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Gridlock is a unique traffic simulation car game online in which you become a traffic controller whose mission is to control many lights at intersections. Your main objective here is to make sure that all the traffic won't crash into each other and try not to cause any traffic jams. Also, you have to ensure that the cars won't have to wait too long at the intersections. Try your hardest to control the lights skillfully for earning a high score. Give it a shot now!