“Methods of ground-based safety nets improvement”

NATIONAL AVIATION UNIVERSITYInstitute of Airnavigation

Airnavigation Systems Department

Graduate workMASTER’S DEGREE THESIS

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“Методи вдосконалення наземних мереж безпеки”

PERFORMER: I.I. BULEZA

SUPERVISOR: G.F. ARGUNOV

Purpose: to offer enhancements for ground-based safety nets.

To research particularities of ground-based safety nets operation

To compare different approaches to visual representation of traffic collision alerts in different automated ATSs

To search for the drawbacks of existing approach to visual representation of short term collision alert

To provide countermeasures that can eliminate aforementioned drawbacks

Tasks:

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Topicality

Nowadays, considerable progress has been made in matters of flight safety. However, taking into

consideration vast increase of air traffic volumes, additional improvements are needed and can be

achieved. It is well known that majority of aviation accidents happen due to system errors associated with human factor. Therefore, any improvement

connected with this field would potentially increase overall safety of the whole aviation system.

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Ground-based safety nets

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Existing approach to visual representation of the conflictAUTOMATED ATS “INDRA”

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STCA decision advisory algorithm

Decision advisory for STCA

ACT111 ACT222 ACT333

Heading 190 270 270

Altitude 5000 5000 5300

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Decision advisory for STCA

ACT111 ACT222 ACT333

Heading 190 270 270

Altitude 5000 5000 5300

ACT111

ACT222

ACT333

ACT444

ACT555

Course

190 270 270 270 270

Altitude

5000

5000

5300

4700

5900

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Implementation benefits of STCA

resolution advisory

Decreased reaction time toward conflict resolution

Reduced number of separation infringements

Elimination of human factor related errors

Improvement of air traffic flows

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Conclusions

Taking into consideration that one of the main goals of all

processes in aviation system is to reach proper level of

flight's safety, while keeping positive income rate, cheap

solutions to improve existing services are very attractive.

New functional can be added to the existing short term

collision avoidance system without changing core

principles of its operation. Considering the rate of traffic

volumes increase, this upgrade is expected to have a

positive effect on safety of flights.

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Recommendations

To perform research of STCA warnings and

their resolution for different portions of

existing airspace

Where necessary, upgrade automated air

traffic systems with resolution advisory for

short term collision alert component

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Thank you for your attention.

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