Research Progress of the Assessment Model of Collision Risk

Abstract

The main concepts and the research status at home and abroad of flight separation safety assessment are present. Then the flight separation safety assessments are addressed in detail from seven main models and their evolution: Reich model, ICAO model, EVENT model, intersecting rout model, probability model, stochastic analysis model, and RASRAM model, and then the application scope, merits and drawbacks of each model are analyzed. This provides a theoretical basis for the further research of free flight in the future: the flight separation safety assessment based on communication, navigation, surveillance (CNS) performance, the avoidance system how to reduce the collision risk, human factors how to influence the collision risk and do multidisciplinary cross-fusion research for risk assessment of airspace safety.