Investigation of Conflict Characteristics at Airway Intersections
Publication: Journal of Transportation Engineering
Volume 120, Issue 5
Abstract
Congestion of aircraft traffic along airways and in the terminal areas of large airports has significantly increased in recent years. To handle the new levels of congestion in the skies a better understanding of air conflicts is necessary. This paper presents a stochastic model that evaluates the number of conflicts for a spatial geometry of two intersecting airways. The stochastic nature of any desired parameter that defines aircraft location or performance characteristics is accounted for by the simulation process. The structure of the model ensures its efficiency in terms of computer resources as well as its accuracy. The effect of shape of the arrival distribution functions on the shape of the conflict distribution function and its variance was investigated. The variance of the number of conflicts is dependent on the aircraft‐arrival distribution. This association is not a simple one, since an airplane on one path can conflict with more than one airplane on the other path. Thus the covariances in the variance term are dependent on the interarrival time described by the distribution. In a similar way the shape of the distribution function of conflicts was found to be dependent on the aircraft‐arrival rate distributions.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Bekhor, S. (1990). “Evaluation of air traffic control models,” MSc thesis, Technion—Israel Institute of Technology, Haifa, Israel.
2.
Dunlay, W. J. (1975). “Analytical models of perceived air traffic control conflicts.” Transp. Sci., 9, 149–164.
3.
Friedman, M. F. (1985). “Air conflict frequency calculations.” Trans. Res. Rec., 19B(1), 15–16.
4.
Friedman, M. F. (1989). “On the exact distribution of the number of perceived conflicts with prescribed duration in air traffic control.” Trans. Res. Rec., 23B, 245–256.
5.
Geisinger, K. E. (1985). “Airspace conflict equations.” Transp. Sci., 19(2), 139–153.
6.
Schmidt, D. K. (1977). “On the conflict frequency at air route intersections.” Trans. Res. Rec., 11, 351–355.
7.
Siddiqee, W. (1973). “A mathematical model for predicting the number of potential conflict situations at intersecting air routes.” Transp. Sci., 7, 158–167.
Information & Authors
Information
Published In
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Jun 25, 1991
Published online: Sep 1, 1994
Published in print: Sep 1994
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.