Inventors:
Robert M. Rogers - New York NY, US
Alissa Bucher - New York NY, US
Graeme Waitzkin - New York NY, US
Jonathan J. Marvel - New York NY, US
Richard Ramsey - New York NY, US
Assignee:
Rock Twelve Security Architecture - New York NY
International Classification:
E01F 13/04, E01F 15/14
US Classification:
404 6, 404 9, 104 35, 104 44
Abstract:
A barrier system for use with a trafficable surface that penetrates a boundary to control access by vehicles and to permit uncontrolled access by pedestrians. The system includes a turntable providing a surface that is rotatable generally in the plane of the trafficable surface. Impact elements are arranged along the surface in a pattern having a spacing configured to permit passage by pedestrians and to prevent passage of vehicles when the turntable is in a first position and to permit passage of vehicles when the turntable is rotated to a second position. The system controls vehicle traffic across the boundary by moving the turntable between the first position and the second position.