Graceful Degradation of Air Traffic Operations: Airspace Sensitivity to Degraded Surveillance Systems

2008 ◽  
Vol 96 (12) ◽  
pp. 2028-2039 ◽  
Author(s):  
M. Gariel ◽  
E. Feron
Author(s):  
Arman Izadi ◽  
Nicolas Hinze ◽  
Antonio Trani ◽  
Joseph A. Post

2021 ◽  
Vol 2096 (1) ◽  
pp. 012073
Author(s):  
A V Eliseev

Abstract It is shown that various sensors are used to ensure air traffic control in civil aviation, namely: primary and secondary radars, multilateration surveillance systems, automatic dependent surveillance systems of broadcast and contract types, multistatic radars. Based on the analysis of the main disadvantages of the considered systems, it was concluded that the use of multilateration aircraft surveillance systems (MLAT) is promising. The need to improve the reliability of MLAT is noted. The work proposes a method of structural and informational redundancy of MLAT based on the introduction of an additional receiver into its design. It allows to measure the distance to the aircraft using the energy method. The analysis of increasing the reliability of MLAT at various redundancy rates is carried out.


2012 ◽  
Vol 20 (4) ◽  
pp. 285-310 ◽  
Author(s):  
Banavar Sridhar ◽  
Neil Y. Chen ◽  
Hok K. Ng ◽  
Alexander Morando

Author(s):  
A. V. Strukova

The article deals with the tasks of detection and prevention of dangerous encounters as part of a prospective air traffic management system. A systematic description of the introduction of a new generation of communication, navigation and surveillance systems that provides technical capabilities for the modernization of the air traffic management system is given. 


Author(s):  
Paul U. Lee

Controller workload has been a focal topic in air traffic management research because it is considered a key limiting factor to capacity increase in air traffic operations. Because workload ratings are subjective and highly prone to individual differences, some researchers have tried to replace workload with more objective metrics, such as aircraft count. A significant caveat in substituting these metrics for workload ratings, however, is that their relationships are non-linear. For example, as the number of aircraft increases linearly, the controller's perceived workload jumps from low to high at a certain traffic threshold, resulting in a stepfunction increase in workload with respect to aircraft count, suggesting that controllers perceive workload categorically. The non-linear relationship between workload and aircraft count has been validated using data collected from a recent study on the En Route Free Maneuvering concept element (Lee, Prevot, Mercer, Smith, & Palmer, 2005). The results suggest that objective metrics, such as aircraft count, may not be used interchangeably with subjective workload. In addition, any estimation on workload should not be extrapolated from a set of workload measures taken from an experiment since the extrapolated workload is likely to significantly underestimate workload.


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