The gates are operated by underground operators. Vehicle access is achieved via radio fob or by entering a code on the intercom keypad. The intercom is wireless.
The gate has anti-crush strips along the lower edges on the internal and external face. If the edges touch an obstruction when moving, the gates will stop and reverse direction
There is also a safety beam projecting across the external face of the gates - if this is obstructed the gates will not close.