Table 3: Relative importance index and ranking of delay categories Owners Consultants Contractors Overall Category Index Rank Index Rank Index Rank Rank Client 2.76 7 2.57 6 2.77 3 6 Contractor 2.99 4.5 2.87 2 2.70 5 5 Consultant 3.07 2.50 2.79 5 2.80 1 3 Material 2.57 8 2.51 7 2.55 8 8 Labour 3.21 1 2.98 1 2.58 7 1 Machinery and equipment 3.07 2.50 2.85 3.50 2.74 4 3 Contractual relationship 2.98 6 2.40 8 2.65 6 7 External 2.10 9 2.02 9 2.31 9 9 Special factors in dam construction 2.99 4.50 2.85 3.50 2.79 2 3