Will traffic be routed through the current drop off zone?
No the airport authority have just modified the entrance to the short-term car park by providing a third barrier. So it's 3 barriers in and 2 barriers out. Luton's short-term car park is a total disgrace and looks more like a bombsite than a car park at a major airport. If the potholes don't get you then the boulders and stones will.
I was wondering why fencing was being installed on the kerb edges on the roundabout and on all the central area roads. Now I know, it is to stop passengers getting to the pavements if they get out of a car on the road.