Useful for a PRT system with autonomous self-driving cabs, this single lane overtake system has its car wheels on legs on the side looking somewhat like a spider . When driving the car is on the road. To overtake it elevated and legs opened so overtaking above car. To stop elevated to third level and bridge extended from car lets you down. Turning off lane is coordinated with the other cars or can be achieved by "sidestepping". There's an option for "formal stops" by having an elevated "rail" actually an elevated road on each side. All cars drive onto it and stopping cars pull inwards the legs and drop to floor level.
-- pashute, Sep 27 2019

I think this is halfbaked, pashutie. On a side note, I saw a vanity license plate yesterday while riding my trusty bike, Millicent, and it read "Obstuse". Love it. Love, love, love it.
-- blissmiss, Sep 27 2019


The idea is pretty much Baked ... particularly in Whacky Races (q.v.)
-- 8th of 7, Sep 27 2019


Poor communication is not a clever puzzle.
-- Voice, Sep 28 2019



random, halfbakery