**Abstract**

The quality of the environment is essential for our health, our economy and our well-being. However, it faces a number of major challenges, not least those related to climate change, unsustainable consumption and production, and various types of pollution.Spatial planning policies (and EU legislation) protect natural habitats, keep water and air clean, ensure adequate waste disposal, improve knowledge of toxic substances and support the transition of businesses towards a sustainable economyThe goal of the work is to develop a standardized methodology for the monitoring and management of spatial information as the basis for spatial planning. The present work makes use of data analysis methods in spatial planning, where the proposed "mathematical" model is of help in supporting decision making. In fact, certain decisions often arise only from the evaluation of certain parameters, which are always small; it is necessary to consider them all, even in a disaggregated way, and give the right weight to each one. The proposed model describes the territorial system as an interaction between the physical system and the social system; it interpret needs and identify problems concerning the physical system and the social system; and formulate purposes and deduce objectives expressed in quantitative magnitude; formulate forecasts on the consequences of decisions to change the uses of the physical system, through electronic processing. The model could be used to evaluate alternative guidelines for change; andto choose from among the possible alternatives the one that is believed to contribute most to the pursuit of the objectives.

**Keywords:** Uncertainty, decision making, land use, planning, scenario
