RAMS Technology for Railway Engineering in the Gotthard and Ceneri Base Tunnels

The base tunnels on the new rail links passing through the Alps (NRLA) are planned to last for more than one hundred years. High requirements were posed regarding permissible risks and fault frequency so that the railway engineering equipment functions as safely and reliably as possible. The fulfilment of these requirements must be documented by the contractor by means of secured predictions. RAMS technology forms the basis for this in keeping with CENELEC Standard 50126, which has been applied in its entirety for the first time for infrastructure projects of this magnitude.

1 Background

Thanks to the new rail routes crossing the Alps a fast and efficient rail link is being created for transport traffic in a north-south direction. The NRLA Gotthard axis in addition to the new Gotthard-South rail route primarily constitutes the Gotthard Base Tunnel (GBT) and the Ceneri Base Tunnel (CBT) (Fig. 1). The 57 km long GBT was ceremoniously opened on June 1, 2016; the 15 km long CBT is currently being built as the southern access and will start operating in 2020.

The AlpTransit Gotthard AG (ATG), a fully-owned subsidy of the Swiss Federal Railways (SBB) as the principal for...

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