I picked them because they are large open areas in the right(ish) places. There are obviously better altrnatives than using green land butthe principle is the same - provide cheap car parks with fast, regular buses into the city centre and many people, me included, would be likely to use them...
The Simple(ish) answer if you want cars to stay out of the town is to set up park and rides so you convert :
Roedean pitch and putt
The Green up the middle of the Avenue
Withdean Park
some of Hove Park
into car parks, charge £3 a day and run a non-stop free bus service to the town centre.
Whilst the idea of a car-free city centre is attractive for a lot of people, it's not something that can be achieved by unilaterally declaring war on cars and their drivers as the Greens seem to have done (bus lanes, extortionate parking charges, 20mph speed limits to name three off the top of...