Abstract:
Construction delay is considered one of the most recurring problems in the construction
industry. For the purpose of this thesis delays have an adverse impact on project success in
terms of time. The effects of construction delays are not confined to the construction industry
only, but influence the overall economy of a country like Ethiopia. This research was conducted
to assess the causes of excessive delays in completion of the road project during the construction
phase due to the failures of Employer, Consultant and Contractor in Addis Ababa City Road
Authority road projects.
Spearman rank correlation coefficient from Relative importance index analysis were used to
test the agreement between different groups of respondents participated in questionnaires
survey and to rank the three construction parties and the causes of delay based on their
responsibility and importance accordingly.
The research identified 65 causes of delay through literature review. The analysis from the
questioner survey part was done by using a total of 51 valid questionnaires, which received
back from contractors, consultants and employer (AACRA).
Based on the data gathered from the questioner and analysis ,there were 40.00% of the
respondents from the contractors which represent the highest percentage of the responsibility
for the causes of delay. Ranked second was the Employer of about 26.15%, while the third was
consultant of 23.08% of the respondents and finally 10.77% of the respondents attested that the
Shared (the three parties generally shard) has the responsibility for causes of delay
According to the questioner surveyed Poor financial control of the project ,Difficulties in
financing project by contractor , Type of project bidding & award (lowest bidder) ,Poor site
management and supervision by contractor has , Selecting inappropriate contractors ,Lack of
high-technology mechanical equipment , both Ineffective scheduling of project by contractor ,
Inaccurate initial project scope estimate ,Ineffective control of the project progress and
Contractor’s staff are not properly trained in professional construction management
techniques were the top ten most important causes of delay in Addis Ababa City Road
Authority road projects.
