Browsing by Author "Sendabo, Degelo (MR.)"

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    Analysis on Terrain and Related Challenges in Defense Command Post Site Selection Using Web-Based Gis: a Case of Ada’a District, Eastern Showa Ethiopia
    (Addis Ababa University, 2015-06-06) Akele, Menbere; Sendabo, Degelo (MR.); Asrat, Asfawossen (PhD)
    The defense force keeps the sovereignty of the nation and responsibility to the operation of mission success at right time and place to control key terrain areas, to deliver logistics and to combat troops with accurate terrain information. But manually combining terrain information is tiresome, time taking, costy and results vary from expert to expert, therefore the analysis of terrain features for command post best site selection is one of the basic tasks from different military operations and the study provides decision makers and commanders to analyze the terrain visually using automated systems to obtain correct information about the terrain and evaluate the terrain in terms of military aspects. To understand the ground and achieve military goals, the basic sources of information for studying the terrain are topographic maps, aerial photographs, military sketches and sand model. This research paper identifies terrain features for defense command post site selection using RS and GIS techniques and customize and publish maps in web-GIS C4I system for decision makers or commanders. The command post suitable site selection is based on input data layers of elevation, slope, roads, land use land cover, soil types, geological and geomorphological features. The multi-attribute and multi-criteria evaluation methods (GIS with AHP) are used for factor analysis and aggregation. Multi factor analysis or weighted overlay analysis assigns more importance of some criteria over the others. The AHP principle can be used to aggregate the priority for all level of hierarchy structure and the method can be done using any GIS system having overlay capabilities, combine input layers and generate the output command post suitable map. The result showed that optimal sites clearly identified as a higher elevation weight equal to 39% influence is the most important criteria from others. The resulting maps of GIS – AHP indicates best result and suitable location for military command post in Ada’a district.
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    Gis Based Physical Accessibility to Health Facility: a Case Study of North Shewa Zone, Amhara Regional State of Ethiopia
    (Addis Ababa University, 2014-05-05) Fantaye, Yetnayet; Berhan, Getachew (PhD); Sendabo, Degelo (MR.)
    Population of Ethiopia is still facing higher rate of morbidity and mortality. Majority of population lives in rural areas where healthcare service is very poor. Physical accessibility to healthcare measures in terms of travel time, and distance to the nearest health facilities from people‟s residential areas. From these measurement options, this study used traveling time to reach health facilities from patients‟ home. The main aim of the study was to assess physical accessibility to health facility within an hour of travel either by walking or by vehicles. To achieve this objective, the study depends on AccessMod 4.0 model and incorporates population, landuse, road network, digital terrain model, location of health care facilities and travelling time scenarios. Population distribution data were prepared by interpolating population at Kebele level. Land-cover data for the study area was prepared from Landsat enhanced thematic mapper plus satellite images and classified into five landcover types by using supervised method of image classification. Classified landcover types were assigned traveling speed per hour in the traveling scenario table. Results obtained from the model provide hospitals serving about 72937(4%) peoples and health centers 240,473(13%) out of the whole population in an hour of travel time either by walking or by vehicles, and covers 4,167 km2 and 704.91 km2 area, respectively. Hence, priority must be given to areas with lower health facility population ratio and areas where there are access limitations to these facilities within the defined scenario.