امكان سنجي سيستم اطلاعات جغرافيايي در ايجاد و تعيين مركزيت واحدهاي اداري -سياسي مطالعه موردي: شهرستان كرج

Feasibility Study of Use of GIS in Determining Administrative-Political Central Units Case study: City of Karaj

Although political system of every country determines its management system. it is not possible to run a country without dividing it into smaller units. The capital. periphery and boundaries of politicaladministrative div isions are three effective parameters. The city of Kara] is one of the suburbs of Tehran. with a large population and three districts of Asara. Central Karaj. and Eshtehard. The major chunk ofthe population is concentrated in the Central Karai, which can be divided into smaller units for more suitable access of the residents to administrative services. 1100...ʹever. the selection of the central unit faces vigorous competition between different units and hence this selection must notlead to social tension. 1n the present paper auernpts have been made to stud) the feasibility of selection of the most suitable sites for the central district of the new units through using such techniques as GIS. The required data have been collected from satellite photos or remote sensing. Also analysis of access to determination of the central unit in GIS space became possible and tinally decision was made for the analysis of the best access in GIS space. The findings of the present stud) show that there is possibility of establishing only one district in the region. hence it is necessary to establish only one central district. Analysis of the multi variable scenarios showed that the best decision for give more weight to township is centrality of Mohammad Shahr. while Mahdusht comes next. scoring the highest points.