GIS&RS
farahnaz Khadem; Kimia Ebrahimi; Nazila Dadash Zadeh
Abstract
In recent decades, the expansion of the population and the speed of the urbanization process have caused many inconsistencies at the level of cities, especially big cities. One of these cases is the excessive increase in the production of urban waste and failure to observe the principles of management ...
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In recent decades, the expansion of the population and the speed of the urbanization process have caused many inconsistencies at the level of cities, especially big cities. One of these cases is the excessive increase in the production of urban waste and failure to observe the principles of management and its proper burial. In such a way that how to deal with this issue in urban plans is one of the main concerns in different urban dimensions, especially the environmental aspect. the main goals in the urban area and in order to achieve sustainable development, as well as strengthening the public health of cities and reducing various environmental pollutions, is to find a suitable place for urban wastes in a completely principled and desirable way, for this purpose, different methods and there is a difference in terms of their treatment and executive operations. the purpose of this research is to find the effective factors on locating, as well as finding a suitable place for burying urban waste in the metropolis of Tabriz and investigating the current situation of the city with the daily production of 1200 tons of waste. The studied method in reaching the set goal is analytical-descriptive and using the hierarchical decision-making model AHP,
the parameters affecting the location of the waste landfill, which include geology, slope of the area, urban land use, distance from the surrounding villages, distance from the river, distance from the roads, geology of the area, in the analytical process and layer production Descriptive and raster are evaluated.
The results show that among the factors affecting the location of the waste landfill in Tabriz city, the geological factor is the most valuable and the important areas based on the spectrum of the final map are dark green and often have pastures and crops.
Reza Solimani; Khalil Valizadeh Kamran; Davod Mokhtari; Ali Saeidi
Abstract
Adherence to non-operating defense principles in locating infrastructure, especially military centers, can reduce vulnerability and damage in times of danger and crisis and any military threat. There are several factors affecting this location, most of which are natural geographic (climatic and geomorphological) ...
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Adherence to non-operating defense principles in locating infrastructure, especially military centers, can reduce vulnerability and damage in times of danger and crisis and any military threat. There are several factors affecting this location, most of which are natural geographic (climatic and geomorphological) factors. Considering the development of cities and the placement of military centers within the urban context and the lack of adherence to non-operational defense principles in their placement and construction in the past, as well as the need to relocate most of the existing military centers at the provincial level, the importance of the case doubles. One of the main goals of the research is. Two groups of data were used in this study. Climatic data obtained from the Provincial Meteorological Organization and other data obtained from topographic and geological maps and related organizations The present study deals with the role of climatic elements and other effective factors in locating military sites. The purpose is to identify areas that are prone to non-operating defense principles. The strategic position of the East Azerbaijan Province in northwestern Iran in order to align with the Republic of Azerbaijan and Armenia and the Nakhchivan Autonomous Republic and to position itself on the European and Central Asian communication axis further emphasizes the importance of non-operational defense principles in locating sensitive and military centers. The research method in this research is based on the Network Analysis Process (ANP) and GIS analysis. After weighting the layers and overlapping them and examining the principles of non-operating defense, the final mapping was prepared and the results show that among the factors Effective in locating military centers in the study area, climatic factors have the highest weight (0.34).
Geomorphology
negin aali; Masoumeh Rajabi; Mir asadolah Hejazi; Shahram Roustaie
Abstract
Introduction Natural parameters are the main and determining factors in the physical development of mountainous cities. One of the mountainous cities of Iran, which has physically developed due to these parameters, is the city of Marivan. Marivan is located in the west of Kurdistan province, near the ...
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Introduction Natural parameters are the main and determining factors in the physical development of mountainous cities. One of the mountainous cities of Iran, which has physically developed due to these parameters, is the city of Marivan. Marivan is located in the west of Kurdistan province, near the western borders of the country, at a distance of 16 km from Iraq, between 25 degrees and 21 minutes to 35 degrees and 48 minutes north latitude and 45 degrees and 58 minutes to 46 degrees and 45 minutes east longitude. According to the last population and housing census conducted in 2016, it has a population of 151188. The city is located at the starting point of the Marivan-Esfandeghe geological region and is located in the geological-morphological structure of the young Zagros. Therefore, identifying and evaluating the factors influencing the physical development of this city is really important. To do this, the characteristics of elevation, slope and direction of slope, fault, focal points of earthquake occurrence, main and secondary waterways have been used.With regard to its location in northwestern Iran after the eight-year Iran-Iraq war, the study city has experienced significant physical growth and development due to its unique and pristine vital and natural location, which led to the development of this city. Regardless of geological constraints. At present, the city has the potential to benefit from high potentials in the fields of natural and cultural tourism, including (Zarivar Natural Lake, Bashmakh Regional Area, and Border Market, Bilo Plain, Garan Dam, Oramanat and Bazaar for supplying foreign supplies and products. It has become one of the dynamic and active economic-tourism hubs in the west of the country and there is a growing growth and development in the city; therefore, it is inevitable to pay attention to geomorphological factors and determine optimal directions for the development of this city. Methodology According to the National Physical Plan of Region 5, the city is in a relatively high risk of earthquakes, and with respect to available and cited maps, there are 7 sub-faults in the northern part of Marivan and 2 main faults in the western part of the city. For this reason, the physical development of the city is subject to certain restrictions. Marivan is also in a relatively high risk of earthquakes in terms of location in relation to natural hazards.It is an applied research and the method of work is descriptive-analytical and also the fuzzy logic model has been used to evaluate and model suitable areas for development so that each layer is fuzzy according to fuzzy membership functions in GIS environment. And then multiplication and addition operations and different values of fuzzy gamma have been performed on these layers. After overlapping and multiplying the fuzzy layers, a zoning map of the appropriate development route of the city was prepared and divided into 5 classes including completely suitable, relatively appropriate, appropriate, inappropriate and completely inappropriate for the physical development of the city.In the study, library methods, documentary and field studies have been used to collect the desired information and data. To evaluate the optimal development of urban lands, slope indicators, slope direction, fault zoning, main and secondary waterways, erosion, earthquake-prone points in and around the area have been used. The fuzzy and hierarchical analysis process (AHP) was used. Results and discussion In order to evaluate and weigh the information layers and to determine and score the impact factor of geomorphological indicators affecting urban development while extracting and reviewing the criteria examined in various valid researches and articles, scientific opinions and views of ten experts and specialists were counted and monitored. In order to determine the importance of each of the studied indicators on the location and physical development of Marivan city, the opinions and views of the experts were given based on the superiority of one factor over another and based on expert judgment, scores between 1 and 9 were given. The equivalence of expert scores based on fuzzy method was done by the authors of the article with the help of AHP & FUZZY software.Since 1996, due to the increasing growth and development of the city and the formation of informal settlements, the development of the city has taken place without considering geomorphological considerations, and this has caused the spatial-physical development of Marivan in the northern parts near the existing faults. The development of the city has taken place at relatively high risk. Conclusion Summarizing the research, it has been determined that the southern lands of this city have less proportion to the development of the city due to its proximity to Zarivar Lake and its location along the main and secondary waterways and its proximity to the earthquake centers. And to some extent, the East enjoys a higher level of development.
