Spatial suitability for the distribution of event hall sites in Samarra for the year 2020
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Abstract
The research aims to give a detailed picture of the reality of the spatial distribution of event hall services and determine the degree of their spatial suitability for serving the population and area of residential neighborhoods in the city of Samarra for the year 2020, using the contemporary applied method that adopted the application of geographic information systems (GIS) technology, using many of its functions in the analysis process Spatial and building of spatial suitability models according to planning standards, and the study found clear deficiencies and defects in the spatial distribution of event hall services in the city, which made them take the convergent random pattern, as the calculated value of (R) reached (0.75), which leads to the weakness of the service provided , And that a percentage (68.49%) of the total area of the city is only served by the scope of the impact of event hall services, which indicates the size of the deficiency in the ideal coverage of this type of services and the need to build optimal spatial suitability models for their distribution
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References
-Shurooq Muhammad Qaisi, Rania Fadlallah Abdullah Al-Sheikh, Analyzing the Adequacy of Banquet Hall Locations in Jeddah Using Geographic Information Systems, Journal of Humanities Social Sciences, Kingdom of Saudi Arabia, Volume (12) Issue (3), 2019, p.160
-It is an abbreviation of the words Global Positioning System, which means the global positioning system, consisting of (24) satellites installed in (6) specific orbits from outer space and determines the location on the surface of the earth with respect to longitude, latitude, altitude and direction And the distance very precisely. Sees Ali Latif Mahmoud Hamad Al-Jubouri, Spatial and Functional Analysis of Educational Services in Balad Using Geographic Information Systems (GIS), Unpublished Master Thesis, College of Education for Human Sciences, University of Tikrit, 2013, p.63 .
-Jumah Muhammad Dawood, Foundations of Spatial Analysis in the Framework of Geographic Information Systems (GIS), previous source, p. 41
-It is one of the spatial analyst tools within the (ARC GIS V10.3) environment in which the density of linear phenomena can be measured. It has been used with the city road network to find out the areas with high density in the street network and the areas with low density that need To additional streets and their comparison with the distribution of community services sites, Ali Latif Mahmoud Hamad Al-Jubouri, Spatial Adaptability of Community Services and Its Sustainable Prospects in Samarra, Unpublished PhD Thesis, College of Education for Human Sciences / University of Tikrit, 2019, p. 132 .
- Geographers are interested in studying the spatial distributions of geographical phenomena by identifying the spatial center of gravity or the geographical center of the focus or the main point of attraction for those distributions and comparing it to the realistic distribution within a specific spatial framework (region, region, city) Source: - Muhammad Azhar Al-Sammak, Ali Abbas Al-Azzawi, Research Geographical Between Specific Methodology, Quantitative Methods and Contemporary Information Technologies (GIS), Ibn Al-Atheer House for Printing and Publishing, University of Mosul, 2009, p. 121
- It is represented graphically on the map by drawing a circle whose center is the spatial mean and the radius of the standard dimension, and to know the extent of dispersion, it is possible to take advantage of the probabilities of the moderate distribution to show the concentration of (68.27%) of the elements of the phenomenon around the spatial center. If the distribution is normal, otherwise, the nature of the distribution Affected by other factors Source: Khadija Abdul Zahra Hussain, Building an Analytical Model to Simulate Educational Services for Secondary Schools in Basra City Using Geographic Information Systems, Basra Studies Journal, Fifth Year, Issue 10, 2011, p.155
- The distribution trend scale is used to determine the shape and direction of the geographical extension of the spatial distribution of services within the area of the studied area, and to make use of it for planning procedures Source: - Ali Abd Al-Abbas Al-Azzawi, Statistical spatial analysis using Arc GIS 9.3, University of Mosul, College of Education, Department of Geography, 2011 , P. 720 .
- It is used to measure the dispersion of points around each other and to determine the general pattern of the spread of points in spatial distributions, as these distributions can be random, regular, or focused according to the value of the analysis (R). Abdul Halim Bashir Al Faruq looks at Nuzha Yaqzan Al Jabri, the neighborhood relationship analysis in Geographical Studies in Application on Human Settlements in the Makkah Region, Umm Al-Qura Journal for Human Sciences, Volume 1, Issue 1, 2009, p. 151. Muhammad Azhar Al-Sammak, Ali Abbas Al-Azzawi, Geographical Research between Methodology, Specialization, Quantitative Methods, and Contemporary Information Technologies (GIS), Dar Al-Yazouri, Amman, Jordan, 2011, p. 185 .
- The Republic of Iraq, the Ministry of Construction and Housing, the General Housing Authority, the Urban Housing Standards Pamphlet, April, 2010, pp. 15 and 22, the buffers in the Geographic Information System (GIS) are intended as the boundaries that surround one of the geographical phenomena on the map (point points, line Line, Polygon area) and equal distances regardless of the impact of the road network based on these geographical phenomena, so that the map separates into two types of areas, one of which is located within a designated distance called the Buffer Zone and expresses a specific event, and the other lies behind Ali Abd Abbas Al-Azzawi Geographical Information Systems (GIS), Foundations and Applications, Ibn Al-Atheer House for Printing and Publishing, University of Mosul, 2009, p. 260 .
- This analysis is used to find out the area covered by each service, regardless of its schematic level and spatial hierarchy, by converting it from the point layer to the polygon layer, so that for each spatial location there is one polygon that shows its actual services (not The scope of its effect) This method demonstrates the ability of numbers of health centers to absorb the population in the place through the gradation of colors in measuring efficiency, as dark colors indicate a mismatch between health centers and the area they cover with their services, while light-colored areas indicate the areas in which they are The area is less than the capacity of health centers to cover. Source Rafid Musa Abd Hassoun, Fuad Abdullah Muhammad, Religious services in the city of Diwaniyah, their geographical distribution and functional efficiency, Al-Qadisiyah Journal for Human Sciences, Al-Qadisiyah University, Issue 4, 2014, p. 332 .
- Finding the best places for a particular service based on known criteria is called the suitability model, which is an abstraction of the truth that allows the possibility of studying spatial relationships, and is used in geographic information systems to link classes with logical processes to help in decision-making. For more see Latif Mahmoud Hamad Al-Jubouri, Spatial Convenience For community services and its sustainable prospects in the city of Samarra, previous source, 2019, pp. 280-278 .