جغرافیا و آمایش شهری منطقهای (Jan 2016)
Study the spatial distribution of populating attractive centers spatial distribution in relation with tectonic structure of Kerman city
Abstract
One of the basic principles that should be considered in urban planning is that of spatial distribution of population in relation to hazardous contexts for urban population. Earthquake is one of these risks which its occurrence is followed by irreparable damages. Since fault structure of a zone has a direct relationship with seismicity of that very zone, knowing the fault structure and tectonic structure could cause a proper distribution of population centers to these structures because zones with less than five kilometers away from fault zones are considered critical points, which have the highest risk of earthquake damage. Kerman city is always in danger of earthquake due to its seismic location. This study tries to investigate spatial distribution of Kerman city population centers toward fault structure of Kerman city in a descriptive-analytical way. At first, data were prepared from census of population and housing in Kerman in year 2011. Then types of Kerman faults within 30 km distance from the city were identified. And at the end, distribution of population centers in relation with reverse faults, strike-slip faults, normal faults and minor faults were analyzed. The study results indicate that 669 centers of the population attraction centers are located within 20 kilometers and 407 centers are located within 30 kilometers from the reverse fault, 274 centers are located within 20 kilometers and 775 centers are located within 30 kilometers from the strike-slip fault. 794 centers are located within 20 kilometers and 282 centers are located within 30 kilometers from the normal fault. 699 centers are located within 20 kilometers and 377 centers are located within 30 kilometers from the main fault. At the other hand, 381 centers are located within 4 kilometers and 500 centers are located within 6 kilometers from the minor fault, and three commercial centers, a healthcare center and three educational centers are also located within 800 meters from this kind of fault. In general, commercial and educational centers in study area have the lowest distance to different types of faults, and sports centers have the lowest distribution in the minimum distance of different faults. Due to improper distribution of population attraction centers in the study area, efficient and proper planning for this area is necessary to prevent possible damages.
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