A few years ago, ProRail had the involvement of all railway lines and stations in war mapped out. Because these investigations were not drawn up in accordance with the current regulations of the WSCS-OCE, ProRail decided to have its control area re-examined in accordance with recent regulations. ECG's preliminary investigation department has been awarded the contract to investigate ProRail's southern management area for the next three years. In the coming years we will therefore obtain a lot of information about the provinces of Zeeland, Noord-Brabant and Limburg.