Road Blocker As a barricade blocking the vehicle which enters a building by force, it rises and falls with hydraulic power. It is a cutting edge system of blocking the entry of vehicles, and can normally work after collision with a vehicle. Characteristics Roadblock can operate alone, and be used to prevent forcible intrusion at the gateway of vehicles by being installed with other devices, such as gates. When working, it takes 4secs for a blocking screen to work up to 659mm(Max Height), and having the noticeable paint and warning lights installed, the approaching vehicles can stop in time. When the blocking screen falls, as its height is the same as the road surface, it doesn't interrupt the flow of traffic. As an option, it is possible to coat the surface of blocking screen with the same materials as the road surface.