An effort is being made in this map study to draw the transmission of noise in the ” La Salut” neighbourhood of Barcelona, a higly touristic area with intense noise problem. Noise emission should be lessened according to the standards of a zero emission city. Therefore a noise map is the first necessary tool to be used. The linear sources (crowded streets with pedestrians and cars) generate noise in the form of waves which expand until they fade or until they bounce onto a barrier (buildings mostly). The source and the geometry of space is enough to define approximately the levels of noise in each point of the area. The levels are indicated by the different opacity of the same color. We should have in mind that the noise scale is not an analog one.To get a brief idea of that let`s say that 80 dB sound twice as loud as 70 dB. The proposals, to deal with noise pollution, can be many since the problem is identified.
