In the best case of project designs, planners are encouraged to work with design engineers to examine trade-offs of roadway design and architectural design. Multiple techniques have been developed to address interior sound levels, many of which are encouraged by local building codes. Social activities may generate noise levels that consistently affect the health of populations residing in or occupying areas, both indoor and outdoor, near entertainment venues that feature amplified sounds and music that present significant challenges for effective noise mitigation strategies. Roadway noise and aircraft noise are the most pervasive sources of environmental noise.
The main areas of noise mitigation or abatement are: transportation noise control, architectural design, urban planning through zoning codes, and occupational noise control. Noise control or noise mitigation is a set of strategies to reduce noise pollution or to reduce the impact of that noise, whether outdoors or indoors.
