**5. Conclusions**

In this chapter two different approaches for noise reduction have been described and discussed in detail. Finally, by comparing these approaches, it can be concluded that each one of them has its advantages, disadvantages and limitations. The final choice of noise reduction measure in most cases depends on the limitations regarding the location, cost, etc. It can be concluded that the best results regarding the reduction of noise pollution can be obtained by combining both described

#### *Noise and Environment*

approaches. The approaches work very well and effective together and, in that way, extend the limitations which occur when using only one approach.

Bearing in mind all of the aforementioned, urban planners, architects, doctors, psychologists as well as acoustic engineers should work together and benefit from each other's work with a common cause to improve the overall quality of life. By collaborating together, it is possible to reduce noise pollution and moreover improve the human health and well-being of the residents, especially the ones living and working in urban areas.