Urban Planning
isa piri; Akbar Hossin Zade; Samira Moradi
Volume 22, Issue 64 , September 2018, , Pages 35-57
Abstract
The situation of hospitals, especially in comparison to other urban and street network from one side of and population density on the other hand of urban residents has an important role in the physical and psychological comfort. In addition, hospitals can to determine radius of performance and jurisdiction ...
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The situation of hospitals, especially in comparison to other urban and street network from one side of and population density on the other hand of urban residents has an important role in the physical and psychological comfort. In addition, hospitals can to determine radius of performance and jurisdiction to determine the optimal location for this function to be effective. This research aims to evaluate the location of the existing hospitals in the city is the best place to deploy them. The research method is descriptive-analytic. To collect the required data from field studies used. For collecting required information and data is used field studies and According to information obtained, To review the study area in terms of access to communication road, green space, away from industrial centers, military, and the fault, as well as for weighting the criteria, is used the AHP model. Then, using a decision model of TOPSIS in GIS software, valuation of criteria in the study area and mapping in accordance with the selection criteria, finally The Intersect map of the standards that represent the best place for construction of the hospital in this range are extracted. The results of integrating layers, Land area suitable for the area for service users – treatment Classified in seven categories which finally lands a great right and good for the construction of health centers were identified. Analytic Hierarchy Process Model AHP with GIS can be used as effective tool in site selection of hospitals.
Hashem Dadashpour; Hamidreza Khodabakhsh
Volume 17, Issue 46 , February 2014, , Pages 67-90
Abstract
Temporary housing is considered as one of the most common ways to provide housing for homeless people that providing shelter after disaster, immediately after providing emergency shelter and pre-reconstruction is forwarded. Although this method of was residence considered at a specific time period and ...
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Temporary housing is considered as one of the most common ways to provide housing for homeless people that providing shelter after disaster, immediately after providing emergency shelter and pre-reconstruction is forwarded. Although this method of was residence considered at a specific time period and it will lose its original function during the time, but the process of location is very important. The main goal of the paper is the location of temporary housing in region 16 of Tehran. The theoretical foundations of temporary housing and habitat were initially studied and then some 24 index for examining of temporary housing sites was identified. Significance coefficient of each the 24 indicators have been considered using Fuzzy Analytic Hierarchy Process (FAHP), and then the overlapping layers data have been identified and the coefficients in the GIS software environment were applied. The results of findings show that among the indicators studied; five indicators including ownership, the time use of space as temporary housing, adjacence to the passageways and road networks, adjacence to gas networks and the present land use were the most important variables, and three indicators including adjacent to passageways and road networks boundary, being away from sound pollution and waste collection centers had the lowest importance in the process of selecting locations for habitation for homeless people. In addition, the Beesat and Farvardin parks have been identified as the most appropriate locations for establishing the temporary housing sites according to the method and the selected indicators.
Jamal Mohammadi; Asghar Zarrabi; Hossein Pourgayyoumi
Volume 16, Issue 38 , February 2012, , Pages 123-152
Abstract
Nowadays the industrial pollutions have destructive influences on biology environment and the life of their inhibitors. For reducing the destructive effects of these biological hits, the most effective and at the same time the simplest way is to improve the Green space and biology. The geographic information ...
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Nowadays the industrial pollutions have destructive influences on biology environment and the life of their inhibitors. For reducing the destructive effects of these biological hits, the most effective and at the same time the simplest way is to improve the Green space and biology. The geographic information software by utilizing different analysis functions, allows the incorporation of spatial and non-spatial data and also the management and simultaneous analysis of them, thus it can be used as an instrument for city planners. In the Kazerun city that was studied in this article, the excessive lack of green space and un just distribution of that is highly sensed. This study searches for efficient distribution of Green space by using hierarchy analysis (AHP) and index overlap model (IO). To obtain this aim, by using the GIS software and after going through data collection stage, providing new data layers, sorting and valuating the layers and at last, weighing and data layers overlapping, we prioritize the Kazrun city lands for new Green space development. At last, we divided these lands to very good, good, medial, weak and very weak that after adapting this map to land facts, the very good and good land classes were chosen for Green space development (local or City Park). The current research method is descriptive-analytic. The required information of this research were collected from field observation, comprehensive design study and descriptive of Kazerun city, 1/2000 maps of current situation
