Causes and Impacts of Delays in Ethiopian Public Construction Projects (Case on Debre Markos University Construction Projects)

Table 8

Index of importance for the most essential factors in total outcomes.

No	Causes of project delay	RII	Rank	Factors related
1	Inaccurate time estimate	0.9788	1	Consultant
2	Force majeure	0.9884	2	External
3	Lowest bid procurement policy	0.9847	3	External
4	Construction material market instability	0.9753	4	External
5	Frequent design changes	0.9345	5	Consultant
6	Delay in performing testing and inspection	0.9265	6	Consultant
7	Failure to give written instruction	0.92	7	Consultant
8	Late in reviewing and approving design document	0.9121	8	Consultant
9	Financial capacity of the contractors	0.907	9	Contractors
10	Insufficient number of staff	0.9023	10	Client
11	Slow decision making	0.8884	11	Client
12	Information delays	0.8884	12	Client
13	Change order	0.8853	13	Client
14	Poor economic conditions	0.8814	14	External
15	Preparing incomplete/undetailed BOQ	0.8791	15	Consultant
16	Changes of mind during construction	0.8776	16	Client
17	Shortage of construction material	0.8721	17	External
18	Delay in approving a major change in the scope of work	0.8698	18	Consultant
19	Inaccurate cost estimate	0.8698	19	Consultant
20	Poor briefing of the document (specification, BOQ)	0.8605	20	Consultant
21	Late delivery of materials	0.8605	21	Contractors
22	Law-balling/low costing	0.8279	22	Contractors
23	Inadequate preparation of tender and contract documents	0.8233	23	Consultant
24	Poor coordination and communication with other parties	0.821	24	Contractors
25	Suspension of work upon the engineer’s instruction	0.803	25	Contractors
26	Late approval of payment	0.8	26	Consultant