The Swedish Transport Administration (Trafikverket) has brought the Rolling Stiffness Measurement Vehicle (RSMV) to the Netherlands in order to measure dynamic track stiffness of the Dutch rail network. Performing continuous measurements is part of collaboration between TU Delft, ProRail and the Swedish partner. Mehran Sadri and Michael Steenbergen from the Section of Railway Engineering at TU Delft are working on the project. The final aim of the project is to characterize the dynamic performance of the entire Dutch network. TU Delft is responsible for developing a theoretical model and prediction of both environmental vibration radiation and long-term degradation of the track. The initial measurements have been performed from 21st to 25th of March 2017. The RSMV will be available at the Amersfoort station for a period of six months. The first phase of measurements has been completed using a single excitation frequency. More standstill and continuous measurements will be carried out within the next six months. The measurements will be planned according to findings of the first phase of the project.