Physical Development of Arak City Applying Natural features of the ground floor
Subject Areas : Climatology
منیژه قهرودی تالی
1
(
استاددانشکده علوم زمین(گروه جغرافیای طبیعی)، دانشگاه شهید بهشتی،تهران،ایران
)
محمد سلیمانی
2
(
استادیاردانشکده علوم جغرافیایی، دانشگاه خوارزمی،تهران،ایران
)
بابک میرباقری
3
(
مربی دانشکده علوم زمین، دانشگاه شهید بهشتی،تهران،ایران:
)
مهدیه اسفندیاری
4
(
کارشناس ارشد ژئومورفولوژی،دانشکده علوم زمین،دانشگاه شهید بهشتی،تهران،ایران
)
Keywords: TOPSIS, Arak City, : city physical development, physical structure, flood plain,
Abstract :
Cities are developed on the areas requiring interactions with natural characteristics. In physical development of the cities, it is necessary to consider natural structure of their environment. Arak's physical geography condition shows that this city located in bad condition of sedimentology structure. Therefore, development of the city needs to study about city bed sedimentology and be determine thickness, of sediments. The purpose of the research is to evaluate the suitable areas for physical development of the city in the future. Also found new physical index for developing of city based on morphological features is aimed. For the objective, the indicators of the analysis are geomorphological landforms, climatology, topographic roughness coefficient, tectonic influenced factors, natural land uses, runoff height in the city and city relation with Mighan Desert where is located in the north of Arak City. TOPSIS model has been employed to prioritize the proposed areas. The effective weights of the physical variables for planning the city future development are topography, climatology, petrology etc., that have been determined by expert opinions using AHP model that impacts in the research targets. For assessment of TOPSIS model result, sediment random sampling has been conducted in the region in depth of 40 cm. Sediment analysis represented that the area is located in flood bed which the sediments were accumulated by flash floods that has unfavorable conditions for the establishment of municipal utilities. Unsuitable areas for urban development have also been discerned to avoid risks of urban possible hazards.
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