3 ms·

There must be a correlation with population density

• Demiurge 8y ago
  It doesn't look like it. You can have different size airports serving vastly different volumes. It looks like the spacial distance is first factor, and then municipal boundaries. The boundaries are historical and can be based on population.
  • jschulenklopper 8y ago
    You misread the intention of the parent's comment. It's not that population _is_ taken into account (your interpretation), but that is _should be_ taken into account.
    • Demiurge 8y ago
      Hmm, could be, but how can you definitively determine that? :)