Aircraft evacuations through Type-III exits: II. Effects of individual subject differences.

McLean, G A; George, M. H.

doi:10.1037/e424572004-001

Cited by 5 publications

(5 citation statements)

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“…(3) At different speeds, the deceleration rules of the pitch/roll angles changed, which was mainly reflected in the value of the speed reduction ratio. (4) The pitch/roll angles affected the interval time between a passenger and the preceding passenger. The larger the angle, the larger the safety interval time between individuals.…”

Section: Discussionmentioning

confidence: 99%

“…However, in most contributions, the cabin's overall evacuation time and evacuation efficiency under a conventional situation were considered. Mclean and others studied the impact of aircraft emergency exits' features on the evacuation time and factors such as seat configuration, channel width, group motivation, and individual characteristics on the exit evacuation efficiency [4][5][6][7]. Muir et al researched the impact of smoke and motivation on the evacuation time [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study on Individual and Group Evacuation of Passengers from an Aircraft Cabin in the Pitch/Roll State

Zhang,

Lin,

Feng

et al. 2023

Aerospace

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After an aircraft is forced to land, it is easy for it to become stuck in a tilt state of pitch or roll. The pitch/roll state of the aircraft cabin is a critical factor affecting the safe evacuation of the cabin. However, evacuation therein deserves more attention. In this research, an aircraft cabin simulator was developed to study the impact of pitch and roll on the individual and group evacuation speed. The values of the pitch angle θ and roll angle γ considered in the experiments were both 0, ±5, and ±10°. It was found that the average individual passenger speed could be attenuated in an aircraft cabin in pitch or roll conditions, but a pitch angle less than 0 had an acceleration effect on the walking mode. The results of the group evacuation experiments showed that, in addition to affecting the speed of individual passengers, the pitch/roll state also affected the evacuation interval time between a passenger and the preceding one. In addition, the linear fitting models introduced in this paper, which linked the motion of individual and group passengers, could predict the movement speeds accurately. This study provides a valuable benchmark for simulating the evacuation of an aircraft cabin and a reference for the safety design of actual aircraft cabins.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Study on Individual and Group Evacuation of Passengers from an Aircraft Cabin in the Pitch/Roll State

Zhang,

Lin,

Feng

et al. 2023

Aerospace

View full text Add to dashboard Cite

show abstract

“…Algunos estudios se concentran en la influencia de las distintas formas de asiento en las tasas de evacuación a través de diferentes tipos de salida [21,45,42,41] y han servido para la propuesta de nuevas normas.…”

Section: Ensayos De Evacuaciónunclassified

“…Otros consideran la influencia de las características demográficas en las actuaciones de evacuación [45,20,40] y como puede esperarse, la edad, la corpulencia y el género (en ese orden) producen los efectos más importantes [40].…”

Section: Ensayos De Evacuaciónunclassified

“…En todos los casos, los modelos consideran las características personales tales como edad, corpulencia y género, que se sabe que afectan significativamente a los resultados [7,40]. No es difícil incluir algunos factores tales como la presencia de equipaje de mano de cierto tamaño, pero otros aspectos tales como los vínculos familiares (marido-mujer o padre-hijo) y sociales (colegas o compatriotas) no pueden nunca ser cuantificados [33].…”

Section: Modelización Y Simulación De La Evacuaciónunclassified

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Modelización computacional del ensayo de evacuación de emergencia de aviones de transporte

Hedo Rodríguez

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Risky situations appear in the operation of transport airplanes in which emergency evacuation needs to be performed, very seldom fortunately. The effectiveness of this operation is crucial to save the lives of the occupants.To ensure a certain level of security, the certification of these aircrafts requires successfully fulfilling the so-called evacuation test. It is performed to determine the time needed to completely evacuate the plane in a single real-scale demonstration, with authentic occupants and in specific conditions stipulated by the regulations. The evacuation time must be below 90 seconds, although there are exceptions.The information provided on the random variable evacuation time by a single trial of this type is obviously not significant, besides the risk to participants that such experiments carry and the costs and delays added to the certification process. Recently, certification authorities admit partial replacement of demonstration test by reasoned calculations, to determine several component times of the evacuation test.To help in the understanding of this process, the Thesis follows a rigorous theoretical analysis, a detailed modeling and, last but not least, a computer simulation tool, whose purpose is threefold: 1. To validate the proposed model. 2. To predict significant times of the evacuation test. To replace the test in whole or in part.The analysis consists of identifying the relevant elements of the evacuation test domain and of capturing those attributes or properties that serve to define and distinguish its diverse elements. Such elements can be classified into three different types in the proposed domain model: Stage (airplane, land and evacuation means).Human factor (authorities, applicant company and occupants). Operating rules of the test (regulations and common practices).The solution model abstracts what is strictly relevant of domain model and simplifies the information to be used, with the aim of obtaining a simple and sufficiently precise model about the phenomenon. Simplifying assumptions made in the solution model cover various aspects: geometry, time, movement, behavior, etc. As an example, the pathways orthogonality is adopted, which greatly helps in the treatment of evacuation geometry.To compare and evaluate both real and simulated evacuation tests a theory on evacuation tests assessment is developed. It includes the definition of a set of test quality parameters computable using the test results.

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The effect of airline passenger anthropometry on aircraft emergency evacuations

et al. 2020

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Aircraft evacuations through Type-III exits: II. Effects of individual subject differences.

Abstract: This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Government assumes no liability for the contents or use thereof.

Cited by 5 publications

References 0 publications

Experimental Study on Individual and Group Evacuation of Passengers from an Aircraft Cabin in the Pitch/Roll State

Experimental Study on Individual and Group Evacuation of Passengers from an Aircraft Cabin in the Pitch/Roll State

Modelización computacional del ensayo de evacuación de emergencia de aviones de transporte

The effect of airline passenger anthropometry on aircraft emergency evacuations

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