Nederlandse Spoorwegen (NS), the largest train operator in the Netherlands, is retrofitting its fleet of 176 double deck VIRM passenger EMUs as part of the national programme to extend the European Rail Traffic Management System (ERTMS) across the Dutch rail network.
WSP was appointed to support NS by preparing the Specification of System and Process Requirements (SSPR) and the Verification and Validation substantiation report, providing the technical and process requirements needed for inclusion in the formal EU tender documents.