Measurement and prediction of urban noise spectrum at different heights and distances of the sound source.

Abstract

To elaborate noise maps, national and international directives indicate that urban noise measurements must be carried out 4 m high, so as to obtain the map by the method of direct measurements, or for the calibration of mathematical models that predict sound levels. As a continuation of research plans to be carried out in the Acoustic and Lighting Laboratory of the Commission of Scientific Research, Province of Buenos Aires (LAL—CIC), and in the Acoustic and Electroacoustic Laboratory, Engineering Faculty of the University of Buenos Aires (LACEAC—FI UBA), and in order to estimate the error that will be committed using the prediction method rather than the direct measuring method, urban noise measurements were taken in surrounding areas in a quick access to La Plata City, at different heights and different distances from the sound source.