As noise becomes more and more important as an environmental threat to human well-being, a growing amount of measures against noise have to be taken. Maps have been essential to communicate the spatial dissemination of noise for planning purposes since the beginning of the last century. But static paper maps lack the possibility to communicate the complex four-dimensional phenomenon of noise in an understandable way. In this article new visualization techniques such as dynamic display and acoustic rendering of the qualitative and quantitative dimensions of noise are presented. It is argued that both experts and novices involved in the urban planning process can profit from multimedia noise maps in a way that may lead to better decisions about which measures against noise will be taken.
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