*Partly presented at the 29th Congress of the International Council of the Aeronautical Sciences, 8 September 2014, St. Petersburg, Russia.
Algorithms for self-separation of aircraft operating in a one-way high density air corridor are discussed. In the air corridor, which is considered as a tube or band-shaped piece of airspace that connects high-demand areas, only aircraft capable of self-separation may operate. It is required that all the aircraft fly in the same direction while maintaining safety without instructions of air traffic controllers. To realize high traffic throughput without losing safety, aircraft should be self-separated in an appropriate manner. Additionally, aircraft must operate inside of the assigned airspace for the air corridor operations. In this paper, an algorithm for self-separation of aircraft in a width-limited band-shaped piece of airspace has been developed. The algorithm determines maneuvers for conflict avoidance using information of surrounding aircraft. It is demonstrated that all the aircraft are able to self-separate without conflict in the width-limited air corridor. It is also demonstrated that self-separation using current state information results in a deadlock in the narrow air corridor. As the corridor width increases, aircraft are able to maintain the separation through the use of heading changes while maintaining their optimum speed. Additionally, it is indicated that the installation of sub-route and utilization of optimum speed information prevent a deadlock even though the corridor width is narrow.
Joint Planning and Development Office. Concept of operations for the next generation air transportation system version, Version 3.2, 30 September 2010.
RTCA, DO-242a. Minimum Aviation System performance standards for Automatic Dependent Surveillance Broadcast (ADS-B), 25 June 2002.
5.
Yousefi A, Lard J and Timmerman J. NextGen flow corridors initial design, procedures, and display functionalities. In: IEEE/AIAA 29th digital avionics system conference, Salt Lake City, UT, 3–7 October 2010.
6.
Yousefi A, Zadeh AN and Tafazzoli A. Dynamic allocation and benefit assessment of NextGen flow corridors. In: 10th AIAA ATIO conference, Fort Worth, TX, USA, 2010.
7.
Xue M. Design analysis of corridors-in-the-sky. In: AIAA guidance, navigation, and control conference, Chicago, USA, 10–13 August 2009.
8.
NakamuraYTakeichiN. Unidirectional air traffic flow control using airborne surveillance. J Jpn Soc Aeronaut Space Sci2011; 59: 76–82.
9.
NakamuraYTakeichiN. Decentralized control of an unidirectional air traffic flow with flight speed distribution. J Jpn Soc Aeronaut Space Sci2012; 60: 17–23.
10.
Takeichi N, Nakamura Y and Fukuoka K. Fundamental characteristics of decentralized air traffic flow control in high density corridor. In: 28th international congress of the aeronautical sciences, Brisbane, Australia, 2012.
11.
TakeichiNNakamuraYKageyamaK. Aircraft self-separation algorithm for high density corridor operation based on flight intent. Trans Jpn Soc Aeronaut Space Sci2014; 57: 179–185.
12.
Nakamura Y, Takeichi N and Kageyama K. A self-separation algorithm using relative speed for high density air corridor. In: AIAA modeling and simulation technologies conference, Boston, USA, 19–22 August 2013, AIAA-2013-5069.
13.
Project BADA. User manual for the base of aircraft data (BADA) Revision 3.10, Eurocontrol Experimental Centre, 2012.
