The SILVIA project, "Sustainable Road Surfaces for Traffic Noise Control", was initiated with the aim of making it possible to derive the full benefit from this kind of noise control approach. It was anticipated that this would be achieved by: - Initially solving the problems of evaluation of the actual noise reduction achieved using different road surface designs; - Evaluating the costs/benefits of different options; - Demonstrating how low noise surface technology can be integrated with other noise control measures; - Providing guidance on how the results can be applied in different member states. This Guidance Manual, produced as the final output of the project, is a compilation of the key research and findings from all of the component Work Packages. The Manual has been written taking into account the fact that it should ideally be possible to make use of the content without any particular expertise in the subject area. The main body of the text has therefore been drafted with the non-expert in mind.

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