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Quantitive Risk Assessment of Subsurface Well Collisions
Proceedings of European Petroleum Conference, 1990AbstractSubsurface separation criteria have been evolved empirically over the years. They are still largely based on un-tested assumptions about safety factors, comfort values and survey tool accuracy. A mathematical analysis of the probability of collision is presented.
J.L. Thorogood +3 more
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Evaluation of ship collision risk assessments using environmental stress and collision risk models
Ocean Engineering, 2019Abstract In Korea, ship collisions represent the majority of marine accidents and are substantially more likely in port areas where ship traffic is dense. To improve the safe navigation of vessels, the Korea Maritime Safety Audit (KMSA) has been conducting maritime traffic flow evaluations based on the Environmental Stress (ES) model since 2009.
Yunja Yoo, Jin-Suk Lee
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Collision risk: a new method for assessing and visualizing it
Acta Astronautica, 2003A new method to assess and visualize the collision risk for an orbiting spacecraft, based on a concept derived from Opik's studies of the close approaches between comets/meteoroids, and the planets of the Solar System, is presented. The space debris population is represented in a suitable parameter space with respect to the orbit of a possible target ...
Valsecchi GB, Farinella P, Rossi A
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Collision risk assessment of LNG filling barges
2017 4th International Conference on Transportation Information and Safety (ICTIS), 2017With the rapid development of inland LNG fuel-powered ships, the safety of LNG filling barges has aroused widespread concern. In order to assess the collision risk of LNG filling barge, using Kunz model to calculate collision probability under different conditions.
Lai Junhao +4 more
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The Assessment of Risk of Collision between Two Ships Avoiding Collision by Altering Course
2014Altering course is the most common and effective method employed by ships to avoid collision. Give-way vessels should take early and substantial action to avoid collision, the effectiveness of a course change is influenced by the distance between the two vessels.
Weifeng Li +4 more
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Assessing the interrelations of traffic collisions' risk factors
Proceedings of the Institution of Civil Engineers - Transport, 2018The enormous human and financial costs of traffic collisions mean that improving road safety by reducing the number of accidents is a major priority for transportation authorities around the world. One major prerequisite for reducing accidents is investigation of the risk factors for traffic collisions.
Mohammad Reza Elyasi +2 more
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Statistical mid-air collision risk assessment
2021This thesis describes current Detect and Avoid (DAA) equipment and communication methods among aircraft, Air Traffic Control (ATC) and Uninhabited Aerial Vehicle (UAV) Ground Control Stations (GCS). The limitations of current DAA systems are explored and analyzed to evaluate the effectiveness of each surveillance equipment combination.
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Study on Assessing Dynamic Risk of Ship Collision
ICTIS 2011, 2011To assess the risk of ship collision, especially the real-time risk, has played a more and more important role in the field of automatic collision avoidance, Intelligent Navigation System, and Decision-making Support for vessel traffic management in port and waterways.
YaLei Ren +3 more
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Quantitative Assessment of Urban Air Collision Risks
Journal of Air TransportationThe increasing adoption of remotely piloted aircraft systems in urban areas will require a quantitative assessment of collision risks with other air traffic. Current approaches for assessing the effectiveness of detect and avoid systems may have limitations in both accounting for the influence of traffic coordination in controlled urban airspaces and ...
Josh Chang +4 more
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Quantitative Collision Risk Assessment and Management
2019In engineering problems, collisions are accidents in which a moving body collides with another body that is either moving, stationary, or fixed. The collisions between two moving bodies can be grouped into three types associated with the direction of the collision, namely head-on (or bow) collisions, overtaking collisions, and crossing collisions. This
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