Yes, that's the salient point. It's not enough banning cars from the city centre is some radical step that no-one has ever done, there are countless examples of cities and towns that have done this.
The residents of all the places in the US, Netherlands, Germany, Spain etc that have gone down...
I don't know the answer to the questions you posed - they're all interesting points that need to be answered.
But, on this, there's some remarkable unanimity between the parties when it comes to transport policies - look at the Lewes Rd bus/cycle lane. First proposed by the Tories, it was...
The other problem with Sunday is that shops are only open for a limited time. You're not going to get a boost to retailers if they have to shut shop mid-afternoon
You also need to take public transport into account. It's no use having it on Sundays if the rail network is closed and we have a limited bus service. The whole point of making areas car-free is to move people to public transport - we'd need more buses, not fewer.
I think that will be a bit of a clincher when it comes to making the centre of Brighton car-free. With reductions in government contribution, business rates will become more important so the council will want to see a boost in turnover from retail units. Banning cars will be a big help in doing...