equipment and to optimise the alignment in order to ensure sustainable and efficient operations. The focus was on the creation of an APS dossier.

The Bettembourg shanting yard, located just under 10 kilometres south of Luxembourg, is the most important and, with an extension of around 3.5 kilometres, the largest freight transport hub in the Principality. In the period between 2025 and 2032, operations are to be optimised for the future requirements of rail freight transport in terms of efficiency and cost-effectiveness by fundamentally modernising and converting the existing track systems, interlocking technology and shunting equipment. In addition to a fundamental reorganisation of the train formation groups, it is planned to install a new marshalling yard with a marshalling hump and modern shunting equipment as well as the associated process control technology. The project also includes the construction of a new electronic interlocking system (EASTW). The preliminary study APS, taking into account all relevant trades, forms the essential foundation for the subsequent detailed design planning APD (avant-projet définitive) and the further implementation process.

NEXTRAIL GmbH and quattron GmbH coordinated the necessary preparatory work for the construction and equipment trades. As part of the APS dossier, an inventory of the current state and a description of the target state, including the construction phase planning, were drawn up.