In the long term we have to move away from people dropping off at transport hubs by car to public transport to the hub operating H24. Car drop off is so inefficient. We have a similar problem in an industry I am involved in railways. At the moment drop off by car is increasing walking/cycling to stations is decreasing!
I accept that walking/cycling to airports doesn't work but transport to a local public transport hub could dilute car passenger drop off.
Des the airport plan to offer drop off at the new raillink rather than into the airport when it is built?