The Model RSB 71 High-Security Road Blocker Barrier is designed and manufactured by Automatic Systems. The Model RSB 71 was specially designed for High-Security vehicle access to critical areas, such as: governmental buildings, embassies, police stations, police barracks, military storage facilities, or any location which might be targeted by terrorists. A recommended configuration would include a BL29 heavy-duty barrier gate, which provides additional visual indicators for safety and accident prevention.