the.com/airways
The invisible highways planes drive on, complete with lanes, exits, and rush hour.
means Designated corridors of navigable airspace that aircraft follow, like roads sketched across the sky.
from A plain English mashup of air plus way, dating to early aviation when pilots needed routes nobody could see or pave.
Also anatomyMeans the breathing passages in your body too.
Numbered routesReal airways have names like V23 and J45.
Width mattersMost are about eight miles wide.