Table 3 Importance index and ranking.

From: An investigation study on residential buildings for cost overrun

S. No.

Category influence Costoverrun

Identity of factors

FI

SI

II

Ranking based on Importance Index

1

Periodic Design Changes

F1

0.72

0.68

0.49

5

2

Non-timely payment from Client to contractor

F2

0.67

0.61

0.41

9

3

Inadequate Skilled Labour

F3

0.82

0.65

0.53

3

4

Inadequate supervision

F4

0.76

0.50

0.38

10

5

Non-coordination of Contractor and Designer

F5

0.71

0.67

0.47

6

6

Lack of Inspection by Designer

F6

0.68

0.68

0.46

7

7

Climatic variation on exceution of project

F7

0.61

0.61

0.37

11

8

Hike in Materials Cost

F8

0.56

0.53

0.29

12

9

Overall lag in schedule of work

F9

0.86

0.82

0.71

1

10

Rework/Extra work in Unforeseen situation

F10

0.82

0.67

0.55

2

11

Inadequate design and specification

F11

0.76

0.68

0.52

4

12

Lack of Labour Performance

F12

0.71

0.65

0.46

8