Ah, the Operation Princess idea of running frequent short trains... what could possibly go wrong?
Its what we have now, its a little unfair to compare a flawed (not totally failed) expansion project, with maintaining the status quo
Still no answer to the question about how big a radius you are using for your population definition of eight million people in London (since you are only using small definitions for Manchester, Nottingham etc).
I cant see why any published population figures are relevant using the higher or lower, population figures are published on a local authority basis, for calculation government grants, for example the suburb I live in crosses three local authorities, only one section would be counted the other two are counted as outside, yet all would consider themselves to live in Coventry. This is about station catchment, which is not collected or published anywhere... as has already been stated Coventry has one of the largest long distance flows into London but has been cut out of the map for a much degraded service
However has having two or three fast trains an hour to London over the last decade or two stopped Coventry's decline?
On what basis has Coventry declined; huge parts of the city centre have been recently redeveloped, major companies moving headquarters in and expanding in Coventry, the car industry may have packed up and gone, and the colliery long shut, but these have been replaced by new industries, most notably distribution, and banking. To come out with such comments is quiet frankly the same distortions of the truth that started this thread off.
Taking away service frequency, and connectivity would hamper the progress made in redevelopment and inwards investment that would not have been made without good transport links including three fast trains to London per hour.
True there is a capacity problem on the WCML in the long term, is it best served by a vanity project that will be priced out reach to normal people? which is as more about keeping up with the Jones's than it is about meeting the long term transport needs of this country, which is not population centres hundreds of miles apart it is lots of closely economically integrated conurbations closer together than in most of the developed world?
In fact its so good and environmentally friendly that even the Green party oppose it.
There are so many lies, damn, lies, and misleading statistics being thrown around by two highly emotive sides of this argument, that is becomes so hard to see the wood through the trees.
Rail should be simply about getting people from the homes to where they have there jobs, families or leisure trips, as easily, affordably and hassle free as practically possible, the current HS2 solution ticks none of those boxes and costs a small fortune