Sequenced gates are slightly different than dual or interlocked gates. When two gate operators are connected as
sequenced gates, a faster “Traffic Control Gate” operator (i.e. barrier arm or crash wedge) and a slower “Security
Gate” operator (slide, swing, or vertical lift gate) operate in sequence to help prevent tailgating by unauthorized
vehicles. Both operators open (Security Gate first followed by the Traffic Control Gate) and allow a vehicle
through, but the faster moving Traffic Control Gate closes quickly once its reset/center loop and all obstruction
loops are cleared. Upon reaching its closed limit, the Traffic Control Gate signals the Security Gate to close.