An efficient transportation system is of vital importance for the development of a country. Inrnaddition, its multiple function of providing access to employment, social, health and educationrnservices makes road networks crucial in fighting against poverty by opening up more areas andrnstimulating economic and social development. There is a problem, however, which is commonrnthroughout the world, and that is neglect of maintaining roads. As the road network deteriorates,rnthe whole country loses major assets build up over years, assets created with vast amounts ofrnmoney, time and effort. Insufficient consideration of maintenance during the road planning andrndesign process is a well-known problem for actors involved in this process and maintenancernactivities. The problems of performing maintenance activities and their related costs are oftenrnsubject for discussion. This is not reflected in literatures as published research papers within thernsubject are very limited. The World Bank has written many papers in this regard! The situationsrnin our country concerning the road condition are not only urgent, it is critical. Therefore, therngeneral objective of this study is to evaluate economically delay in road maintenance usingrnHighway Development and Management Tool (HDM-4) software in case of Addis Ababa city.