towerman
My status is now now widower
Posts: 2,970
|
Post by towerman on Mar 29, 2007 22:44:20 GMT
They're installing a new Watford South junction over the Easter weekend 1200 metres north of Moor Pk.It will be commissioned over the August Bank Holiday and will replace the existing south & west junctions.
|
|
Ben
fotopic... whats that?
Posts: 4,282 
|
Post by Ben on Mar 29, 2007 22:57:03 GMT
Any significant changes?
|
|
towerman
My status is now now widower
Posts: 2,970
|
Post by towerman on Mar 30, 2007 4:15:59 GMT
Don't quote me,but it looks like they're moving the south junction closer to Moor Pk and removing the link between Ricky and Watford via the west Junction.
|
|
|
|
Post by Hutch on Mar 30, 2007 6:16:38 GMT
A quiet end to the Watford triangle ?
|
|
Oracle
In memoriam
RIP 2012
Writing is such sweet sorrow: like heck it is!
Posts: 3,234
|
Post by Oracle on Mar 30, 2007 6:17:41 GMT
If that is the case, does that not mean the loss of a passenger-carrying route that closure processes have to go through? Am I missing something? It carries advertised services.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Mar 30, 2007 9:55:34 GMT
Plus, the loss of the north curve removes the ability for A stock (and later, S stock) trains to be turned end-for-end on the existing triangle. There is also the fact that when if the Croxley Link does result in trains being extended to Watford Junction, retaining the north curve allows direct services from Amersham to operate.
|
|
|
|
Post by c5 on Mar 30, 2007 12:30:52 GMT
I don't think that the North Curve is going. It is a very useful part of the Railway. The South Junction is being moved further south (I guess to enable higher speeds over the pointwork).
TransPlant also use the Watford Junctions to turn their trains.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Mar 30, 2007 14:54:58 GMT
As an aside, if the move South Jct further South, towards Moor Park; I hope they have considered the bridge over the river...
Is this going to be a reduced radii curve on existing alignment, or a completely new track bed? also, what of the substation at same location...?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Mar 30, 2007 16:02:53 GMT
Croxleyhall substation is in the center of the triangle, up against the hill that the North Curve tunnel runs through. I highly doubt it will be affected by the repositioning.
Ditto for IMR 'JJ'.
|
|
|
|
Post by cetacean on Mar 30, 2007 16:52:59 GMT
1200 metres north of Moor Park is here. That makes no sense. Any new alignment would need two new bridges and a very sharp curve by the north junction. Are you sure they're not just moving the slow/fast crossover or something? |
|
|
|
Post by c5 on Mar 30, 2007 17:12:28 GMT
All they are doing is moving the pointwork for the South Junction closer to Moor Park.
|
|
DWS
every second count's
Posts: 2,487
|
Post by DWS on Mar 30, 2007 17:22:21 GMT
All they are doing is moving the pointwork for the South Junction closer to Moor Park. Plus removing the movable angles. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Mar 30, 2007 17:30:56 GMT
All they are doing is moving the pointwork for the South Junction closer to Moor Park. Plus removing the movable angles. Specifically, one set of moveable angles from the convergence of the fast and slow lines at Watford West Junction, between signals JJ48 and JJ71. |
|
Ben
fotopic... whats that?
Posts: 4,282
|
Post by Ben on Mar 30, 2007 18:18:14 GMT
Slightly OT, but would one ever be likely to see a connection from fast to slow leading to the Watford branch, so as to let fasts run up to Watford Junction, or maybe even Chilterns from Marylebone?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Mar 30, 2007 18:27:36 GMT
If Harsig gets his way, such a connection would not be here at Watford South Junction, but rather at Harrow North Junction. He has created signalling diagrams that replace the existing flat double crossover with a set of high-speed ladder junctions that allow trains from either pair of lines to switch to the other pair at full speed. The layout also allowed for the possibility that the fast lines could become bidirectionally signalled.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 13, 2007 21:15:58 GMT
I have driven over this section of track a few times this week and the work is probably only half done. The layout seems to make good sense though - no pointwork on the south curve necessary anymore - perhaps this will do away with the 20mph speed restriction.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 13, 2007 21:39:49 GMT
Interesting!
