Steps that can be taken to control noise pollution include erecting barriers to insulate noise producers, installing materials that absorb sound, dissipating noise-generating vibrations and placing physical breaks between a vibrating object and the hearer. Architectural acoustics use all of these techniques to protect residents from unwanted sound. In addition, roads and airports require special treatment to deaden noise pollution.
As eSchoolToday points out, tested methods for protecting neighborhoods from noise pollution include creating barriers by placing noisy machinery in soundproofed rooms or planting trees along roadways. Urban planning plays a key role in placing noisy industries, airports and major transportation hubs away from residential areas, as well as in regulating smaller sources of noise pollution such as public announcement systems, car horns and noisy vehicles.
Noise pollution from roads can be mitigated through careful design of the road, the materials used, better tire tread design and the erection of road barriers to limit road noise to the roadway itself. In addition, electric and hybrid cars help minimize road noise pollution.
The best ways to control noise pollution from airports focus on building airports away from residential districts, restricting flights to certain hours and redesigning flight paths. In addition, residential soundproofing can help control noise pollution for those living near an airport.