Incursion Collision Avoidance System (ICAS) from Pavement Performance Products is designed to prevent vehicle runway incursions. For all types of vehicles that operate on an airport. Consists of a transmitter and receiver. The transmitter is mounted on or near a mandatory hold bar, the receiver is mounted inside the vehicle. If the signal from the transmitter is interrupted, the receiver in the vehicle will inform the driver he is about to enter the runway critical area. ICAS gives the driver instructions on what actions to take to avoid a possible runway incursion. Once the vehicle is clear of the runway critical area, the unit resets itself; www.pavementperformance.com.