The Poldermodel approach is consensus-based. The poldermodel is a model on which Dutch society and politics are based. The Poldermodel ensures that different planning systems are used for every ministry. There is a need to draw all planning systems together into one system. This is done by means of communication and negotiation. The Poldermodel intends to involve as many (relevant) stakeholders as possible to give every person the possibility to plan developments on the scarce land.