A Causal Model for Safety Assessment Purposes in Opening the Low-Altitude Urban Airspace of Chinese Pilot Cities

Table 3

Information of start, data, link, and end components.

Class	Num.	Input	Output	Description
Main; Model		/		Basic trajectory data
		,		Initial parameters
		/		New trajectories
				Counting component
				Updated trajectory list
				Sorted trajectory list
				Counting component
				Potential conflict
				Counting component
				Divided detected matched conflicts
		/		Temporal and spatial integrated principle
				Counting component
		,,	,	Enumerable groups with integrated principle
				Counting component
				Counting component
		,		Revised conflict trajectory list
			/	Improved conflict-free trajectory list
		/		TST trajectory groups
				Counting component
				Related parameters
				TST trajectory groups with set parameters
				Counting component
			,	Selected i-th element of waypoints
				Acceleration criterion
				Deceleration criterion
			/	Revised conflict trajectory list
		/		VCT trajectory groups
				Counting component
				Related parameters
				VCT trajectory groups with set parameters
				Selected i-th element of waypoints
		/		Altitude variation criterion
				Splited altitude variation
				Counting component
				Newly constructed waypoints
			/	Revised conflict trajectory list