Case Study: Installation of FireBarrier 135 in the Bjørvika TunnelThe challenge The Norwegian Public Roads Administration (NPRA) decided to build the Bjørvika tunnel in central Oslo, in order to reduce the volume of traffic throughout an extensive waterfront area and in the process link two existing tunnels, Festning and Ekerberg. The Bjørvika tunnel was designed to accommodate 100,000 vehicles daily along a total length of 6km. Following tu

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