Parking
I agree expensive and anxiety inducing - hence people will hang around residential areas.
I'm not sure what pressure the runway extension will place on Long Stay parking as one of the car park makes way for the extended taxi-way, and can understand that the airport will need to ensure sufficient space for travellers.
Perhaps, though, the local authority as a condition of future planning approvals should insist that the airport (as a considerate neighbour) offer a reasonable amount of free parking time for drop-off. 15 /20 mins is typical in other countries (I noticed that Nice offered 30 mins 'Kiss and Fly' parking time - but life is different down there. Clearly passengers need a lingering good-bye before going back to their wives / husbands!!!).