An Evaluation Method of Flight Conflict Based on Multidimensional Indicators

Abstract

The present invention provides a method for evaluating flight conflicts based on multi-dimensional indicators. The method includes: a1: clarifying the influencing factors of flight conflict evaluation, and each factor corresponds to multiple indicators; a2: based on aeronautical big data, calculating each factor in the flight conflict occurrence period. The index evaluation score of the time slice; a3: The weight of each indicator is determined by the entropy weight method; a4: According to the calculation result and the indicator weight of the evaluation score of each indicator in each time slice during the conflict occurrence period, the flight conflict score result of each time slice is obtained; a5: Average the flight conflict scores of the time slice to obtain the final evaluation score of the event. This method comprehensively considers various factors that affect flight conflicts, clarifies the degree of influence of each factor, reduces the deviation of qualitative judgment, and provides more sufficient objective data based on the evaluation method of aviation big data, the calculation method is simple, and the results are displayed. Intuitive; the evaluation results are more accurate and objective; use the distribution of scores to quantify and compare different conflict events, find the commonality of similar events, and propose improvement measures.

Description

technical field [0001] The invention relates to the technical field of air transportation, in particular to a method for evaluating flight conflicts based on multi-dimensional indicators. Background technique [0002] Safety is one of the most important concerns in the field of air transport. A flight conflict usually means that two civil aircraft are less than the specified separation standard during actual operation. Regarding the relevant regulations of the Civil Aviation Administration, although flight conflicts can be identified qualitatively, there is no intuitive and quantitative evaluation method for the severity of flight conflicts. At present, the Reich model and the Event model are mainly used in domestic and foreign research. The aircraft is imagined as a collision box, and the probability of collision between two aircraft is evaluated by theoretical methods such as probability theory. Although it has certain reference for the evaluation method of flight conflic...

AI Technical Summary

Problems solved by technology

At present, the Reich model, Event model, etc. are mainly used in domestic and foreign research, and the aircraft is assumed to be a collision box, and combined with theoretical methods such as probability theory to evaluate the collision probability of two aircraft. The disadvantage is that only the separation factor between two aircrafts is considered, and less consideration is given to the approaching trend between two aircrafts and the busyness of the airspace when conflicts occur, which leads to the comprehensiveness, accuracy and objectivity of the evaluation results. Poor, cannot quantify the evaluation results, can not guide the practice of flight conflict response well, and is not conducive to find the commonality of similar incidents, and propose improvement measures

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