investigating the components affecting the role of local government in decongesting metropolises (case study: tehran city)

Local governments play a central and pivotal role in human spatial and geographical planning in urban structuring, and according to long-term plans, the amount of space occupied by humans as city residents is explained based on the type of government policies for a given area. urban density, as an important issue, is always of interest to politicians and urban planners, and its lack of proper control leads to the accumulation of space and activity in an asymmetrical context up to the urban density. the purpose of this thesis is to explain and examine the role of urban decongestion components with regard to the pivotal role of local government in the metropolis of tehran city. the research is analytical and has an applied purpose, but its developmental nature can be noted based on the study of concepts and the development of a multi-layered set of foundations. the method of collecting information is documentary and library, the basic concepts are first examined and then the layers of foundations are produced using the content analysis method and inductive reasoning. subsequently, each component is explained in terms of effective indicators and is analyzed separately based on the theoretical framework of the research, and finally a structural model of the final indicators is present. the results show the impact of the indicators on the subject in the form of 54 factors, which are presented in six tables. in future studies, it is possible to examine the internal relationships of the indicators using evaluation methods.