Overhead lane-use signals control the use of lanes on bridges, in tunnels and in places where traffic may change directions. Which signal indicates that you may use the lane below it safely?

Study for the Just Drive Test. Boost your driving knowledge with multiple choice questions and detailed explanations. Prepare for success!

Lane-use signals tell you whether a lane is available or not. A steady green arrow pointing down specifically means that the lane beneath it is open and you may use it safely. It signals permission to drive in that lane now. The other signals indicate closures or warnings: a red signal (steady or flashing) means the lane is closed and you must not use it, while a flashing yellow signal warns that the lane is about to close and you should be prepared to merge. So the steady green arrow pointing down is the only signal that clearly grants safe use of the lane below.