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C. M. and F. B. Sanderson JT, “Identification of hazardous road locations,” Canberra, 1985.

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Article

Assessment on the Impacts of Road Geometry and Route Selection on Road Safety: A Case of Mettu-Gore Road, Ethiopia

1Faculty of Civil & Environmental Engineering, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia

2Faculty of Agricultural and Environmental Sciences, Chair of Geotechnics and Coastal Engineering, Rostock University


American Journal of Civil Engineering and Architecture. 2019, Vol. 7 No. 1, 13-19
DOI: 10.12691/ajcea-7-1-2
Copyright © 2019 Science and Education Publishing

Cite this paper:
Alamirew Mulugeta Tola, Alemayehu Gebissa. Assessment on the Impacts of Road Geometry and Route Selection on Road Safety: A Case of Mettu-Gore Road, Ethiopia. American Journal of Civil Engineering and Architecture. 2019; 7(1):13-19. doi: 10.12691/ajcea-7-1-2.

Correspondence to: Alamirew  Mulugeta Tola, Faculty of Civil & Environmental Engineering, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia. Email: lolaal728@gmail.com

Abstract

The objective of this paper is twofold; First, it develops an excel program referring to the governing values of Geometric design manual of Ethiopia in order to identify and quantify inconsistent geometric design on Mettu-Gore road. In order to achieve the first fold of the study, the final As-built geometric design on Mettu-Gore road and the geometric design policy of Ethiopia have been used. Second, it assesses the geometric characteristics of police-reported hotspot zones of the road. The result was confirmed that road geometric parameters such as; Radius of a curve, Superelevation, Gradient, and Sight distance are the most significant factors affecting road safety on Mettu-Gore road.

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