builders go up and down aboard | N | Y | ||||||||||||||||
staff slipping | N | Y | N | Y | ||||||||||||||
emergency plan is not comprehensive | N | Y | N | Y | N | Y | N | Y | ||||||||||
no effective monitoring system | N | Y | N | Y | N | Y | N | Y | N | Y | N | Y | N | Y | N | Y | ||
N | 1 | 0.65 | 0.75 | 0.6 | 0.5 | 0.35 | 0.4 | 0.3 | 0.4 | 0.22 | 0.3 | 0.15 | 0.1 | 0 | 0 | 0 | ||
Y | 0 | 0.35 | 0.25 | 0.4 | 0.5 | 0.65 | 0.6 | 0.7 | 0.6 | 0.78 | 0.7 | 0.85 | 0.9 | 1 | 1 | 1 | ||