2BELLANTONI J F. The calculation of aircraft collision probabilities [J]. Transportation Science, 1973, 7(4) : 317 -339.
3SHEPHERD R, CASSELL R, THAPA R, et al. A reduced aircraft separation risk assessment model[ C ] // Proc. AIAA Guidance, Navi- gation and Control Conference 2002, Washington. Reston: Ameri- can Institute of Aeronautics and Astronautics, 2002.
4XIE Y, SHORTLE J F. Airport terminal-approach safety and capaci- ty analysis using an agent-based .model [ C ]//Proceedings of the 2004 Winter Simulation Conference. Washington: IEEE, 2004: 1349 - 1357.
5CAMPOS L M B C, MARQUES J M G. On the probability of colli- sion between climbing and descending aircraft [ J ]. Journal of Air- craft, 2007, 44(2) : 550 -557.
6LU Guangquan, LIU Miaomiao, WANG Yunpeng, et al. Quantif-ying the severtity of traffic conflict by assuming moving elements as points in intersection [ C ]//ASCE. Proc of the 2011 International Conference of Chinese Transportation Professionals, Nanjing. Re-ston: The American Society of Civil Engineers, 2011 : 893 -900.
