ABSTRACT
Common sources of noise from ground-based operations at airports include engine maintenance run-ups, taxiing aircraft, operation of ground and auxiliary power units, preflight run-ups, takeoff roll and thrust reverses, movement of surface vehicles and some airport power plants. Noise levels have been measured by numerous researchers for a variety of airports and conditions. Of course, the takeoff roll produces the maximum levels of noise in the working area of the airport and in its vicinity because of the maximum engine thrust necessary for this stage. Table 5.1 compares differences between the average peak values of noise for characteristic operations in airport and the noise level during takeoff.
