It's what I mentioned in my earlier post ..is this to do with the proposed development IKEA homes etc..are they really expecting people to do what u propose..if so it's just going to create problems elsewhere...they've probably never tried to get across the Norfolk Bridge and through Shoreham...
Re that last bit about the Lancing Manor roundabout and traffic coming from Brighton not doing u turns..so u come from say Brighton and pop into ikea and want to go back ..hmmmm
With all the extra traffic that's going to be generated I see nothing that will make one iota of a difference