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> Also I wish that road vehicles had radios so drivers and riders could communicate intention like we do when flying

NO! Dear god no! Most people suck at communicating and could you imagine to road rage? Even though as a pilot you aren't supposed to chit chat on the radio I'm positive you've heard it.

Also you couldn't realistically set up something like ATC so you could have flight following. Not only would tracking that many vehicles be extremely difficult, but setting up all the transponders and receivers would be near impossible. You may notice you have a hard time talking to ATC below 1kft AGL. Plus everyone is in such close proximity at all times what are they going to do? "November 1234 Whisky, you have a Chevy incoming from your 6 oh clock passing on the left. Stay course." Or (in general channel) "Traffic at 6th and main, there is a cyclist approaching from the East on 6th, please use caution" and everyone that isn't at 6th and main tunes out, learning to tune things out.

Flight works because even at a busy airport the communication is still relatively small.




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