Causes of Delay in the Construction Projects of Subway Tunnel

Table 17

Ranking of main classifications.

Classification	View of consultants		View of contractors		Combined view
	Rank	Classification severity index	Rank	Classification severity index	Rank	Classification severity index
Owner	3	62.55	4	59.69	3	61.12
Designer	9	46.59	8	50.26	9	48.43
Contractor	7	51.72	7	54.71	7	53.21
Consultant	8	49.39	9	49.15	8	49.27
Labor	5	58.12	5	58.34	5	58.23
Environment	6	53.62	6	54.88	6	54.25
Material	2	62.70	3	60.59	2	61.65
Equipment	1	66.41	1	65.96	1	66.19
External factor	4	59.63	2	61.14	4	60.39