This is an interesting comment. As a Londoner (have lived both centrally and in the suburbs) I think you're right that it's one or the other. If you design fo

This is an interesting comment. As a Londoner (have lived both centrally and in the suburbs) I think you're right that it's one or the other. If you design for cars (e.g. M25, UK motorway network and roads, towns like Swindon and MK) then cars are the uncontested king. In an area like London, it almost becomes an emergent phenomenon. The suburbs have car use because they're not very dense and it still beats sporadic bus routes. In the centre there's just no space. Forget parking, Uber might be slower than the tube in a no-congestion scenario simply due to traffic lights and giving way.