[pastword]

That might be the intention, but it creates a hurdle to using the lane AND create another racket to police people for. HOV lanes cause traffic with a "QoS" capping roadway bandwidth while creating a channel for multiple drivers.

If you want to incentivize efficient highway use, deny it to all but multiple humans over the age of 0 days (no pun intended).

And then beyond that, rip up highways and replace them with train services.