In a post franchises world there ought to be scope for mixing and matching destinations between East Anglia and cross country destinations, so Ipswich Stansted Cambridge and Norwich all had direct services to all of stations to Birmingham and Liverpool, which would provide a hugely increased number of direct station pairs
Given that we have one fixed path per hour from Peterborough to Birmingham and one fixed path per hour from Peterborough to Nottingham (and beyond), but demand east of Peterborough is split between Norwich, Ipswich and Stansted via Cambridge, how do you run services?
Would you end up with two Peterborough to Norwich trains within half an hour of each other (i.e. one from Nottingham and one from Birmingham) and then nothing from Peterborough to Norwich for a couple of hours? Same with Cambridge having no trains to Peterborough for a couple of hours, then two within half an hour of each other?
How would this leave the Norwich - Cambridge service? Would that also be "two trains within half an hour of each other then a long gap"?
I say this because, if you want to give everywhere a link to everywhere, you can't have an hourly train from Peterborough to both Nottingham/ Birmingham and also hourly trains from Peterborough to Norwich/ Cambridge
Then you've got the problem that the journey times don't quite match up - Ely to Stansted is ten minutes faster than Ely to Norwich
So any Stansted service would require a layover of twenty minutes longer than the layover at Norwich, if the plan was that they fitted into the same clock face path west of Ely (e.g. at the moment the hourly Nottingham service has twenty minutes to lay over at Norwich, so any Nottingham - Stansted service would occupy one of the Airport's platforms for around forty minutes so that it fitted into the same hourly path west of Ely)
It seems the answer is "yes - because through Cross-Country routes are interesting from an enthusiasts perspective" and "no, because it's not practical"
Yup, same as usual - we keep bumping up against the problems of trying to link various far flung places whilst also providing simple reliable services for the larger number of people who do shorter distance journeys
yes more expensive, but revenue would be enhanced as direct journeys more attractive than changing
How do you know that revenue would go up by much though?
There's a lot of costs that would go up, in terms of staffing/ maintenance/ route knowledge etc
There is after all, other than historic accident, no reason why Stansted and Cambridge should have services to Birmingham but not Notts/Sheffield/Manchester/Liverpool, and Norwich the reverse, while Ipswich and Bury (together have almost as much footfall as Norwich) dont have any services beyond Peterborough at all
True, but there are lots of examples of this on the railway - there's no particular reason why TPE's hourly service from Middlesbrough goes to Manchester Airport rather than Liverpool, there's no particular reason why Barry Island's trains go through to Merthyr rather than the many other northern termini on the "Valley Lines" network, there's no particular reason why Stratford's cross-Birmingham service terminates at Kidderminster rather than extending to Worcester... our busy railway means simple hourly services are a better use of capacity than trying to link everywhere with everywhere
I'm sure that all of those service patterns I've mentioned have some examples where people would want a through train (e.g. the finite number of paths means there's no service from Hull to beyond Manchester), but it's Opportunity Cost
Why should East Anglia continue to suffer from poor connections? Throwing your passengers out halfway to their actual destination just sounds like a terrible idea.
How many people are wanting to travel from the three routes east of Ely to the various places west of Ely though?
It's a bit like the line west of Cardiff - I'm sure there are some people who'd like to do through journeys like Milford Haven to Birmingham or Pembroke to Bristol, but those through trains no longer exist