As the subject of the arrangement at the front of T1/T2 has come up now...
Why don't BHX level off the old drop-off service road to be the same level/surface material as the adjacent pedestrian areas? It's permanently blocked off from any vehicle (emergency or otherwise) so it seems pointless to maintain this 'ghost' service road. Would be a decent plan turning a 'everyone inconvenienced/charged extra for so called airport security' into a 'increased pedestrian area/facility infront of terminal buildings'.