theageofthetra
On Moderation
- Joined
- 27 May 2012
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North Kent East. Should have been considered during LB rebuild but now too late as former derilict areas around it full of new housing.
Werrington is in development and "should" start soon.My personal choice would be Werrington, north of Peterborough, Colwich, Euxton and Doncaster South between the Sheffield & east Coast Lines and Doncaster North between the East Coast and North Lincolnshire lines.
Forgive my ignorance, but the north Kent east junction is immediately West of Deptford isn’t it?
What difference would it make to Greenwich line services if that junction was grade separated? Would it turn it into a proper metro service with trains running every five minutes at regular intervals for example?
Would grade separation west of Barnes open up much capacity on the Windsor lines?
I wonder whether a flyover North of Northallerton might provide increased capacity on the ECML, given the number of services heading towards Thornaby - or if trains would just catch up to the next bottleneck quicker.
Rugby remodelling wasn't grade separation as such, but reconfigured the layout to make better use of the grade separation already there
The Proof House Junction re-modelling at Birmingham also made much better use of the existing grade separations.
Several effective grade separations around the London Overground from Highbury to Clapham Junction via Surrey Quays, albeit with several busier flat junctions too.
You could say that what we've had recently is Airport Jn II and III.
Can I put a vote in for Balham, and of course Windmill Bridge north of East Croydon.
I've just seen that plan, and the idea of making the existing Down Slow platform into an island looks practical. It already has a bay at the down end..... it’s another vote for woking, particularly I like the proposed plan on page 1
If that's so, then perhaps Woking would be preferable in priority terms to Windmill Bridge, but sorting out the junctions north of E. Croydon surely has to be hugely beneficial?I think you overplay the difficulty of building the Woking flyover. Having watched them build all the new stuff at Reading, Woking would appear simpler all round. Only single track needed for a start. Whatever the merits of your suggestion, and in a national priority list i think it’d be very low, I don’t think you can hang build-ability of Woking on it...
I wasn't aiming to suggest building something as a higher priority because it was relatively straightforward, the way I see it Windmill Bridge is probably still a higher priority than Woking. The overall timescales to do Windmill Bridge (as it's an umbrella term for a number of jobs) would presumably be significantly longer than Woking so might start first but finish second...If that's so, then perhaps Woking would be preferable in priority terms to Windmill Bridge, but sorting out the junctions north of E. Croydon surely has to be hugely beneficial?
The through platform (P6) is also clearly described and shown in Network Rail's publicised plans in the Wessex route study. Having 5 through platforms would allow more trains to stop, with crossovers to allow 3 platforms to be used in the up direction in the morning peakI've just seen that plan, and the idea of making the existing Down Slow platform into an island looks practical. It already has a bay at the down end.
An extra platform here will be worthwhile at some point - already, in my experience, Coastway arrivals from the east are routed into the Up platform semi-regularly.If we’re throwing money everywhere, I’d grade separate Havant, and put an extra island platform in the through road so that you could have 2 arrivals at once into Havant.
I think MarkyT's version is really just his ideas for fine tuning the layout, he first came up with it a few months back in the previous thread about Woking grade separation.
Wouldn't Wigston be a contender too?
Haughley Junction often gets thrown about as a good place for a flyover perhaps Not sure if its technically possible due to the pre-existing gradients.
Is there more that could be done along this stretch? It is a rather laboured journey from Southampton /Portsmouth to (Arundel) Horsham and likewise to (Angmering) Brighton with many conflicting junctions.An extra platform here will be worthwhile at some point - already, in my experience, Coastway arrivals from the east are routed into the Up platform semi-regularly.
Newbridge, Hyndland East, Portobello.
Also, Newbridge will be 12tph soon, currently 10tp. Both of those could do with one. A flyover at Newbridge may remove the need for the Almond chord, if possible.
Or see if platforms can be installed on the current freight "Northallerton avoiding" lines for those services which head towards Eaglescliffe
Haughley Junction often gets thrown about as a good place for a flyover perhaps Not sure if its technically possible due to the pre-existing gradients.