1 TOWARDS A QUALITATIVE NOISE MAP BASED ON MEASUREMENT AND PERCEPTION, THE CASE OF ROSSIO SQUARE IN LISBON PACS: 43.50.Sr

In the field of sound cartography, the sound maps are excellent tools as decision-making aids, in particular for noise abatement purposes. However, the acoustical space is represented by values of noise that do not distinguish the sound sources. When these values result from only one determinant noise source, contributions from other less important local sources are usually disregarded. However, on the scale of the user, the human ear distinguishes the different sound sources and the successive acoustic plans of the soundscape. In complement to the sound maps, which cover a very broad urbanscale, a qualitative description of the soundscape is often necessary or useful for understanding people’s reactions to noise. This paper presents the first results of a research by using an analytical method based on the scale of human perception in the urban space