SPATIAL, ECONOMIC, AND TIME VARIABLES FOR A FUZZY MODEL OF ACCESSIBILITY TO MUNICIPAL SERVICES

For the planning of infrastructure systems, the models that include key elements of accessibility to municipal services in the early stages of spatial planning can be developed. Models for decision-making in patialplanning should enable suitable patialpresentation, economic assessments, and timely planning of infrastructure systems. This article describes the model of the accessibility to municipal services, which is based on the use of methods of fizzy logic. Spatiah economic, and temporal variables of the fuzzy model are discussed and a method for the determination of the membership functions is proposed. This method is based on sampling infrastructure systems within difflrent classes of population density. A statistical analysis of 156 existing residential areas in the Republic of Slovenia has covered from 10 to 20% of the residential areas within 10 local communities. Validation of economic variables and verification of proposed spatial membership functions has been made within 16 residential areas of different settlement densities and level of urbanization. The proposed method of spatial analysis is suitable for determining membership functions. For the proposed variables, a model of accessibiliot to infrastructure systems within Slovenia can be developed. There is a need fir further research to establish a comprehensive model related to the infiastructural capacti as well as environmental and social aspects of accessibility to municipal services.