
Airport Hubbing Level
A simple way to assess the hubbing level of an airport is to consider the percentage of connecting passengers. A low level is related to a small airport with no connecting flights, simply acting as an origin and a destination of a small amount of traffic. On the other side of the range, an airport with a high percentage (above 50%) of passengers connecting acts as an important hub in the air transport system. For instance, Atlanta is a pronounced air hub (Delta Airlines) with 57% of the passengers handled in 2000 using connecting flights.