Yeah except in Britain apparently because the Tories buggered up our rail system so badly in the 90's we won't have a decent other option, even by then.
Furthermore, normally people banning cars in cities are in favour of improve internal city travel via local buses, metros and bicycling. It's not really about the kind of services that National Rail provide.
Lets face it like a lot of things Britain sits half-way between the US and Europe. We want European rail travel but we aren't prepared to pay the taxes to support it.
http://www.bbc.co.uk/news/uk-politics-12879566
"It is right that the EU sets high-level targets for
carbon reduction, however it is not right for them to
get involved in how this is delivered in individual
cities"