GIS Based Road Traffic Accident Black spot Sites Assessment: A Case Study of Kirkos Sub-city, Addis Ababa, Ethiopia

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Addis Ababa University


Road traffic accidents have been recognized as one of those adverse elements which contribute to the suffocation of economic growth in the developing countries, due to the heavy loss related to them, hence causing social and economic concern. Traffic safety is an important key and plays an integral role in sustainable transportation development areas. Now days, the main negative impact of road transportation systems are loss of property, injuries and deaths in road accidents. The objective of this study is to Assess GIS based Road Traffic Accidents black spot Sites related issues of Kirkos sub-city in terms of frequency, time and space from 2014 to 2018. The pivotal data necessary for the study was collected from the daily Road Traffic Accident records format of the Kirkos Sub city. Besides, point based traffic accident sites were collected using GPS data-logger devices, it was converted in to shape file using ArcGIS 10.2 software by uploading via DNRGPS application software then „Joins and relates‟ function. Thesis applied the combination of geo-information technology and spatialstatistical analysis to bring-out the influence of spatial factors in their formation. The results were presented in the form of line graphs, crosstabs, pie charts, figures and black spots maps. A traffic accident has multi-facet characteristics associated with it. For proper traffic accident black spots identification use of GIS technique has become an inevitable tool. The result of the study revealed that about 1154 people were affected by Road Traffic Accident casualties. In this connection, the road crashes coasted 537,563,785 ETB from 2014/15 to 2017/18. Besides, 54 Road Traffic Accident Black Spots, top 10 as well as 5 consistent Road Traffic Accident Black Spots have been identified and mapped for the sub city. This Study examined the relations between traffic accidents and city characteristics, such as trend, road factors, and spatial factors. In general, the location of traffic accidents is described as an address with text, so they are difficult to display on the map. These are concern with how to utilize the GIS to work-out on spatial analyst to record the traffic accidents, to map and identify road traffic accident black spots. Remedial measures and provisions for traffic safety are suggested for reducing the risk of accidents in black spots.



GIS, GPS, Road Traffic Accident, Road Traffic Accident Black Spots, Road Traffic Accident casualties