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INVESTIGATING THE EFFECT OF DRAINAGE ON PAVED ROAD DETERIORATION
According to the cross roads program end of project 2015, the annual national road maintenance budget for Uganda increased from a mere UGX180bn in 2011/12 to UGX452bn in 2014/15 a huge increase of 151%. Most of this funding is channeled through the Uganda road funding. In spite of this increase however, the maintenance of roads in most districts in Uganda especially Kampala, indicate that a lot of supervision and monitoring needs to be done to ensure compliance with standing guidelines and most importantly that actual maintenance is carried out. This research aimed at generally establishing the variations and relationships between the drainage condition and road conditions in Kampala. Poor drainage has caused early deterioration of roadways leading to increased road maintenance costs, increased road accidents due to skidding and other structural failures. There was thus a need to establish the extent to which inadequate drainage on roads affects road performance. This was done through the examination of the drainage features on the selected roads as well as the road conditions of the roads. Since the road deterioration rate was found to be high, about 14%, there is need to implement closely monitored and supervised periodical maintenance works on roads. This can include activities like de-siltation of drains, removal of vegetation growth in drains and replacement of the damaged drainage features. Key Words Roadside Drainage, Paved Road, Road Deterioration, Road Maintenance
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