Descrição

The purpose of this study is to determine the variability of noise levels associated with the
pass-by of the same type of train at a point, near a railway, and compare this variability with
the standard uncertainty, due to the operation of the source, established in ISO 1996-2:
2007, and in the document ―Determination of Lden and Lnigth Using Measurements: 2006‖,
from the European Work Group IMAGINE. With these results we can know the measurement
effort required to achieve a certain standard uncertainty.