Spatial Analysis of the Cities of Asir Region

Abstract

region; in terms of: the development of their numbers and their spatial analysis. The study adopted historical and descriptive methods, in addition to using the application (ArcGIS 10) in conducting spatial analysis of cities, in developing maps, and in the process of data analysis in order to achieve the objectives of the study.

The study concluded that: the number of cities in Asir Region was three cities in (1974 AD/1394 AH), then the number of cities increased gradually to reach 16 cities in (2010 AD/1431 AH). Moreover, it found that Al-Ithnayn City is the central feature of the cities included in Asir Region; as it is located to the west of the mean center – about (23.56 km) far from it. The directional distribution of the cities in Asir Region extends from the southeast to the northwest, with an inclination angle of this oval shape of about (154.38) degrees. Further, the study found that the value of the Average Nearest Neighbor is (1.331421); which indicates that the geographical distribution of the cities tends to follow a pattern of (irregular) distances between cities in Asir Region.