Difficulty level

Sustainability Guidelines

Low (%)

Moderate (%)

High (%)

Mean

SD

1

Act with less impact on natural resources such as flora, fauna, air, soil and water

0

30

70

3.80

0.61

2

Build projects with longer life and lower maintenance costs

10

27

63

3.80

0.96

3

Use materials, technologies and raw materials of local origin

7

40

53

3.50

0.68

4

Use natural resources with environmentally regular origin

13

37

50

3.43

0.82

5

Use or produce innovations that reduce the pressure on natural resources

7

43

50

3.53

0.78

6

Operate with greater efficiency in the use of natural resources such as water and energy

10

43

47

3.47

0.82