A Method of Planning Disaster Emergency Rescue Paths in Road-Free Environment

Table 2

Rules for general evaluation.

Influencer	Impact weight	Index	Factor		Velocity coefficient
Vegetation (body width)	0.087	Type	Grassland		0.70
			Dryland		0.80
			Farmland		0.50
		The average spacing of shrubs	<motorized object body width		0
			≥motorized object body width	<3 m	0
				≥3 m	0.20
		The average spacing of trees	<motorized object body width		0
			≥motorized object body width	<3 m	0
				≥3 m	0.20
Water system (chassis height)	0.110	Average depth	<the wading capability of the motorized object	<30 cm	0.30
				≥30 cm	0.10
			≥the wading capability of the mobile object		0
		Bottom	Mud		0
			Sand		0.20
			Gravel		0.30
Geology	0.275	Type	Flat ground		1.00
			Hill		0.20
			Mountain		0.10
			Gobi		0.25
			Beach		0
			Swamp		0
			Desert		0.40
Disaster	0.357	Type	Mudslide		0
			Landslide		0
			Slope		0.10
			Crumble		0
			Collapse		0
			Earthquake		0.20
DEM (climbing ability)	0.171	Slope	<the climbing ability of the motorized object	<10°	0.80
				10°–30°	0.30
				>30°	0
			≥the climbing ability of the motorized object		0
		Elevation	<2000 m		0.89
			2000 m–5000 m		0.65
			>5000 m		0.26