The fact is it would reduce the scope of people to live there. Even if you ignore all the points I have bought up it still only allows for people with this very standardized, average (modal) lifestyle, who just operate within this narrow band go to a middling work for 8hr a day, go to the cinema and walk the dogs on w/e. It's just not flexable enough, this really would just result in a narrowed band of people. People need to travel, they like to go visit relatives e.t.c
I fail to see how this 8hr a day thing works. If you work longer or shorter hours, you can still commute without driving. Quite a few people do this in London already. It also doesn't lack flexibility either. Cars are perfectly accessible on the edge of the suburb. This isn't a gated community that you can't leave ever. If you want to go to visit some relatives you either walk/cycle the relatively short distance to the parking area and drive from there. On top of that, you never have to get stressed because your neighbours are throwing a party and you can't get your car out because you're boxed in. I'm not sure how you picture Vauban but it is just a small suburb on the edge of a medium sized city, not some vast, car free connurbation.
I fail to see how this 8hr a day thing works. If you work longer or shorter hours, you can still commute without driving. Quite a few people do this in London already. It also doesn't lack flexibility either. Cars are perfectly accessible on the edge of the suburb. This isn't a gated community that you can't leave ever. If you want to go to visit some relatives you either walk/cycle the relatively short distance to the parking area and drive from there. On top of that, you never have to get stressed because your neighbours are throwing a party and you can't get your car out because you're boxed in. I'm not sure how you picture Vauban but it is just a small suburb on the edge of a medium sized city, not some vast, car free connurbation.