Constructing Scenarios’ Network-of-Flight Conflict in Approach of Intersecting Runway

Table 1

Operational risk.

Risk category	Risk name	Risk description
Flight risk	TCAS warning	Daxing Airport consists of four runways. The 11L/29R runway is an intersecting runway located in the East. Due to different operation modes, it is easy to cause TCAS warning
	Flight conflict	There will be a potential flight conflict with the operation of landing on 29R runway: the plane go-around track on 29R runway will cross with the tracks of the operating plane on the others runways
	Under the minimum interval	When multiple runways approach and take off at the same time, it is easy to trigger alarm, and there have been incidents that the approaching aircraft of adjacent runways under the minimum interval
	Wrong runway	There is an air force airport runway on the west side, which is not used for civil aviation, but it was easy to landed on the wrong runway and generate TCAS alarm
Environmental risk	Tailwind	When the aircraft runs northward, it is easy to run tailwind in spring and summer, which reduces the take-off and go-around performance of the aircraft
	Unstable approach	In the southward operation, due to the influence of terrain, it is easy to face turbulence, which has great interference on the approach stability and flight parameters
Operation limit	Forbidden zone	There are a lot of forbidden zones around Beijing
	Secondary radar fault	Taking off and landing aircraft without secondary radar transponders is prohibited in the airport; when secondary radar transponders fail on the ground or in the air, restrictions are formed