Abstract: There is provided a barrier system for stopping land-based and water-based vehicles from entering predetermined areas. The barrier system, which may protect relatively wide spans, is capable of stopping relatively high mass vehicles traveling at relatively high speeds. The barrier system comprises an anchoring system, vertical supports, an energy absorption unit, a gliding bar, and a net system. The gliding bar is selectively moveable relative to the energy absorption unit and may selectively define an unfixed mode wherein the gliding bar is moveable relative to the energy absorption unit and a fixed mode wherein the gliding bar is fixed relative to the energy absorption unit. The net system is connected to the gliding bar such that converting the gliding bar from the unfixed mode to the fixed mode raises the net system to prevent passage of vehicles.

Abstract: A vehicle barrier system that stops unwanted vehicle intrusion, controls vehicle access, and protects assets and critical infrastructure. The vehicle barrier system, which can span up to 250 feet without requiring fixed intermediate supports, will stop a 15,000 lb vehicle traveling at impact speed of 50 mph. The barrier net is attached to vertical steel end supports anchored in concrete, and include energy absorbers, pivoting connections, and force equalization bars. The barrier net can remain in the “up” or “down” position, and can be raised or lowered using a winch powered by common 12 volt battery with solar power recharge. The barrier net and system components are modular, and can be easily installed or removed.