The Safety Features in Automatic Boom Barrier
Most automatic boom barriers have incorporated inductive loops for the safety of the barrier operation. The control system that keeps a vehicle driving in a safe manner is connected to ground inductive loops that are located in the road surface itself. The use of the inductive loops means that the barrier arm does not suddenly lower when a vehicle enters the passage area, but only when it is within close proximity to the passage area. If the arm lowers when your vehicle is passing under the barrier arm, it will automatically pop back up again.
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Mihika Nayak commented
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