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ENVIRONMENTAL IMPACT OF INFRASTRUCTURE A23 - MAP OF NOISE
Abstract
According to the European Directive 2002/49/EC, EU members have to draw up a strategic noise map for all agglomerations with more than 250000 inhabitants and for all major airports, roads and railways. A study of environmental impact assessment on Highway A23 in the stretch between Abrantes пїЅ Guarda, conducted under the environmental noise, has as objective the characterization of the current situation, i.e. representation of senses in sound levels surrounding the infrastructure, based on modelling and acoustic data collection. The development of a map of road traffic noise is a complex process that requires a large amount of data of different nature, and which are not always available. In the process of drafting, many factors, simplification, and variances approaches contribute to the uncertainty in the result. A mistake in the result of the noise map generates an incorrect amount of population exposed, as well as the preparation and implementation of action plans inadequate or wrong.
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