Which is the government's way of applying austerity measures to the railway given that it dare not cut back things like electrification, Northern Hub, etc. And even these have been subjected to a review (Hendy).
The railway hasn't had "austerity", not in the way that most other public sector funding has experienced austerity.
there must be times when commuter trains are stood around at weekend that could be used on leisure based services at weekends. The complicated structure of the industry stops this. Under one bigger company, stock could be utilised more efficiently. Now you could have TOC A train, full and standing, passing sidings full of idle trains belonging to TOC B.
This assumes that the staff of TOC A are trained on the trains of TOC B, while the staff of TOC B will almost certainly not be trained on the routes of TOC A.
It would need some joined up thinking and cooperation. That's not the way of our railway world today.
Easy to bemoan the lack of "joined up thinking", but what's the alternative?
Take the MML as an example. You want to give EMT the flexibility of using XC Voyagers and XC the flexibility of using EMT Meridians? So you need to ensure that Voyagers are cleared to St Pancras and Meridians are cleared to Edinburgh/ Plymouth etc.
That's just a one-off expense, but we may need to take some stock out of service for a few days to ensure that it doesn't hit platforms/ bridges etc (regardless of how similar it may appear to existing stock cleared for that line).
Then you have to ensure that a certain percentage of EMT and XC staff (drivers and guards) spend sufficient time training on the "foreign" stock each year. If a driver costs the company around a thousand pounds a week (including pension contributions and Employer NI conts) then how many driver days do you want to spend to ensure traction knowledge on "foreign" units? Then there's your Guard costs...
Are the various depots going to be okay? e.g. fuelling at Craigentinny for Meridians?
(I've used XC and EMT as an example, since they both operate self powered 125mph units, to avoid arguments about the point of training long distance TOCs on "commuter" units that would be too slow to operate long distance services, or the fact that "commuter" units spare at the weekend are electric whilst "leisure based services" are often to unelectrified places.
With new franchises usually equals new investment but it leads to a feast tyo famine approach.
Look at Anglia. There will be new trains and new services by 2020 / 2021 but after that I doubt there will be (much) new investment as there isn't a lot time to get a return on it.
There won't be much need for new investment once they've got a stock of 100% brand new trains though, will there?
And yet, in 1990, when the wires came down on the ECML at Peterborough, we were sent down the MML instead.
Yes, passenger numbers were lower, yes station usage was lower and lines were less intensively used, but there was still operational flexibility then that could not be replicated now.
It's perhaps a question for others to decide as to whether it's the operating structure or the infrastructure that would prevent it from happening in future, and whether new but incompatible/captive investment is the best route to long term network resilience.
In those days I think the MML had a service every ninety minutes to Nottingham and one every ninety minutes to Sheffield - I could be wrong - I can't remember the "Thameslink" frequencies - certainly a far cry from the days of thirteen/ hour on the line to St Albans or five/ hour as far as Market Harborough or four/ hour as far as East Midlands Parkway.
Plus, in those days, the off peak ECML service would have been about three trains an hour as far as Doncaster (one to Leeds, one to Newcastle, one to Edinburgh)? Now you can have six or seven as far as Doncaster (including Open Access).
There are still ECML diversions nowadays of course - though it obviously tends to be via Lincoln instead - plus Carlisle and occasionally the Durham Coast.
There's then the question of how much you spend and how much spare capacity for diversionary capacity (when we could do with focussing investment on where it will be a benefit fifty two weeks a year).