Causes of Delay in the Construction Projects of Subway Tunnel

Table 3

Ranking of the causes from the owner.

Cause	View of consultants		View of contractors		Combined view
	Rank	Severity index	Rank	Severity index	Rank	Severity index
Progressing payments delay by the owner	1	71.72	1	72.65	1	72.19
Postponement of the project by the owner	2	68.21	3	68.38	2	68.30
Delay in providing construction materials	3	66.47	2	69.36	3	67.92
Delays in decision making by the owner	5	64.56	4	63.76	4	64.16
Change orders by the owner during construction period	6	62.25	5	60.82	5	61.54
Late land handover to the contractor by the owner	4	66.25	7	55.53	6	60.89
Poor financial status of the owner	7	61.12	6	58.67	7	59.90
Poor communication between the owner and other construction parties	8	57.95	9	48.90	8	53.43
Undefined scope of working	9	54.62	8	51.03	9	52.83
Late issuing the approval documents by the owner	10	52.38	10	47.83	10	50.11