Abstract
Maritime transportation is recognized to have advantages in terms of environmental impact compared to other forms of transportation. However, an increment in traffic volumes will also produce an increase in noise emissions in the surroundings for a greener source, as ports are frequently surrounded by urban areas. When more sources or higher noise emissions are introduced, the noise exposure of citizens increases, and the likelihood of official complaints rises. As a consequence, among the most demanding aspects of port management is effective noise management aimed at a reduction in the exposure of citizens while ensuring the growth of maritime traffic. At the same time, the topic has not been thoroughly studied by the scientific community, mostly because port areas are challenging from a noise management point of view; they are often characterized by a high degree of complexity, both in terms of the number of different noise sources and their interaction with the other main transportation infrastructure. Therefore, an effective methodology of noise modeling of the port area is currently missing. With regard to the INTERREG Maritime Program, the present paper reports a first attempt to define noise mapping guidelines. On the basis of the current state-of-the-art and the authors’ experiences, noise sources inside port areas can be divided into several different categories: road sources, railway sources, ship sources, port sources, and industrial sources. A further subdivision can be achieved according to the working operation mode and position of the sources. This classification simplifies actions of identification of the responsible source from control bodies, in the case that noise limits are exceeded or citizen complaints arise. It also represents a necessary tool to identify the best placing of medium/long-term noise monitoring stations. The results also act as a base for a future definition of specific and targeted procedures for the acoustic characterization of port noise sources.
Highlights
Maritime traffic has constantly increased in recent years, and, despite the effects of the recent pandemic, it is expected to continue its growth [1]
The first part of the present paper dealt with the analysis of the literature, combined with the experience gained by the authors in the INTERREG Maritime programme Italy-France 2014–2020
The results highlighted that the increased activities and/or territorial expansion of some ports has led to urban areas too close to noisy environments
Summary
Maritime traffic has constantly increased in recent years, and, despite the effects of the recent pandemic, it is expected to continue its growth [1] This will inevitably lead to an increase in noise emitted in the environment, if no proper management is established. Because the present literature is poor and still in its early stages, the projects need to act quickly, outlining the guidelines for acoustic mapping in port environments. Inhabited areas close to operational ones, many and different noise sources, connected road and rail traffic and the lack of specific regulations are the most frequent obstacles This analysis shows that a proper acoustical characterization of the main sources acting in ports is still an unsolved task because of the many different sources and the issues arising when measuring in such a complex environment with non-negligible background noise. Further studies aimed at defining specific measurement protocols of noise produced by sources would benefit the division into categories
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