Probability of low altitude midair collision between general aviation and unmanned aircraft

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

32 Downloads (Pure)

Resumé

Unmanned aircrafts (UA) usually fly below 500 ft to be segregated from manned aircraft. However, while general aviation (GA) usually do fly above 500 ft in areas where UA are allowed to operate, GA will at times also fly below 500 ft. Consequently, there is a distinct risk of near-miss encounters as well as actual midair collisions (MACs). This work presents a model for determining this risk based on physical parameters of the aircraft and actual figures for the numbers of GA in a given airspace, as well as the probability of having GA below 500 ft. The aim is to achieve a prediction with a precision better than one order of magnitude relative to the true MAC rate value. The model is applied to Danish airspace and the MAC rate for unmitigated operations of UA is found to be approximately 10−6 MAC per flight hour. The model is particularly well suited for beyond visual line-of-sight operations, and is useful for UA operators for conducting risk assessment of planned operations as well as for regulators for determining appropriate operational requirements.
OriginalsprogEngelsk
TidsskriftRisk Analysis
Vol/bind39
Udgave nummer11
Sider (fra-til)2499-2513
Antal sider15
ISSN0272-4332
DOI
StatusUdgivet - nov. 2019

Fingerprint

Aviation
Aircraft
Risk assessment

Citer dette

@article{f6ee5459cf924f9f9ed624446326cd4a,
title = "Probability of low altitude midair collision between general aviation and unmanned aircraft",
abstract = "Unmanned aircrafts (UA) usually fly below 500 ft to be segregated from manned aircraft. However, while general aviation (GA) usually do fly above 500 ft in areas where UA are allowed to operate, GA will at times also fly below 500 ft. Consequently, there is a distinct risk of near-miss encounters as well as actual midair collisions (MACs). This work presents a model for determining this risk based on physical parameters of the aircraft and actual figures for the numbers of GA in a given airspace, as well as the probability of having GA below 500 ft. The aim is to achieve a prediction with a precision better than one order of magnitude relative to the true MAC rate value. The model is applied to Danish airspace and the MAC rate for unmitigated operations of UA is found to be approximately 10−6 MAC per flight hour. The model is particularly well suited for beyond visual line-of-sight operations, and is useful for UA operators for conducting risk assessment of planned operations as well as for regulators for determining appropriate operational requirements.",
keywords = "Midair collision, modeling, safety, unmanned aircraft",
author = "{La Cour-Harbo}, Anders and Henrik Schi{\o}ler",
year = "2019",
month = "11",
doi = "10.1111/risa.13368",
language = "English",
volume = "39",
pages = "2499--2513",
journal = "Risk Analysis",
issn = "0272-4332",
publisher = "Wiley-Blackwell",
number = "11",

}

Probability of low altitude midair collision between general aviation and unmanned aircraft. / La Cour-Harbo, Anders; Schiøler, Henrik.

I: Risk Analysis, Bind 39, Nr. 11, 11.2019, s. 2499-2513.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Probability of low altitude midair collision between general aviation and unmanned aircraft

AU - La Cour-Harbo, Anders

AU - Schiøler, Henrik

PY - 2019/11

Y1 - 2019/11

N2 - Unmanned aircrafts (UA) usually fly below 500 ft to be segregated from manned aircraft. However, while general aviation (GA) usually do fly above 500 ft in areas where UA are allowed to operate, GA will at times also fly below 500 ft. Consequently, there is a distinct risk of near-miss encounters as well as actual midair collisions (MACs). This work presents a model for determining this risk based on physical parameters of the aircraft and actual figures for the numbers of GA in a given airspace, as well as the probability of having GA below 500 ft. The aim is to achieve a prediction with a precision better than one order of magnitude relative to the true MAC rate value. The model is applied to Danish airspace and the MAC rate for unmitigated operations of UA is found to be approximately 10−6 MAC per flight hour. The model is particularly well suited for beyond visual line-of-sight operations, and is useful for UA operators for conducting risk assessment of planned operations as well as for regulators for determining appropriate operational requirements.

AB - Unmanned aircrafts (UA) usually fly below 500 ft to be segregated from manned aircraft. However, while general aviation (GA) usually do fly above 500 ft in areas where UA are allowed to operate, GA will at times also fly below 500 ft. Consequently, there is a distinct risk of near-miss encounters as well as actual midair collisions (MACs). This work presents a model for determining this risk based on physical parameters of the aircraft and actual figures for the numbers of GA in a given airspace, as well as the probability of having GA below 500 ft. The aim is to achieve a prediction with a precision better than one order of magnitude relative to the true MAC rate value. The model is applied to Danish airspace and the MAC rate for unmitigated operations of UA is found to be approximately 10−6 MAC per flight hour. The model is particularly well suited for beyond visual line-of-sight operations, and is useful for UA operators for conducting risk assessment of planned operations as well as for regulators for determining appropriate operational requirements.

KW - Midair collision

KW - modeling

KW - safety

KW - unmanned aircraft

UR - http://www.scopus.com/inward/record.url?scp=85068782397&partnerID=8YFLogxK

U2 - 10.1111/risa.13368

DO - 10.1111/risa.13368

M3 - Journal article

VL - 39

SP - 2499

EP - 2513

JO - Risk Analysis

JF - Risk Analysis

SN - 0272-4332

IS - 11

ER -