Aircraft Noise Levels Comparison Essay

Aircraft Noise Essay

2880 Words12 Pages

It began with the first manned flight of an aircraft by the Wright brothers in 1903 in the town of Kitty Hawk, North Carolina, forever changing the face of transportation in not only the United States but indeed the world. The invention of the airplane allowed for the traveling of greater distances in a shorter period of time than had previously been allowed with rail travel, or horse drawn carriage as the more popular modes of transportation of the day. It really wasn’t until the late 1940s & 50s that passenger air travel began to take shape in the form we know it today, and since that time the number of air passengers has multiplied exponentially. In recent years alone passenger traffic increased 7.2% between 2003 and…show more content…

Decibel Readings for various Noise sources

Decibel Level Sound Source
175 Jet Rocket Launching
150 Jet Aircraft taking off
130 Machine Gun
125 Diesel engine
120 Threshold of physical pain
117 Jet Aircraft ramp
111 Motorcycle
110 Nightclub
104 Subway train
93 Electric food blender
81 Rush hour traffic
60-70 Normal conversation
40 Average residence
10 Breathing

It should be noted however, that the degree of such hearing loss depends on the noise level itself, the length of exposure to the individual and the hearer’s “individual susceptibility”. Interestingly enough a 3dB difference is noticeable to the average person, while a reduction of 10dB is perceived by the human ear as a 50% reduction of noise (Thomson, p.1).
Evidence suggests that after an initial adjustment to a particular noise environment, “people become less, rather than more, tolerant of continued exposure to aircraft noise (Stevenson, p. 17). This would seem to contradict with air industry supporters who have tried to paint the noise mitigation issue as a “nuisance”, something to adapt to. The U.S. Surgeon General, Dr. William H. Stewart, perhaps but it best when he stated in 1978 that “calling noise a nuisance is like calling smog an inconvenience. Noise must be considered a hazard to the health of people everywhere”.

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Era un punqui, - ответила Росио. Беккер изумился. - Un punqui. - Si.

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