K-means clustering and analysis of operation stability for control sector

doi:10.16265/j.cnki.issn1003-3033.2024.07.0197

Abstract

Abstract:

In order to better analyze the stable sub-safety state and unstable sub-safety state existing in control sector operation, K-means algorithm was used to cluster three control sector operation stability evaluation indicators of excess-capacity ratio(ECR), retention degree and flight attitude mixing ratio so that the optimal classification of the operation stability of control sector was determined. The index threshold corresponding to each level was obtained by clustering analysis of a single index. Combined with the index weight calculated by the entropy weight method, the operational stability level of the control sector in each time period was obtained according to the principle of maximum membership degree. Then, the comprehensive evaluation model of control sector operation stability was constructed. The actual flight data of Xiamen No.01 sector was selected to more comprehensively analyze operation situation of control sector from the perspectives of stability and trend. The results show that the best effect is obtained when the control sector operation stability level is divided into three categories. The stability varies with time due to the influences of air traffic flow and control conditions, especially in the two time periods of 7: 30-9: 15 and 20: 00-21: 00, when the change of stability is most obvious. The controllers need to pay great attention to improving the safety of airspace operations.

Key words: control sector, operation stability, trend, K-means clustering, comprehensive evaluation

CLC Number:

X949

YUE Rentian, YANG Guoguo. K-means clustering and analysis of operation stability for control sector[J]. China Safety Science Journal, 2024, 34(7): 98-104.

Figures/Tables 8

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序列号	ECR	R	M
1	0	0.857	0
2	0.286	0.195	0.200
3	0.095	0.571	0.163
4	0.381	0.619	0.446
5	0.714	0.626	0.760
6	0.857	0.371	0.795
︙	︙	︙	︙
28	0.714	0.371	0.727
29	0.857	0.482	0.864
30	0.571	0.122	0.551
︙	︙	︙	︙
61	0.286	0.195	0.262
62	0.571	0.429	0.614
63	0.476	0.200	0.431
64	0.238	0.673	0.226

指标/等级	3	2	1
ECR	[0,0.357]	(0.357,0.643]	(0.643,1]
R	[0,0.292]	(0.292,0.595]	(0.595,1]
M	[0,0.403]	(0.403,0.636]	(0.636,1]

时间序列	稳度	趋度	时间序列	稳度	趋度
1	0.75	0	31	0.5	0.125
2	0.75	0	32	0.625	0
3	0.75	-0.125	33	0.625	0.125
4	0.625	-0.125	34	0.75	0
5	0.5	-0.125	35	0.75	0
6	0.375	-0.125	36	0.75	0
7	0.25	0.25	37	0.75	-0.125
8	0.5	0.125	38	0.625	0
9	0.675	0.125	39	0.625	0
10	0.75	0	40	0.625	0
11	0.75	-0.25	41	0.625	0
12	0.5	0	42	0.625	0.125
13	0.5	0	43	0.75	-0.25
14	0.5	0	44	0.5	0
15	0.5	0.25	45	0.5	0.125
16	0.75	0.125	46	0.625	-0.125
17	0.875	0	47	0.5	0.25
18	0.875	0.125	48	0.75	-0.125
19	1	-0.125	49	0.625	0
20	0.875	0	50	0.625	0.125
21	0.875	0	51	0.75	0
22	0.875	-0.125	52	0.75	0.25
23	0.75	0.125	53	1	-0.25
24	0.875	0	54	0.75	-0.125
25	0.875	-0.125	55	0.625	-0.125
26	0.75	0.125	56	0.5	-0.25
27	0.875	-0.125	57	0.25	0.125
28	0.75	-0.125	58	0.375	0.125
29	0.625	0	59	0.5	0
30	0.625	-0.125	60	0.5	0