“Each of these segments involves unique activities such as storing and collecting luggage, using seat shells while eating, using entertainment systems, standing in the aisle, and using the toilet,” the study authors wrote.
When an aircraft is on the ground, its air supply can come from several locations. This air is then mixed and distributed in the cabin. One source is the aircraft auxiliary power unit (APU) with the aircraft engine in operation. This process consumes fuel and can cause noise and emissions at the airport. Air can also be supplied from a ground source at the airport, e.g. B. via the jet bridge, which is referred to as preconditioned air or PCA. This means that the air is not circulating at the usual speed. Researchers suggest that airlines should use air from the APU for improved filtration.
“This is important because during this time people exert themselves, causing the airways to increase for a brief period, increasing the potential for infectious aerosols to be exhaled into the cabin,” the Harvard study notes.
The researchers also suggest that people bring smaller and fewer bags on board, which would reduce their exertion and reduce the encounter with other travelers who also throw things into the overhead bins.
Over the summer, Michael Schultz, engineer at the Institute for Logistics and Aviation at the University of Dresden in Germany, and Jörg Fuchte, senior specialist at the German aerospace company Diehl Aviation, discovered that the amount and type of hand luggage affected how hand luggage long everyone stood in line and how many close contacts there were. They concluded that reducing hand luggage would reduce the number of close contacts by two-thirds.
The planning process is usually smoother than boarding as people naturally move around in the order of the rows so travelers don’t have to worry as much. However, the jetway can be an area of risk if too many people are admitted without adequate distancing, several experts said. Travelers should stay aloof from others during this process, they said, and the aircraft’s ventilation systems should remain on.
“The planning process can be improved by keeping passengers in their seats until a crew member instructs them to leave,” suggest the Harvard researchers.