Bekalu, WubeshetMiressa, Shimelis2020-06-182023-11-042020-06-182023-11-042019-09-05http://etd.aau.edu.et/handle/123456789/21714Many road construction projects have been undertaking in Addis Ababa city and in these constructions it is becoming common experiencing a project delay problem in road construction projects. This project time delays usually lead to adverse effects on the growth of national economies, contribute to major financial losses, and hold back the development of the Addis Ababa city Therefore, it is essential to study and analyse causes of road construction project time delays. This paper studied a list of road construction delay causes (74 factors) gathered from literature having different types of construction, different countries, different periods and different numbers of delay causes. The questionnaire survey was distributed to 120 participants (clients, contractors, and consultants) and 83 were collected. Relative Importance Index (RII) was calculated and accordingly the top twenty and the least twenty delay causes of construction projects have been identified. A case study on two projects have been analysed and identified a common factor for project time delay. From the overall relative importance index analysis, most critical factors of road construction delay have been identified as (1) Slow land expropriation due to resistance from occupants / Slow site clearance; (2) Delays in contractor’s progress payment by owner; (3) Shortage of materials/Equipment’s on site; (4) Difficulties in financing the project by contractor; (5) Delay to deliver the site among the top five factors contributing to road construction project time delay in the city. Spearman ranking correlation coefficient has been employed to test the agreement level of the project parties on the identified delay factors and accordingly the test results reveal good agreement on the causes between owners and consultant has been revealed and a somewhat low correlation between contractors and with both owner and consultants In order to optimally overcome the road construction delays in the city, a recommendations partiilalry a strategic planning integrations in order to overcome the impact of dependency from different parties are forwarded.en-USRoad projects.Project Delay Factors,Addis Ababa road Authority,Causes of project delayThesis