Construction of Monitoring Model and Algorithm Design on Passenger Security during Shipping Based on Improved Bayesian Network

Table 2

Influencing index system of passenger security during shipping.

Target layer	System layer	Criterion layer	Factor layer
Passenger security risks during shipping	Crew	Character trait	Psychological quality
			Safety awareness
		Personal ability	Operational capacity
			Working years
		Physiological conditions	Health condition
			Degree of fatigue
	Vessel	Vessel maintenance	Level of vessel maintenance
		Vessel age	Condition of vessel age
		Hull structure	Stability of ship structure
		Ship equipment	Ventilation system
			Fin stabilizer
			Air conditioning equipment
	Environment	Hydrologic condition	Wave height
		Weather condition	Wind
			Visibility
		Shipping order	Vessel density
			Channel order
	Management	Safety management system	Soundness of safety management system
		Emergency rescue system	Soundness and implementation of emergency rescue System
		Execution of rules and regulations related to safety	Degree of execution of rules and regulations related to safety
		Safety instruction broadcast	Frequency of safety instruction broadcast
		Safety instruction post	Number of safety instruction posts
	Psychophysical characteristics of passengers	Physical characteristics	Heart disease history
			Poor health
		Psychological characteristics	Seasickness
			Fear of water