Methodology for assessing structural noise annoyance in buildings caused by rail traffic. Comparative analysis between Portugal and Spain

Abstract

In recent years, the development of new construction materials and the publication of standards associated with new construction processes and evaluations have made it possible to construct buildings with high acoustic comfort. Alongside the construction of buildings with high sound insulation requirements, other aspects, such as structural noise, are becoming more important. This paper presents the evolution of the vibration and structural noise (ground-borne noise) descriptors in environmental impact studies derived from rail traffic in Portugal. However, these criteria are not regulated, but good practice guidelines are implemented by the management entities in order to contribute to the reduction of annoyance and, consequently, complaints from the nearby residents. In this context, a comparative analysis is carried out between the criteria used to assess lowfrequency noise annoyance in two neighboring countries (Portugal and Spain), to encourage the drafting of possible Portuguese regulations in this area.