Driving Risk Assessment in Work Zones Using Cloud Model

Table 1

Evaluation factors concept partition.

Assessment factors	Driving risk	Ex	En	He	CD
a	safe	1.5	0.30	0.040	0.40
	Less safe	3.5	0.25	0.025	0.30
	Less dangerous	4.5	0.35	0.035	0.30
	dangerous	6.5	0.45	0.055	0.37
MSDE	safe	-3	0.80	0.170	0.64
	Less safe	-8	0.95	0.185	0.58
	Less dangerous	-13	0.80	0.160	0.60
	dangerous	-18	1.05	0.195	0.56
CV	safe	0.15	0.02	0.005	0.75
	Less safe	0.25	0.03	0.010	1.00
	Less dangerous	0.40	0.03	0.005	0.50
	dangerous	0.60	0.03	0.010	1.00