I had a quick look yesterday at the new drop off area. There are no barriers forcing cars to move on as before, which happened when the old barriers worked. Now cars are once again parked up with no drivers also drivers sitting there indefinitely while they wait for passengers. It was like old times. No congestion though, as it was a quite time in the day.
I can see problems during busy periods as all traffic follows the same route whether they are heading for the short term car park or the drop off area. Before, despite congestion the old roundabout used to filter cars in two directions depending whether they were heading for the car park or the drop off area.