A Probabilistic Risk Assessment Framework for the Path Planning of Safe Task-Aware UAS Operations

Kaya, Uluhan C.; Dogan, Atilla; Huber, Manfred

doi:10.2514/6.2019-2079

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…Ren [2] developed a third-party risk index model for urban drone operations, using factors such as drone crashes, noise, privacy concerns related to on-board cameras, and ground environment as a basis. Kaya [3] devised a probabilistic risk assessment framework for path planning in populated areas. They analyzed drone failure modes and the probability distribution of their impacts on the ground, quantifying the risk of drones crashing into people, property, and ground traffic.…”

Section: Related Workmentioning

confidence: 99%

Research on risk map based on UAV safety operation indicators

Wang,

Ye,

et al. 2024

International Conference on Smart Transportation and City Engineering (STCE 2023)

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In the foreseeable future, the further civilian and mass utilization of unmanned aerial vehicles (UAVs) underscores the critical significance of researching UAV operational risks to ensure their safety. Currently, most UAV risk studies rely on traditional risk assessment methods, often evaluating operational risks based on singular or a few indicators. This study takes a comprehensive approach by considering various indicators related to UAV operational safety. It establishes a comprehensive indicator system that addresses aspects such as operational safety, reliability, and public acceptance. The study also provides both quantitative and qualitative risk assessment methods for these indicators. Additionally, the integration of a risk map offers a novel visualization technique for assessing UAV operational risks. This integrated approach aims to provide a secure foundation for the extensive future operation of UAVs in urban low-altitude airspace.

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Section: Related Workmentioning

confidence: 99%

Research on risk map based on UAV safety operation indicators

Wang,

Ye,

et al. 2024

International Conference on Smart Transportation and City Engineering (STCE 2023)

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“…On the contrary if Σ is 'too high', it will be considered that flying over the corresponding location is not feasible without requiring major changes in the flight trajectory, i.e. at least deviation outside the ground impact footprint, which is beyond the scope of this paper (see risk aware path planning methods for example [14] [15]). Therefore it is of interest to define some threshold δ Σ for the surface Σ.…”

Section: A Linear Repartition Of Risk Classesmentioning

confidence: 99%

Feasibility Analysis of UAV Operations for Monitoring of Infrastructure Networks: a Risk-based Approach

Bertrand

Raballand

Lala

et al. 2019

2019 International Conference on Unmanned Aircraft Systems (ICUAS)

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This paper proposes a method to analyze the feasibility of monitoring missions of infrastructure networks (eg. railways, roads, power lines, etc.) by Unmanned Aerial Vehicles (UAVs). The method consists in evaluating the risk at ground for people due to an UAV flying over each part of the network. Based on a risk categorization defined by probability and exposition time, several metrics are developed to analyze the feasibility of flights in terms of risk. More specifically, these metrics are related to the cumulative length of feasible flight segments and their connectedness. A decision making process is then defined to automatically classify all the lines of the network in a comprehensive and synthetic way. The whole method takes into account flight regulation and flight operation constraints as well as considerations relative to business interests in asset management of the infrastructure network. An illustration is proposed through a benchmark example on the French railway network.

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“…As a continuation of [17,18], risk map is enhanced by including layers such as population density, height of the ground obstacle, sheltering, and no-fly zone and used for various descent types such that ballistic descent, uncontrolled glide, parachute descent, and fly-away in [19]. Probabilistic risk assessment is studied in [20] by using probabilistic risk exposure map considering risks to people and property on the ground and UAS failure mode analysis. In [21], effects of mid-air collisions and ground risks to human safety are studied by only considering failures at mid-flight phase.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Risk Assessment and Utilization for Contingency Management of Future AAM System

Altun

Tsourdos

et al. 2023

AIAA AVIATION 2023 Forum

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This paper presents a risk assessment methodology to be used in the future Advanced Air Mobility (AAM) systems especially for supporting the planning phase and onboard contingency management solutions. Two types of dynamic risk maps are introduced as Contingency Risk Map that includes the probability of observing a contingency onboard and Risk Severity Map which covers various sources of data such as population density, a dense air traffic, obstacles, terrain, no-fly zones, and so forth. Contingency Risk Map is to quantify the probability of having a contingency and decide if the quantified probability is above the threshold. If the contingency risk probability is at unacceptable limit, Risk Severity Map assists to select a pre-defined secure emergency landing zone or non-secure emergency landing zone defined onboard. The developed risk assessment structure is tested through two different use cases. First one is about defining locations as vertiport alternatives based on the generated map, in case of a contingency ending up with an AAM vehicle to do emergency landing. Second case considers minimum risk onboard rerouting of an AAM vehicle to a secure/non-secure emergency landing zone under contingency management process. The main objective of this work is to build a system-wide contingency management concept for the AAM system by supporting with UTM services such as risk analysis assistance.

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A Probabilistic Risk Assessment Framework for the Path Planning of Safe Task-Aware UAS Operations

Cited by 5 publications

References 7 publications

Research on risk map based on UAV safety operation indicators

Research on risk map based on UAV safety operation indicators

Feasibility Analysis of UAV Operations for Monitoring of Infrastructure Networks: a Risk-based Approach

Comprehensive Risk Assessment and Utilization for Contingency Management of Future AAM System

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