Thought of the Day - TOC For Traffic Management

I must have TOC on the brain after reading the two books because while driving on the motorway today i wondered how you could apply TOC to traffic management.

How could you apply Drum Buffer Rope to cars? Could you convince people who like to speed and people who like to drive slowly that really they should all go at the same speed (drum) so that everyone arrives quicker. How could you keep the cars the same distance apart (buffer) and stop the whole queue of cars being disrupted if one car stops or slows down (rope)... More to the point what is the constraint; is it the slowest driver? or is it the speed limit?

Probably a pipe dream until all the cars are connected in a mesh network and can synchronize with each other though.