A handful of years back the NHTSA announced that all new cars would have to have a vehicle to vehicle 5.7-5.9 GHz system for announcing vehicle position, velocity, and cryptographically signed ID. Luckily the dates just came and went and the manufacturers didn't do it. The NHTSA folded and eventually the FCC gave that ~hundreds MHz of 5 GHz band back to wifi.
Hopefully that's what will happen here. The NTSB only recommends things to the NHTSA. So this proposal hasn't even gotten as far as the above example.
Hopefully that's what will happen here. The NTSB only recommends things to the NHTSA. So this proposal hasn't even gotten as far as the above example.