This thesis investigates the possibility of solving the problem of urban noise pollution by applying the principles of indoor acoustics in an outdoor environment. The City of Malmö, Sweden, was chosen due to its advanced world-leading noise research and dynamic urban setting. All of the necessary information, data and measurements were acquired through research and practical experimentation in close collaboration with different departments
and professionals at Malmö Municipal Council, LTH Lund
University and Airglass AB in Staffanstorp.

The findings in this work show, that the acoustic characteristics of the room created by the built environment in the studied affected areas is diffused
due to its large volume of air, and modal – enabling manifestations of standing waves in the mid- and lower frequency area of 100 Hz-1200 Hz.

By regarding the city as a whole, using its built environment, its infrastructure and varied landscapes as different elements all working together to prevent unwanted sound emissions, new acoustic treatment possibilities emerged, resulting in a fully-working, tailor-made outdoor aerogel absorbent prototype and the potential future development of urban noise elimination through the use of nanotechnology and destructive interference. However, extensive laboratory testing still needs to be concluded, to reveal the full extent of the viable applications within the field of acoustics.