correlation parameter

Considering the dynamics of cities, their transformation over time is inevitable. Nowadays, in the study of urban issues, the recognition and analysis of urban morphology is of particular importance in the investigation of phenomena and their developments. Therefore, the aim of the present research is to measure the morphological changes of Ardabil city by using the spatial layout analysis method (in the framework of the plans and programs of Ardabil city). In this research, in order to investigate the morphology of the city based on the changes in the correlation index of the extracted data related to the analysis of the axial line map in Space Syntax Network and Arc Gis software. QGIS has been studied during the periods (1307-1340) and (1340-1355). The results of the research showed that the difference between the highest and the lowest interconnectedness in the context of Ardabil city in the first period is less than the second period. This indicates that the city of Ardabil in the period 1307-1340 compared to the period 1340-1355 had a more homogeneous structure and characteristics. In general, based on the results of this study, it can be said that one of the most important influencing factors in the changes in the fabric of Ardabil city during the passage of time has been the inter-connectivity changes caused by physical-spatial changes.