I picked up this picture on Flickr. The far tracks are the lines out of Marylebone. They are not electrified and there are no plans for electrification on this route, which runs only as far as Aylesbury.
At one time it was part of the Great Central and trains ran to Rugby, Leicester, Nottingham, Sheffield and Manchester. The route beyond Aylesbury is largely intact and could be reinstated at relatively little cost as a conventional railway to provide the additional capacity that HS2 advocates insist can be provided only by constructing a high speed line. They assure everyone that it would cost just a teeny-weeny bit more. That sounds implausible.
I wrote to my MP on two entirely separate issues recently. The first was to do with the replacement for the Inter City 125 train, which at £2.6 million per vehicle, is twice as expensive as it ought to be. The second concerned the benefits of a switch from business rate and Council Tax to a tax based on site values. In both cases, the replies were full of spurious, unsubstantiated assertions and completely flawed arguments. This is typical. You will not get an iota of sense from the government on any area of public policy at all - finance, economics, trade and employment, agriculture, housing, health, transport, energy. All junk. If you write to your MP you will invariably receive answers that are an insult to your intelligence, no matter what subject you are writing about. Of course they cannot understand statistics. They are innumerate. Whitehall is staffed with idiots with a high IQ. Look at their IT projects. And mind your purse, they will have that too.
Kommentarer
This then means that it is not able to be electrified (overhead) due to LU rules, so unless a new line was to be built to seperate the two routes (which isn't going to be cheap) the only other way to electrify the line would be to remove the LU services from the line (which isn't going to go down well).
Either way it is not going to be a case of just extneding the existing line.
Likewise, although repoening the Grand Central (GC) line would improve capacity over the Southern section, it could prove to be expensive to provide more capacity in the North.
It is however possible that the GC line will be reinstated bit by bit over time, as the East West will extent the existing Aylesbury services to run north to Milton Keynes.