Memphis International Airport in the early 1970s. Photo courtesy of Ed Uthman/Wikimedia Commons
In the very early days of commercial aviation, designers used train stations as inspiration for airport terminals. But the unique demands of the industry eventually led to a departure from the train station template. Individual hold rooms distributed along concourses replaced marshalling passengers from large, central waiting rooms as the norm. This increased the horizontal spread of the facility which, at larger airports, led to the adoption of various mechanical means of conveyance to shorten the travel times and distances for passengers. These systems de-coupled the adjacency demands of aircraft boarding from those of ticketing and baggage claim with resulting impacts on terminal design. This, more than any other factor, has influenced the horizontal layout of the terminal building. But what about the vertical?
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