Commend Österreich Case Study Security and Communication Liefering Motorway Tunnel / Salzburg Tunnel Security Transport and InfrastructureCustomer ASFINAG (motorway/speedway financing and operation) Pr incipal Contr act or STRABAG Anlagentechnik (mechanical engineering and construction) T ype of the project Tunnel Intercom Project Details Indoor/Outdoor Emergency Call solution T echnical Specifications 11 × Intercom module SIP-ET 908A, installed into tunnel call stations T unnel Specifications Total length: 503 m Overall costs: approx. € 18 million Construction: Mid June – Late November 2016 The Challenge Project Details Recently refurbished to meet the latest environmental protection standards, the Liefering tunnel is located on the westbound A1 motorway between the “Salzbu

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