scholarly journals Traffic Network Identification Using Trajectory Intersection Clustering

Aerospace ◽  
2020 ◽  
Vol 7 (12) ◽  
pp. 175
Author(s):  
Ingrid Gerdes ◽  
Annette Temme
Keyword(s):  
Traffic Management ◽  
Structural Complexity ◽  
Air Traffic Management ◽  
Air Traffic ◽  
Main Flow ◽  
Route Network ◽  
Air Traffic Controllers ◽  
Trajectory Length ◽  
Network Identification ◽  
Simulation Systems

The current airspace route system consists mainly of pre-defined routes with a low number of intersections to facilitate air traffic controllers to oversee the traffic. Our aim is a method to create an artificial and reliable route network based on planned or as-flown trajectories. The application possibilities of the resulting network are manifold, reaching from the assessment of new air traffic management (ATM) strategies or historical data to a basis for simulation systems. Trajectories are defined as sequences of common points at intersections with other trajectories. All common points of a traffic sample are clustered, and, after further optimization, the cluster centers are used as nodes in the new main-flow network. To build almost-realistic flight trajectories based on this network, additional parameters such as speed and altitude are added to the nodes and the possibility to take detours into account to avoid congested areas is introduced. As optimization criteria, the trajectory length and the structural complexity of the main-flow system are used. Based on these criteria, we develop a new cost function for the optimization process. In addition, we show how different traffic situations are covered by the network. To illustrate the capabilities of our approach, traffic is exemplarily divided into separate classes and class-dependent parameters are assigned. Applied to two real traffic scenarios, the approach was able to emulate the underlying route systems with a difference in median trajectory length of 0.2%, resp. 0.5% compared to the original routes.

Inter-Organizational Safety Debate

2012 ◽  
Vol 4 (1) ◽  
pp. 30-47 ◽  
Author(s):  
Paola Amaldi ◽  
Simone Rozzi
Keyword(s):  
Traffic Management ◽  
Safety Management ◽  
Active Role ◽  
Air Traffic Management ◽  
Air Traffic ◽  
Organizational Safety ◽  
Air Traffic Controllers ◽  
Safety Constraints ◽  
Reference Domain ◽  
Core Issue

The management of safety critical operations cannot be left to the initiative of those individuals directly in contact with the production processes. Society as a whole has a role. This paper explores the interface between societal components having a direct active role in the “safety debate”. The reference domain is air traffic management and the interface is among air traffic controllers and pilots – as directly involved in the management of the air traffic – and two agencies, the NTSB (responsible for safety investigation after an accident) and FAA (responsible for regulating, upgrading and training of the workforce). Recent debates in safety management highlight that safe practice is a control problem: the result of effective hierarchical transmissions of safety constraints and making the boundaries of acceptable performance visible. This work analyzes how safety constraints related to an alarm system are represented, transmitted and interpreted by several parties – all committed to safety of operations in air traffic management. A “miscalibration” pattern has emerged where the tendency to ignore the alarm was initially addressed at higher hierarchical levels in relation to alarm design, and only in 2006 was addressed in relation to the core issue of nuisance or false alerts (FA).

scholarly journals The Principles and Organization of Air Traffic in Military Operations: Experiences from the Mission in Iraq

2020 ◽  
Vol 6 (1) ◽  
pp. 77-88
Author(s):  
Rafał Zajkowski
Keyword(s):  
Traffic Control ◽  
Traffic Management ◽  
Air Traffic Management ◽  
Air Traffic ◽  
Military Operations ◽  
Air Traffic Controllers ◽  
Airport Infrastructure ◽  
Aviation Operations ◽  
Traffic Organization ◽  
The Military

This article analyzes the principles and organization of the operation of the military runways used by Polish and Allied aircrafts during missions in Iraq. The main goal of the article is to describe the organization and method of air traffic management by the Polish air traffic controllers (ATC). It depicts the method of planning and preparing aviation operations, the principles of air traffic organization, which were the responsibility of the Polish controllers, and the rules for the traffic above the airstrip. Among the particular problems that are discussed, there are the rules of airspace segmentation, the introduced solutions for air traffic control, and the use of airport infrastructure. The experiences discussed include valuable information regarding the process of securing air traffic that can be helpful in the organization of landing pads and in preparation of both Polish and allied military contingent aviation personnel for future aboard operations. This paper presents the results of the research carried out with the ATC personnel performing tasks in Iraq.

scholarly journals Identifying Operational Benefits of the Arrival Management System – A KPI-Based Experimental Method by Evaluating Radar Trajectories

2021 ◽  
Vol 33 (5) ◽  
pp. 633-645
Author(s):  
Songwei Liu ◽  
Junfeng Zhang ◽  
Zihan Peng ◽  
Haipeng Guo ◽  
Anle Pi
Keyword(s):  
Traffic Management ◽  
Decision Support Tool ◽  
Air Traffic Management ◽  
Air Traffic ◽  
Support Tool ◽  
Performance Improvements ◽  
System A ◽  
Original Intention ◽  
Air Traffic Controllers

The arrival management (AMAN) system is a decision support tool for air traffic controllers to establish and maintain the landing sequence for arrival aircraft. The original intention of designing the AMAN system is to improve the efficiency of air traffic management (ATM), but few studies are investigating the operational benefits of this system based on key performance indicators (KPIs) and evaluating actual data in a real-time environment. The main purpose of this paper is to propose a KPI based transferable comparative analysis method for identifying the operational benefits of the AMAN through radar trajectories. Firstly, six KPIs are established from a joint study of the mainstream ATM performance frameworks worldwide. Secondly, appropriate evaluation technique approaches are determined according to the characteristics of each KPI. Finally, a Chinese metropolitan airport is taken for the case study, and three periods are defined to form data samples with high similarity for comparative experiments. The results validate the feasibility of the proposed method and find comprehensive performance improvements in arrival operations under the effects of the AMAN system.

Safety Culture and Safety-Relevant Behavior in Air Traffic Management

2015 ◽  
Vol 5 (1) ◽  
pp. 3-17 ◽  
Author(s):  
Michaela Schwarz ◽  
K. Wolfgang Kallus
Keyword(s):  
Safety Culture ◽  
Traffic Management ◽  
Service Providers ◽  
Five Factor Model ◽  
Principal Component ◽  
Air Traffic Management ◽  
Air Traffic ◽  
Psychometric Validation ◽  
Safety Attitudes ◽  
Culture Development

Since 2010, air navigation service providers have been mandated to implement a positive and proactive safety culture based on shared beliefs, assumptions, and values regarding safety. This mandate raised the need to develop and validate a concept and tools to assess the level of safety culture in organizations. An initial set of 40 safety culture questions based on eight themes underwent psychometric validation. Principal component analysis was applied to data from 282 air traffic management staff, producing a five-factor model of informed culture, reporting and learning culture, just culture, and flexible culture, as well as management’s safety attitudes. This five-factor solution was validated across two different occupational groups and assessment dates (construct validity). Criterion validity was partly achieved by predicting safety-relevant behavior on the job through three out of five safety culture scores. Results indicated a nonlinear relationship with safety culture scales. Overall the proposed concept proved reliable and valid with respect to safety culture development, providing a robust foundation for managers, safety experts, and operational and safety researchers to measure and further improve the level of safety culture within the air traffic management context.

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