I would think the latest temporary drop off zone will be open by the end of June. Drivers that have got used to getting in the left hand lane for the drop off zone will soon have to get into the right hand lane. So who looks at a road signs when you know where you are going? Those picking the left hand lane will end up on the service road.
For those with even short memories when the existing drop off zone opened it was expected to fix the chronic traffic congestion but it actually made the situation worse. In the first few days the traffic queue almost touched the M1 and set a new record. Lets just say the airport management where somewhat shocked at what was happening. This was in part due to a temporary pedestrian crossing from the short term car park and the infamous pedestrian crossing in the drop off area that still causes chaos today.
The new zone has no pedestrian crossings but 5 cul-de-sacs with half the kerbside in the first bay for disabled drop off. Again all traffic wishing to enter any of the 5 cul-de-sacs will have to filter into a single lane on the ring road. No doubt for the first few days a man will be directing traffic who will cause more queues as drivers stop to ask directions thus bringing the airport to a standstill.
Touch of deja vu for the airport in that every car leaving a cul-de-sac will be held up by a car queuing to enter bays 2,3,4 or 5. It will no doubt have the feel of the traffic layout from a few years back where they even tried traffic lights on the roundabout in the CTA before the traffic flow was reversed. Seems someone has a short memory as I link once again it will all end in tears.