of the sub-surface structures (foundations, tube tunnels, etc) that are in the way of Crossrail. The tiny Post Office railway was able to skirt round these, but that's not possible for Crossrail (see below) - and, of course, there are many more tall buildings now than there were when the P.O. railway was built. Looking at the detailed planning briefs for crossrail, it shows the Post Office railway tunnels as well. They don't appear to skirt round anything - they take a fairly direct route. And while its true that there are more tall buildings now than when the P.O. railway was built, the buildings actually on its route don't get much taller than Mount Pleasant. the Post Office Railway doesn't have a straight enough alignment - it runs north of Oxford Street, curving up to Wimpole Street and then coming back south before the big loop up to Mount Pleasant. Straight enough for what? Ten-carriage trains of mainline proportions travelling at up to 100kph through the tunnels. (a) Why do they have to have ten carriages? What's wrong with more but shorter trains? (b) 100kph when they have to stop at stations every 500 yards or so is absurd. Yes, but Crossrail is nothing like a tube line - it is for mainline services travelling at nearly three times the speed of tube trains in the tunnels (and up to 160kph on the surface sections). I don't see that as convincing rational. There's nothing saying its compulsory for any cross-london relief for the central line to be built for mainline trains. And the speed of tube trains in central london is around 15mph, so you're talking about a tunnel that can cope with just 45mph. It doesn't need to hug oxford street when its not at a station, not that the current Crossrail's Hanover Square and Dean Street Stations are on Oxford Street either. No, it doesn't need to hug Oxford Street (in fact, it runs slightly south of the Central line), but it does have to be relatively straight to achieve the anticipated speeds. Incidentally, there's no station at Hanover Square - it is simply the eastern ticket hall for Bond Street station (a) Its a station (b) Its at Hanover Square Do you know how to put those two facts together in a meaningful way? Crossrail is not really comparable with a tube service, though. That's an absurd, rather circular, claim. |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Post Office Railway - mothballed? | London Transport | |||
Post Office Railway in Hudson Hawk, Thursday 9pm on FIVEUS (Freeview 35) | London Transport | |||
Post Office Railway on Hudson Hawk, Channel 5, 9pm to 11pm tonight (Sunday) | London Transport | |||
Mail Rail (Post Office Railway) - Hudson Hawk on Channel 5 this Sunday | London Transport | |||
Post Office Railway? | London Transport |