There can be few places where clear and reliable communications are more critical than a tunnel. Connecting the city of Liverpool with the Wirral under the River Mersey, the Mersey Tunnel complex had an aging and faulty emergency public address system that needed replacing to keep users in the road tunnels safe.
PAS Sound Engineering won the tender to deliver the project, quoting Praesensa by Bosch as the appropriate solution due to the locations of the racks and the fibre connectivity in the tunnels.
