Earlier quoted context omitted.
You can always come up with some pretext to justify things by ignoring the other side of the equation. How many lives do the man hours spent commuting, or toiling away to afford higher rents waste? IDK how the math pencils out, but an attempt ought to be made before drawing conclusions.
None? Nobody puts airports inside city centers and metro areas don’t just have dense urban housing. The common solution in many land strapped cities is for airports to rout aircraft over water often by building airports on reclaimed land. What generally gets areas in trouble is locations that used to be a good get worse as aircraft get larger and the surroundings get built up. The solution is to send larger airplanes…
Taipei Songshan, Boston Logan and the old Hong Kong Kai Tak to name a few.