Geneva Airport must implement the necessary security measures for its new terminal while maintaining its state-of-the-art, open architecture. Among the various security measures, counter-flow control is essential. This ensures that no passenger turns back during the disembarkation process. Given the architecture of the new terminal, conventional solutions based on metal structures are not suitable. Counter-flow control must be achieved through a system that does not require additional metal structures and can be perfectly integrated into the architecture of the new wing. Finally, flexible usage according to operational needs must be possible.