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News » International » Switzerland awards A2 tunnel refurb contract » published 18 Aug 2016

Switzerland awards A2 tunnel refurb contract

Detailed engineering is set to start for upgrades to two major Swiss tunnels.

The Swiss Federal Roads Office has appointed Pöyry to carry out detailed engineering for the planned scheme to upgrading the operational and safety equipment in the two tunnels on the A2 motorway. Pöyry has already been working on the structural measures and ventilation systems in the tunnels.

The A2 forms the main north-south motorway in Switzerland, connecting Basel with Chiasso. The Schänzli and Hagnau tunnels have been in operation for four decades, and are now being completely refurbished to meet modern standards.

Work on the tunnels, which are used by approximately 59,000 vehicles every day, will be carried out whilst the tunnels remain open. "This means that highly detailed replacement and migration planning is vital" said Pöyry project manager Christian Eugster. "In order to ensure safe uninterrupted use for road users, the old equipment must be kept running while the new equipment is constructed, tested, and finally activated."

The order includes the technical refurbishment of the energy supply system, lighting, cabling and monitoring systems, signalling, communication and control technology, and tunnel ventilation management system for each of the tunnels. In addition, the project will install new equipment in the control centre above the Hagnau tunnel. Pöyry will be responsible for the tendering process, implementing planning, construction management and commissioning the equipment.



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This article was published on 18 Aug 2016 (last updated on 18 Aug 2016).

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