there's been no mention of electrifying the Chiltern Line
Er. yes there has. I put the following right at the start of the Sparks Effect thread back in June. Long-term obviously, because of the reasonable life-expectancy of Chiltern's fleet, but if you've got wires all the way from Banbury to Birmingham from an
XC▸ wiring scheme, then it makes sense once you start to need to replace 165s and early 168s.
"Suggested possible long-term spin-offs, as a result of some of the above work making them more cost-effective, are Bristol-Westbury-Salisbury and Swindon-Gloucester-Chepstow-Newport, also the Chiltern Line."
There should be a continual building programme of 172s that needs to be running until all non plug door/ non air con units / buses have been sent to the scrap yard.
But as several of us have tried to tell you before, no-one is going to pay for loads of brand-new diesels, with a 30-year life, so long as the government is conducting an electrification review which would put many of them out of work within a decade.
And if Chiltern want to get a headline 90-minute journey time it can probably be done with 100mph stock. Does anyone remember the old
BR▸ InterCity 90-minute (or was it 92 minutes?) sign on the mail depot at Curzon Street which was promoting the time of a handful of trains on the Birmingham-Euston route, which were limited to 100mph.
You just ditch several intermediate stops and provide some loops to allow overtaking of slower services along the way. There's room for that between Leamington and Birmingham where quad track was removed and at several stations further south. Whether it's worth the expenditure is another matter.
As I understand it from a very reliable source, Chiltern have to propose mid life franchise enhancements to get their 20 years.
Their proposals seem to be the Bicester curve and Oxford Marylebone service.
Plus as I said above the re-engining and gearboxes of the 165 and 168 (psuedo 170s) to be similar to the 172s giving the wh0le fleet 100 mph capability. What I forgot to mention which willc picked up on was the provision of high spped bi directional lines at sevaral points between Marylebone and Anyho to allow overtaking, plus increased line speeds up 100 mph over much of the route. With the souped up stock, these overtaking loops and increases line speeds Chiltern think 90 minutes to Moor street is feasable on a regular basis.
However one of the problems is if Chiltern get these proposals approved and implemented it puts the electrification of the line at a much lower priority as it will have virtually all new or re-engined stock. Thus the chances of a cascade from Chiltern is unliikely much before the franchise expires in 2020.
The only hope for
FGW▸ is rapid elctrification in the North West, West of Manchester to eliminate diesel working to Blackpool, Wigan and Liverpool from the East. Thus the trans Pennine need to follow with extensive connections to the ECM. This would release a lot of units if it were done so servies could be all eletric.
This might mean some service becoming loco hauled with engine changes where the wires run out. Loco hauled is also the obvious solution for
IC▸ traffic from Cornwall to london and Birmingham.
As I have pointed out before a set of loco hauled coaches and two locos one diesel and electric is cheaper than the
IEP▸ for the same number of seats.