GIS: AN ESSENTIAL TOOL FOR NOISE MAPPING
Keywords:
Noise mapping, acoustic software, GISAbstract
A noise impact assessment dependsprincipally on the calculation of noise maps, using a set of standard calculation to definethe contribution of different sources. A model for noise mapping constitutes an original software product incorporating a proper user’s interface, calculating module and data bases that provide the modellingprocess with source data. A fewcommercial software packages such Cadna-A, SoundPlan, IMMI and Predictor Lima are available for noise calculations. Although the above-mentioned noise software is fully-featured it also presents some limitsin the reiterationof tasks and in post-processing the results. Recentlymany challenges are related tothe integration of geographic information systems (GISs) with physicsmodels in different disciplines also in the acoustic field.GIS is a technology for handling geographic data in digital form. Itallows the pre-processing of data into a form suitable for analysis, it supports thespatial analysis and the postprocessing of results. This work is an overview in the existing techniques to organize the input data and automate tasks, the main advantages in linking GIS and noise software are also described.
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