The STRIDE system is designed to detect unauthorised entry of vehicles into the runway area when the adjacent stopbar is commanded to ‘on’ status. This is achieved by two sets of Microwave Detection Barriers (MDB) placed after the stopbar or hold position at an appropriate distance. The MDB, consists of a Transmitter and Receiver that radiates an amplitude modulated signal that travels to the receiver where it is detected and processed.
While the stopbar is selected ‘on’ and should the beam between the two MDB positions be broken, a ‘Runway Incursion’ alarm within the ATC is immediately activated. The system can indicate in which direction the vehicle is moving and automatically switch other services to a fail ‘safe’ condition if not already selected.