[Tagging] Draft proposal for Key:aerodrome

[Joseph Eisenberg]

Christoph's comment is similar to what Simon Poole said on
Talk:Proposed_features/Key:aerodrome

So the alternative would be to use several new property keys instead
of a single key, eg:

international_flights=yes/no (presence of international passenger flights)
commercial_flights=yes/no (presence and nature of regular passenger
flight service)
access=? (openness to public from the air/access restrictions on the ground)
fuel= etc. (presence of services for airplanes)
surface=* (surface and length of the runway) - length already shown

But it's quite a bit more work to map an airstrip as:
aeroway=aerodrome + name= + access=private + fuel=no + hangar=no +
commercial_flights=no + general_aviation=no + radio=no + ? etc....

Versus just mapping aeroway=aerodrome + aerodrome=airstrip + name

I suspect that mappers will continue using aeroway=airstrip in most
cases, instead of setting a large number of property keys to "key=no"

On the other end of the spectrum, international_flights= or
commercial_flights= would not be too much trouble, but
international_flights=yes/ would be a little harder to verify and keep
up-to-date than whether the aerodrome has customs and immigration
(=international), which can't change as quickly.