Airports truly wanting passengers to use public transport is like turkeys voting for Christmas. What is one of the biggest revenue earners for airports in the UK these days? I'll give you a clue, it isn't a bus service from a station. They all say they want better access for people using public transport, but do they really mean it? Spending on public transport infrastructure at and around airports is low down the priority list for the airports, mainly done only when the roads get really clogged up (LTN) or to meet air quality guidelines (LHR 3rd runway)