If pax loading/unloading was performed closer to the middle of the fuselage, say at the first emergency exit, rather than at the very front, then people entering the plane could split into two, moving forward and aft thereby potentially halving the number of people blocking the aisles (depending on the forward/aft split ratio). On the 757 300 there seems to be enough gangway access at the first emergency exit. Perhaps this practice is already routine, I have always boarded at the very front.
Last edited by Cool Guys; 16th Jan 2022 at 04:51.