Homayoon Nooraie; Ahmad Rahimi; Mahsa Fatahian
Abstract
Providing the required fuel for vehicles and in line with it, choosing the Proper location for fueling stations is considered as one of the important and key issues. In recent years, due to the lack of large and suitable spaces for the construction of a new fuel station, for the first time in the country, ...
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Providing the required fuel for vehicles and in line with it, choosing the Proper location for fueling stations is considered as one of the important and key issues. In recent years, due to the lack of large and suitable spaces for the construction of a new fuel station, for the first time in the country, the first phase of the linear fueling station a the Isfahan metropolis has been implemented. Before entering the implementation of the second phase of the project and also the extension of the stations to other metropolises of country, the evaluation of linear fueling stations especially in terms of landuse quality (matrices of compatibility, desirability, capacity and dependence) is very important. In this regard, in this research library and field methods have been used to collect data. In addition, a combination of fuzzy logic and analytic hierarchy process (AHP) has been used to analyze the status of linear fueling stations. The results show that in general, 34% of all linear gas stations in Isfahan are in a relatively unsuitable location and 20% of them are in average condition in terms of qualitative evaluation of the landuse. The general suggestions of this research are to pay attention to providing the necessary infrastructure for the construction of linear gas stations, eliminating the shortcomings of existing linear stations and conducting integrated transportation and land use studies before the implementation of the second phase of the project.
Sanaz Saeedi; Mehdi Asiaei
Abstract
One of the most important ways to deal with flood risk is to zoning the flood potential. The present study was conducted with the aim of zoning the risk of floods in Sabzevar with emphasis on urban and rural areas in 2020. This research was of applied type, and fuzzy logic, hierarchical analysis ...
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One of the most important ways to deal with flood risk is to zoning the flood potential. The present study was conducted with the aim of zoning the risk of floods in Sabzevar with emphasis on urban and rural areas in 2020. This research was of applied type, and fuzzy logic, hierarchical analysis and GIS were used. In this study. Eight criteria of slope, distance from river, altitude, geology, land use, rainfall, drainage density and vegetation have been studied. In order to zone the risk of floods in Sabzevar, based on the above criteria, first the layers are rasterized and then the layers are obtained using fuzzy, fuzzy membership functions and finally fuzzy maps. Then, with the help of Excel software, the process of pairwise comparison of criteria with each other and then the final weight of the criteria are combined with fuzzy layers, and finally the obtained maps are matched with fuzzy operators and the zoning map is extracted. The results of this study showed that the effective variables in causing floods in the region include slope with a weight coefficient of 0.340 and precipitation with a coefficient of 0.184. Of course, vegetation variable with a coefficient of 0.020 has the least impact in the region. According to the flood risk classification map, Sabzevar as the most important population center of the city is in low risk zone. In terms of rural settlements, most of the settlements of this city are in very low, low and medium risk zone.
