The invention relates to a terminal area prevailing
traffic flow recognizing method based on track spectral clusters. The method includes the steps of firstly, analyzing a given airport pavement to obtain flight path data, and conducting dividing to obtain feature track points and normal track points; secondly, setting up a space rectangular coordinate
system; thirdly, putting forward an occupation degree concept according to the distance between a track and the center of a space grid, and enabling the occupation degree concept to be used for representing the occupation degree of the track in the space grid; fourthly, setting up an inter-track overall
similarity model on the basis of a track partial
similarity model; fifthly, constructing an Laplacian
similarity matrix, and then analyzing the clusters through the spectral
cluster algorithm; sixthly, conducting prevailing
traffic flow recognition on the clusters obtained in the fifth step through the
nuclear density estimation method; seventhly, displaying the recognition result in a displaying and interaction module. The terminal area prevailing
traffic flow recognizing method has the advantages that a prevailing traffic flow track and an abnormal track can be simultaneously obtained through the spectral
cluster algorithm, therefore, related personnel are assisted in scientifically and reasonably planning a terminal area and improving airport entering and leaving air lines, and the capacity of the terminal area is improved.