NotATrainspott
Established Member
- Joined
- 2 Feb 2013
- Messages
- 3,304
One of the reasons that the original Euston rebuild fell through was that it was then calculated that it would take longer to build than predicted and wouldn't allow it to open for the necessary 2026 date. The Hybrid bill proposal is capable of being built in the right time frame but now since the Higgins Report, the level of redevelopment will probably end up being the same or similar to what it was to begin with. The construction time will be inversely proportional to the amount of disruption that is allowed to be caused to passengers - if Euston were closed completely the rebuild would take only a couple of years but that clearly cannot happen. What kind of diversions and service changes could be done to allow more of the redevelopment to happen at once?
There are likely some very glaring flaws in my ideas but they're just some thoughts which had been going through my mind when thinking about the rebuild. The cost of the rebuild is going to be high so any savings caused by reducing passenger numbers through the station during it would be a real bonus and could be greater than the costs of the diversion.
- The Higgins Report seemed to make the WCML-Crossrail link much more of a certainty than it has been before. It would still need to be delivered quickly though, before the bulk of the station works, in order to make construction any easier though.
- One idea that I have had is that if some kind of agreement were made with LCR, HS1 Ltd and Eurostar it might just be possible to take some of the Eurostar platforms and use them for WCML-via-NLL diversions. This would require considerable operational changes for Eurostar and the security arrangements at St Pancras and would require physical changes to the railway infrastructure to double the NLL junction, add the temporary platform surfaces and replace the French KVB signalling with standard TPWS/AWS. Then there's the issue of limited paths, especially non-stop ones, along the NLL. If it were possible to do this though, it would reduce the number of LDHS long platforms at Euston by a non-inconsiderable number without diminishing the passenger experience by too great a measure. 9 or 11-car Pendolinos could join up with either a Super Voyager or a future mini-Pendolino at Watford Junction or some other location to provide a 400m long train to make full use of the 400m long platforms that would be available at St Pancras. WCML passengers would not be massively inconvenienced - indeed, many would see the change as an upgrade with the nicer station and facilities. St Pancras's six HS platforms were designed for the full International capacity of HS1 and that capacity is nowhere near going to be needed in the Euston rebuild timescale so I'm sure it will be possible somehow to reduce platform usage.
- Thinking about the NLL - if it were possible to four-track the NLL through Camden Road using the disused bridges and providing four platforms, it might also be possible to use the station as a replacement for Euston for more local services beyond a simple diversion of the Watford DC line. With a suitable route to Camden Town tube station or an efficient shuttle service to the Euston one when not closed for reconstruction, a lot of passengers wouldn't have an enormously more difficult journey than they have at the moment. The crowding at Camden Town tube station would need to be sorted properly first though before this could realistically be a good option and it does appear that the rebuilding would take too long for it to work.
- Passengers from Birmingham could be coaxed onto the Chiltern line to free up space on a more limited service into Euston. Some of the Voyagers or other diesel stock (maybe even HSTs displaced from the GWML/ECML) could be put into service on the line to make the Birmingham trains as long as they can physically be. Likewise, if it were possible to route some of the Milton Keynes passengers onto the Chiltern line via East-West it would reduce pressure on Euston even more. At this point it will probably now be the onward links at Marylebone that will limit capacity; if there were some way of keeping the NNML open and connected to the GWML while tunnelling underneath then routing some of the Birmingham trains back to Paddington might be within the realms of feasibility.
- EDIT: The IEPs will cut journey times on the ECML by enough that the ECML could start taking up some of the Glasgow passengers again. It wouldn't make the WCML service pointless but it could allow it to be reduced down to a mini-Pendolino so that it can split/join and reduce platform requirements at Euston even more.
There are likely some very glaring flaws in my ideas but they're just some thoughts which had been going through my mind when thinking about the rebuild. The cost of the rebuild is going to be high so any savings caused by reducing passenger numbers through the station during it would be a real bonus and could be greater than the costs of the diversion.
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