A recent scientific study has revealed that a balanced distribution of elderly passengers within the aircraft cabin, especially near emergency exits, could be a critical factor in reducing evacuation time during emergencies.
Aviation authorities recommend that all passengers should evacuate the aircraft and reach the ground within 90 seconds during emergencies; however, researchers argue that the continuous increase in the number of elderly travelers poses a challenge to achieving this goal.
Event Details
Previous studies have indicated that cognitive decline among some elderly individuals may affect their ability to perceive surrounding situations, leading to slower decision-making during evacuations. Scientists also point out that their declining motor skills may worsen under high-pressure conditions.
In a new study reported by the Independent, researchers conducted simulations of 27 different scenarios for evacuation procedures in the event of a fire in the engines of an Airbus A320, one of the most widely used narrow-body aircraft in the world.
The researchers compared three different cabin designs, with varying proportions of passengers aged over 60 years, along with different distributions of these passengers within the cabin.
Background & Context
The simulation results showed that the fastest evacuation scenario in a cabin accommodating 152 passengers, including 30 elderly passengers, was achieved when these passengers were evenly distributed throughout the cabin. However, this scenario took 141 seconds for all passengers to reach the ground, which is significantly longer than the time recommended by regulatory bodies in the aviation sector, according to the researchers, including a team from the University of Sydney.
The researchers wrote: "The high proportion of elderly passengers and poor seating arrangements lead to prolonged evacuation times and unbalanced use of exits." They emphasized that both the proportion of elderly passengers and their seating locations within the cabin affect exit usage, congestion patterns, and flow distribution.
Impact & Consequences
During the study, scientists created full-scale computer-aided design models of the Airbus A320 cabin before using the Pathfinder software, a standard industry tool for modeling evacuation processes, to simulate passenger behavior in the event of a dual-engine failure.
Chenyang Luka Chang, one of the study's authors, stated: "Although a dual-engine fire scenario is statistically rare, it falls within a broader category of dual-engine failures and critical emergencies in aviation." He noted that dual-engine failures and emergencies, such as the famous incident known as the Hudson River Miracle led by Captain Sully Sullenberger, can occur and lead to severe consequences.
Regional Significance
These findings are significant for airlines in the Arab region, where the number of elderly travelers is increasing. By understanding how passenger distribution affects evacuation processes, airlines can adopt more strategic seating arrangements to enhance safety without compromising operational efficiency.
In conclusion, scientists hope that these results will contribute to speeding up aircraft evacuation processes in the future by providing additional safety guidelines aimed at elderly passengers, thereby enhancing aviation safety levels.