Construction along a railway line, adjacent to a university hospital and in the centre of the city demands special methods. The new Level Regional Training Centre (ROC) in Leiden, is located on such a site. The complexity of this site was further exacerbated by a complex functional programme. In addition to a large school, the 60,000-m2 complex will include a hotel, catering facilities and offices. To make sure that a building of this size retains its human dimension, MVSA added all kinds of large open spaces and atriums to the complex.