Straddling bus

From Red china comes this idea for easing traffic congestion: A bus that straddles the entire traffic lane so that cars can drive underneath it.

This is such a simpler plan than going through all the expense and disruption of building, for example, an elevated rail system. True, the entire street has to be redesigned and rebuilt, special stations must be erected, and as for those cars driving under it, they'll hardly notice except for this:

About the ultrasonic waves put forth from the end of the bus, that is to keep those high cars or trucks away from entering the tunnel. Using laser ray to scan, cars get too close to the passage will activate the alarm on the bus end. Inside the bus, there are turning lights that indicate a the bus is intending to make a turn to warn the cars inside. Also radar scanning system is embedded on the walls to warn cars from getting too close to the bus wheels.

Very simple–assuming that motorists have passed their intensive driving-under-the-bus training course (No Obama jokes, please). As to how this huge slab of metal is supposed to turn corners, don't ask because it makes the designers all cross.