I haven't had a chance to go up that way lately so I haven't been able to see what they've done. Are you suggesting that trains approaching Rickmansworth from the fast lines no longer cross the flat junction between the north curve and the fast lines?
|
|
Tom
Administrator
Signalfel?
Posts: 4,198
|
Post by Tom on Apr 13, 2007 21:49:06 GMT
Not yet - the Easter work was to put down most of the ironwork for the new layout and then plain line it.
Have you looked at the fruits of my labours at White City yet?
|
|
Oracle
In memoriam
RIP 2012
Writing is such sweet sorrow: like heck it is!
Posts: 3,234
|
Post by Oracle on Apr 13, 2007 22:27:03 GMT
Is the North Curve and its associated passenger services to be retained? There seemed to have been an ambiguity in that respect, sorry.
I like this video:
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 13, 2007 22:48:34 GMT
Not yet - the Easter work was to put down most of the ironwork for the new layout and then plain line it. Have you looked at the fruits of my labours at White City yet? Only from the H&C. I haven't had a chance to get a close look - it looked like you were taking out part of the eastbound London-end scissors crossover and rebuilding the formation. |
|
Ben
fotopic... whats that?
Posts: 4,282
|
Post by Ben on Apr 14, 2007 0:05:03 GMT
Any chance of a diagram for the new layout at watford?  |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 14, 2007 10:54:43 GMT
apparantly as a result of these changes the moor park n/b starters will become semi autos(hopefully with king working!)
|
|
|
|
Post by Tubeboy on Apr 14, 2007 10:57:25 GMT
That will get MSO excited! ;D
|
|
|
|
Post by stanmorek on Apr 14, 2007 18:06:53 GMT
Just a note. The rail crane Balfour Beatty wanted to use for the work had to be assessed for use on the embankments. If the crane was under normal wheeled operation then the reach of the jib would be limited. To get a bigger jib lifting radius then outriggers had be extended and transfer weight onto the embankment as the jib moves around. The assessment by earth stuctures team was to analyse slope stability of embankments. www.bbrail.com/DynamicContent/Images/ImageLibrary/09_Kirow%20Crane.jpg |
|
|
|
Post by Hutch on Apr 14, 2007 18:12:57 GMT
Ah! So there is a place for geologists on the UndergrounD - Make's mental note -  |
|
|
|
Post by stanmorek on Apr 14, 2007 18:17:13 GMT
Mainly geotechnical engineers though I believe a small number of members are trained geologists.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 15, 2007 11:25:25 GMT
Going off topic a bit, but keeping with the title of the thread.
Wasn't there a plan once to run the Met to Watford Junction through Croxley?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 15, 2007 11:39:48 GMT
|
|
Oracle
In memoriam
RIP 2012
Writing is such sweet sorrow: like heck it is!
Posts: 3,234
|
Post by Oracle on Apr 15, 2007 17:18:13 GMT
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 16, 2007 18:15:50 GMT
Further to the post above by Oracle (thanks for the link to the photo ), here is another picture taken on the Watford Junctions. I have always been a little reluctant to put this picture up, but this seems the ideal time to "come out of the closet" with it! Click on the image to go to larger image on my site, with caption:  Met No. 5 about to disappear into the short tunnel on the north curve at Watford Junctions, at the rear of the brakevan 50th anniversary special, en route from Watford to Amersham. Obviously, I shouldn't really have been there, but I plead artistic licence (or something like that!). At the time I was used to working on the P-Way on the Ffestiniog Railway and on the North York Moors Railway, so no stranger to the rail environment - though neither of those had third and fourth rail! No-one on the train seemed bothered by my presence and it was a one-off opportunity. I apologize and humbly beg forgiveness... Regards, Geoff |
|
