Geographical space is modelled according to main principles of systemic modelling and the anticipatory paradigm. In this way a computer based prototype supporting spatial decisions and the management of the physical environment is established. In using the prototype with real world historical data it is demonstrated that an anticipatory approach may ameliorate spatial planning and decision making. However, before being fully operational the model has to be improved in several ways. Further, attitudes, insights, and working skills of the physical planners and decision-makers have to be improved in order to take full advantage of the anticipatory approach.