PRM demand is pieced together from partial data — load factors in one place, schedules in another, last year's averages everywhere else. No one holds a single, current picture of assisted-travel demand across the whole airport, so every plan starts from a fragment rather than a fact.
"Do we actually have one live view of PRM demand across the whole airport — or six different guesses?"
Live demand picture, whole airport
Forecast accuracy
To first outcomes