Hover a vehicle to inspect your route
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The lot is jammed. Some vehicles can get out — most are physically blocked by the ones in front. Read what each one carries, send it to the right destination, and watch the jam open up behind it. Some vehicles are running out of time. Getting those out is the job.
Traffic drives east and south. A car can only leave if its lane ahead is clear. Send one out and everything behind it rolls forward — which can open a lane you couldn't touch a second ago.
Nothing moves until you move. There is no timer. Look at the board as long as you like; new traffic arrives only when you answer.
A ringed vehicle carries a number: the moves it has left. Every answer you give — right or wrong, on any vehicle — counts against it. Dig it out in time and the shift moves on.
Run the number to zero and it stalls where it stands: it never moves again, and everything behind it is stuck there for the rest of the shift. Hover anything to see what your answer would do first.