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The NSW Government’s Road Safety body asked drivers on March 7, 2020 if they knew which order four vehicles were allowed to move if they all arrived at stop signs at the same time.

The question was: In the intersection, if each vehicle arrives at the same time what order from A to D do you think each person is permitted to go?

The answer: “C and D, A, B if all the vehicles arrived at the intersection at the same time,” the body said.

“Vehicle C and Vehicle D can proceed into the intersection first simultaneously, followed by Vehicle A and finally Vehicle B because:

“Vehicle C is turning left and can proceed without obstructing Vehicle A and D.

“Vehicle A must give way to Vehicle D as they’re approaching from the right.

“Vehicle B is turning right and must give way to oncoming vehicles going straight ahead; oncoming vehicles turning left; and any vehicle on the right.”