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  Innovative traffic barrier for road and city tunnels

  This paper presents a project of an innovative, safe and effective traffic closure system for road and city tunnels. This system, based on a net of flexible silicon components and carbon strings which forms together a “roller shutter”, should solve a problematic closure of a tunnel during emergency and maintenance situations. Every traffic lane has its own independently operated barrier. The net has predefined “crack points”, which are activated in the case of high-energy impacts (i.e. collisions of vehicles with the barrier) and should protect drivers and vehicles. A classical traffic closure solution in the Czech Republic is a combination of a traffic-light signaling, variable traffic signs and mechanical traffic barriers. This closure system is often very ineffective.

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