BUT having said all that I have to agree it seems perverse that we are leveling half of West London to in effect, put in an extra runway where no cost is bourne by a significant proportion of the people using it !
True to a degree if the 3rd runway will be publicly funded - but are you confident that's the plan? The government has to give the green light from a planning perspective, but the construction cost would be borne by HAHL and recovered through income generated by the additional business.
Airlines are charged passenger handing fees by HAHL for connecting traffic and pax in transit make a sizeable contribution to retail and catering revenues, a share of which goes to HAHL.