as part of their expansion plans LGW are also calling for improved train services for pax and staff
I'm sure they are, and very commendable too. Of course that doesn't extend to actually contributing to the cost (à la BAA/Airtrack).
But are you seriously suggesting that an appreciable part of the demand will be pax arriving at LHR and continuing their journey from Gatwick ?
I'm losing track here - have we stopped at Heathwickholt, or have we already progressed to Heathwickholtsted ?
In answer to WHBM's question
Can anyone suggest ANY metropolitan area which has made a success of connections between different airports ?
I certainly can't think of any examples where that's been done. Hopefully UK plc won't have to spend millions to find out why not.