Extended Abstract
Introduction
Introduction
The use of urban, social and physical service indicators can be a suitable criterion for determining the location of sustainable settlements and a factor in solving problems to achieve sustainable urban development, and finding a suitable and sustainable settlement location is an introduction to The sustainable design of the biological complex is considered. Therefore, compliance with the principles and dimensions of sustainable development in locating settlements is one of the fundamental requirements.
  Based on this, it will seek to answer the following basic questions:
- What are the most important indicators affecting the location of sustainable residential complexes in the city of Isfahan?
- What are the best places to build sustainable residential complexes in the city of Isfahan?
 
Methodology
This applied research, in terms of method, is a part of descriptive-analytical research, and in terms of the method of data collection, it is in the category of library-field research. To collect the materials related to theoretical literature and foundations, various library sources such as institutional documents, authoritative scientific articles, statistics, maps, books, electronic resources, etc. are used and for prioritization and weighting. The information layers (indicators effective in the placement of sustainable residential complexes) have also been used using the field method and the questionnaire tool and the design of language expressions (the superiority of one criterion over another). The studied indicators for the placement of areas prone to sustainable residential complexes in six categories of physical-spatial criteria (being safe from natural hazards, the existence of a suitable space for providing green space and justice), social-cultural (the existence of a compatible neighborhood complex and security) and calmness), physical (geological (distance from the fault) and water sources (flood risk)), environmental (proper view of the settlement and the amount of air and noise pollution), access (use of vehicles and transportation ways and access to the chain network) It is classified according to the level of movement) and economic (land and ownership and its value, the affordability of providing land). Also, the information needed to evaluate the location of sustainable residential complexes was collected and their information layers were drawn. Then, different layers of urban uses effective in placement in the study area (Isfahan city) were prepared and descriptive information was transferred to the layers based on the research objectives, and thus a geographic database of the entire study area was prepared.
 
Results and Discussion
The results of the research and in response to the questions:
Regarding the most important indicators affecting the location of sustainable residential complexes in the city of Isfahan, the results obtained from the technique of network analysis process (ANP) showed that among the six criteria studied, three physical, environmental and economic criteria. Each of them is the most important with the importance coefficient of 0.371, 0.194 and 0.177 respectively, and the three parameters of physical space, access and social culture are the least important with the importance coefficient of 0.103, 0.084 and 0.071 respectively. in the process of placement of stable residential complexes in Isfahan from the perspective of sustainability. Also, among the 13 sub-criteria under study, the geological index with a weight of 0.215 is the most important, and the index of the existence of suitable space for providing green space with a weight of 0.012 is the least important. Regarding the best places for building sustainable residential complexes in the city of Isfahan, the results of ANP-GIS combined analysis showed that the western and eastern regions have the most suitable places for building sustainable settlements. Also, the central areas have the most inappropriate places in terms of the neighborhood pattern.
 
Conclusion
The current research was carried out with the aim of locating sustainable residential complexes based on the principles of sustainability and with the ANP-GIS method. In order to do this, first, by examining reliable sources and study backgrounds, using the opinions and views of related experts and academic experts, 6 criteria (spatial-physical, social-cultural, physical, environmental, access and movement, economic) and 13 sub-criteria (Being safe from natural hazards, the existence of a suitable space to
 
provide green space, justice, the existence of a compatible neighborhood complex, security and peace, geology (distance from the fault), water sources (flood risk), suitable landscape of the settlement, the amount of air and noise pollution, benefit from vehicles and transportation ways, access to the hierarchical network of movement, land and ownership and its value, affordability of land supply) were identified. In the next step, a database related to the studied criteria is prepared in GIS software, and after determining the vulnerability distances for each of the relevant criteria, a spatial distance map is drawn using the Euclidean Distance option. Further, considering that the maps of spatial distances produced in the previous stage lacked homogeneous units, in order to standardize them, the fuzzy standardization method was used with a numerical range of 1 (least compliance with the principles of contiguity) to 5 (the most compliance with the principles of contiguity). In the next step, according to the different effect of each of the studied criteria on the placement of sustainable residential complexes, the multi-criteria decision making technique of network analysis process (ANP) was used. For this purpose, first, a questionnaire was prepared and designed to give weight to the information layers, and then it was completed by 15 experts and university professors, and finally, after collecting the relevant questionnaires, it was analyzed using Excel and Super Decisions software and the final weights of criteria and sub-criteria were obtained. After performing these calculations, the final weights were affected by using the Raster Calculator tool and the multiplication operator in the information layers (hexagonal criteria) and finally, using the Fuzzy overly command, the hexagonal layers were placed on top of each other. has been taken and the final zoning map of suitable places for building sustainable residential complexes has been prepared.