[Gwypaas]

No point comparing aircraft taxing to cars. The taxiway is a very well defined environment with the tower controlling all movements.

The only reason it isn't automated is because there's no monetary gain in doing so, the people you are paying is still sitting around for the same amount of time.

[FireBeyond]

And the worst taxiways are still better maintained|lit|painted than even most of the best roads.