That is not to say that we don’t need all forms of transportation, be they small planes, bicyclists and foot messengers all doing their part.
See this story for one example of people doing what they can with what they have: “By air and by bike, civilian pilots and cyclists rehearse delivering aid after ‘The Big One.’”
If we could get everyone to do the same from where they live with what they have, we’d be much better prepared. For instance, it might be critical lifesaving medicines that get transported to those in need.