Exactly. The answer isn't public transport, but adequate public transport. Of course if we ban cars we can't expect everyone to use a bike instead, or to rely

Exactly. The answer isn't public transport, but adequate public transport. Of course if we ban cars we can't expect everyone to use a bike instead, or to rely on current public transport network. Train, tramway, metro, bus (, something new?) all need to be vastly reinforced (something between 10x and 100x maybe?) but there's room for that once cars are out of the picture (both from roads and parking space). Cars are convenient, but not efficient at scale (and too dangerous, for now at least). We need another solution, and I think it has to be radical to really work. But then, banning or greatly reducing car use in cities will be a tough one..