Table 6.
RII ranking for Consultants-related delay factors.
| S/N | Consultant-related causes of delay | RII | RII ranking | Level of contribution |
|---|---|---|---|---|
| 1 | Delay in the approval of major changes in the work scope | 0.800 | 1 | Very high |
| 2 | Poor communication and coordination | 0.767 | 2 | High |
| 3 | Lack of significant experience of consultant | 0.750 | 3 | High |
| 4 | Mistakes and discrepancies in contract documents | 0.700 | 6 | High |
| 5 | Delays in creating design documents | 0.733 | 4 | High |
| 6 | Inadequate site survey and data collection before design | 0.713 | 5 | High |
| 7 | Delay in instructions from consultants | 0.671 | 8 | High |
| 8 | Back report of the consultant | 0.692 | 7 | High |