Historical Development
In the early years of aviation, all airplanes operated from relatively unimproved airfields. As aviation developed, the alignment of takeoff and landing paths centered on a well defined area known as a landing strip. Thereafter, the requirements of more advanced airplanes necessitated improving or paving the center portion of the landing strip. The term "landing strip" was retained to describe the graded area surrounding and upon which the runway or improved surface was constructed.
The primary role of the landing strip changed to that of a safety area surrounding the runway. This area had to be capable, under normal (dry) conditions, of supporting airplanes without causing structural damage to the airplanes or injury to their occupants. Later, the designation of the area was changed to "runway safety area," to reflect its functional role. The runway safety area enhances the safety of airplanes which undershoot, overrun, or veer off the runway, and it provides greater accessibility for firefighting and rescue equipment during such incidents. One of the difficulties is that overshooting aircraft don't always leave the runway straight off the end at relatively slow speed; they leave from the side of the runway (like the Congonhas A320 incident), they leave off the end at such a high speed that they would overrun any safety area (like the AF358 A340 incident in Toronto), or they land well short of the runway (like BA38 B777 incident at Heathrow).
Read more about this topic: Runway Safety Area
Famous quotes containing the words historical and/or development:
“Among the virtues and vices that make up the British character, we have one vice, at least, that Americans ought to view with sympathy. For they appear to be the only people who share it with us. I mean our worship of the antique. I do not refer to beauty or even historical association. I refer to age, to a quantity of years.”
—William Golding (b. 1911)
“The work of adult life is not easy. As in childhood, each step presents not only new tasks of development but requires a letting go of the techniques that worked before. With each passage some magic must be given up, some cherished illusion of safety and comfortably familiar sense of self must be cast off, to allow for the greater expansion of our distinctiveness.”
—Gail Sheehy (20th century)