KJSET Volume. 2, Issue 2 (2023)

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Contributor(s)

Ahmed Abdirahman Bile, Kolawole Adisa Olonade, and Muhaise Hussein
 

Keywords

Pavement index maintenance pavement distresses economic value distress density
 

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Evaluation of Pavement Performance: A Case of Bushenyi-Ishaka Road, Uganda, East Africa

Abstract: Pavement evaluation plays vital roles in the life of any road system. It is needed to assess performance and identify appropriate maintenance methods to adopt. Bushenyi-Ishaka road is the major road that links Ishaka Town to Bushenyi and Mbarara towns. There have been several maintenances on the road but the road pavement kept failing. It was observed that there has not be pavement assessment on the road to suggest appropriate maintenance methods. This study, therefor, carried out pavement evaluation of the road with the view to identify its performance and providing suitable maintenance methods. Information were obtained from relevant stakeholders such as engineers and users to understand the frequency of maintenance and maintenance methods deployed on the road. Field study was also conducted to measure various pavement surface distresses at every 50 m on the span of 7km of the road. The 50 respondents cut across professionals working in relevant agencies. It was gathered that the road is of economic value to the people of Ishaka and damage frequently despite routine maintenance. There has not been any pavement evaluation study of the road. The outcome of the pavement evaluation indicated that potholes was the common distress on the road with average distress density (ADD) of 0.67 followed by alligator cracking at with ADD of 0.65, Edge cracking at 0.62, Rutting and Transverse & longitudinal cracking at 0.55 each. The least distress found was bleeding (0.27). In terms of Pavement Condition Index (PCI), the overall average value of the road obtained was 33% (0.33) indicating poor performance. Different maintenance techniques were then suggested depending on the distress obtained. It is important therefore that such studies are carried out in order to timely inform people in charge when they are supposed to carryout maintenance and which strategy/techniques to employ economically.
 
 
 

KIU Journal of Science, Engineering and Technology (KJSET) -- ISSN: 2958-0641, 2024