Bold Seagull
strong and stable with me, or...
As a starter, i'd go, Brighton Station to the Clock Tower to the bottom of West St. Plus the entirety of the area around the Lanes and North Laine.
Think it would be transformative. The areas that really work in Brighton are already pedestrianised. Clock Tower Piazza would be amazing with a tree lined avenue from the station.
City lacks real progressives though who just cannot see past their car keys.