جستجوی مقالات مرتبط با کلیدواژه « fuzzy model » در نشریات گروه « مدیریت »

Currently, the world is continuously growing and developing due to the increase in population and diverse human needs, and its speed is increasing day by day. Therefore, humans always change and transform their surroundings and try to choose the best places for their lives. The purpose of the current research is to analyze and investigate the geomorphological limitations of the physical development of Mahabad city and its optimal location in the future development. For this reason, 1:100000 geological maps, layers of elevation, slope, direction of slope, geology, land use, flood, erosion, fault, satellite images and by processing and providing these parameters in ARC GIS software, editing and digitization have been done on them. Is. Finally, by using fuzzy and hierarchical logic models, land zoning has been done for the physical development of Mahabad city. The results showed that the formation of this city in its current position was not based on geomorphological studies, but due to the existence of fertile plains and plains, which are among the oldest human settlements. The most suitable direction for the physical development and expansion of Mahabad city is towards the north and towards Mahabad Jalga (ruined city). According to the zoning map, about 12.5% ​​in fuzzy multiplication and about 29.1% in fuzzy addition are part of the appropriate area.

Earthquake as one of the most important natural hazards in cities, causes huge financial and human losses every year, and one of the most necessary measures in this field is the application of disaster risk management principles. One of the most important requirements of those affected by natural hazards is to have a safe shelter.

The type of research is applied and conducted based on descriptive-analytical approach. Based on effective criteria for the optimal location of emergency and temporary housing, 19 information layers of Damghan city were used, and then a map of suitable areas for emergency and temporary housing was prepared using Fuzzy model and ArcGIS software.

The results obtained showed that, the parts located within the boundaries of Daneshjoo Park and Jungle Park, Imam neighborhood, Baharestan neighborhood, Mosala (under construction), Golestan settlement and Mehr housing, University of Basic Sciences Damghan, Imam Hossein, 15 Khordad, Daneshjoo and Saadi squares in the city of Damghan had a higher priority for locating emergency and temporary housing after a possible earthquake, which requires the proper attention of organizations and departments (municipality, governorate, Red Crescent, etc.) In the field of providing and equipping the infrastructure, providing necessary tools, equipment and items (medicine, food, water and energy sources, etc.) during possible earthquake in Damghan city, along with the education of all citizens and their participation. It should be noted that the rest of the existing urban area of Damghan, which is about 70% of the urban area, needs serious attention considering crisis management caused by a possible earthquake and is not suitable for emergency and temporary housing.

The main crisis management strategy is to build emergency and temporary housing bases for earthquake survivors to reduce the damaging effects after an earthquake. Therefore, in urban land use planning in cities such as Damghan, it is necessary to locate land use suitable for earthquake risk such as rescue and rescue centers and shelters according to the population and other geographical and climatic conditions (weather and wind conditions).

Various factors such as overcrowding, land leveling and occupation of rivers along with climatic factorsin urban areas have caused urban flooding .The city of Ilam is no exception; This has caused a lot ofdamage to residential areas, roads, fields and farmlands over the past few years. The purpose of this studyis to evaluate and zoning flood-prone areas in Ilam. For this purpose, criteria such as slope, geological features,topography, streamflows, soil and land use were selected, weighted and standardized by hierarchicalanalysis and fuzzy model.Then, zoning map with overlapping the weighted maps for each criterion was preparedin the GIS. Final analysis of the map shows that the north and northwest areas have the highest potentialfor flood risk. The results also showed that 0.60% of the total area are in very high vulnerability categoryand 6.29% in high vulnerability class, 20.92% in the average vulnerability class, 50.23% in low vulnerabilityclass and 21.95% in the very least vulnerable category.