Which boarding method gets everyone seated fastest?
Blocks of rows are called alternately from the back and the front, so two separate parts of the cabin load at the same time. It is the least door-sensitive of the zone methods.
Score: 100 = as fast as the faster of the Steffen and Cincin orderings on this flight and seed · 50 = one seeded random queue · below 50 = slower than that queue.
The rotating block fixes one specific weakness of back-to-front: everybody in a zone competing for the same bins. By alternating a rear block with a front block, the two groups in the aisle at any moment are far apart and out of each other's way. Passengers within a block still bunch up, so it does not reach the Steffen method, but it beats back-to-front consistently in the simulation.
Because it alternates ends, the method behaves almost the same whichever door is open. Try the aft-door and two-door plans and compare the spread of results with back-to-front, which swings from decent to dreadful depending on where the passengers come in.
Boarding a full aircraft takes on the order of tens of minutes, and the order in which passengers are called changes that more than anything the crew can do once people are aboard. This is an interactive airplane boarding simulator: pick a cabin, pick a boarding method, and watch every passenger walk in, stow a bag, squeeze past a seated neighbour and sit down, one simulated second at a time.
You can race up to eleven boarding methods side by side on identical passengers, including back-to-front zones, front-to-back, rotating blocks, WILMA (window, middle, aisle), reverse pyramid, the Steffen method, open seating, a realistic airline group order, and a custom rule you build yourself. Thirteen real cabin layouts are included, from a 72-seat ATR 72 turboprop to a 489-seat Airbus A380, along with single and multiple boarding doors, carry-on luggage load, families travelling together, priority boarding and passengers who ignore their group call.
The simulator also runs in reverse. Switch to Deplaning and everybody starts seated: compare row-by-row politeness with a free-for-all, aisle seats first, or alternate rows, and see that in this model the door onto the jet bridge, not the aisle, limits how fast a full cabin empties. My seat takes a seat number and tells you, for every strategy, when you would be called, how long you would stand in the aisle and when you would sit down. Sweep a setting varies occupancy, luggage, families or the share of passengers boarding out of turn across their whole range and charts where the ranking flips. Any race can be recorded as a video with the strategy names and clock captioned, and any result can be shared as a challenge link that dares the recipient to beat your time on the identical flight.
Every run is deterministic: the same seed and settings always produce the same passengers with the same bags and seats, so a difference in the result comes from the queue order alone. The full user guide explains every metric, the mathematics behind each method, and the assumptions the model makes.
This is an educational model rather than an airline operations tool. Published boarding research supports several of the broad patterns it reproduces; the exact times are outputs of this simulation.