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The SILVIA Guidance Manual on the implementation of low-noise road surfaces Workshop: locationand date Information Network on QUiet European road Surface.

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Presentation on theme: "The SILVIA Guidance Manual on the implementation of low-noise road surfaces Workshop: locationand date Information Network on QUiet European road Surface."— Presentation transcript:

1 The SILVIA Guidance Manual on the implementation of low-noise road surfaces Workshop: locationand date Information Network on QUiet European road Surface Technology

2 1 The SILVIA Guidance Manual The main output from the SILVIA project A summary of all of the key research and results from the project Written for the non-expert Freely downloadable from project website

3 2 Intended audience Highway Authorities Planning of traffic noise control measures Specification of the performance of surfaces Highway Contractors Meeting contract and product specifications Acoustic labelling of surface products Environmental Planners Improvement of noise predictions Development of Noise Action Plans

4 3 Overview of contents PART 1: Background information PART 2: Overview of existing low-noise surfaces PART 3: Specifying the performance of low-noise surfaces PART 4: Quantifying the benefits of low-noise surfaces PART 5: The performance of low-noise surfaces PART 6: Advice on low-noise surfaces

5 4 1: Background information The evaluation of noise An overview of the issues relating the physical measures used to describe noise with perception and annoyance Overview of vehicle and tyre/road noise A description of the various noise sources associated with vehicle noise emission and the important surface parameters necessary for the characterisation of a road surface Equal Loudness Contours Tyre noise generation mechanisms

6 5 2. Overview of existing surfaces Review of existing low-noise surfaces Overview of existing surfaces used in Europe Review of existing construction/ maintenance techniques An overview of available methods including cleaning & winter maintenance Prospects for further developments The opportunities for acoustic optimisation, structural durability improvement & new concept surfaces Stone Mastic Asphalt (SMA) Slip-form paver 3 rd generation rollable surface

7 6 3. Specifying the performance Overview of measurement methods: A summary of recognised methods used for obtaining measurement data and new methods developed within the project that are not yet recognised as standard. Certification procedures are also described Proposals for a noise classification procedure: The background to the SILVIA system and the procedures defined for acoustic labelling, conformity-of production assessment & routine monitoring Measuring mechanical impedance CPX measurement system SPB measurement

8 7 4. Quantifying the benefits Safety and sustainability benefits of low- noise road surfaces A summary of current knowledge on safety aspects and the effects of using the surfaces on factors such as water pollution, material use, recycling and fuel consumption Cost-benefit analysis Description of the application spreadsheet cost-benefit tool developed in the project Rolling resistance trailer Splash-spray on dense asphalt Splash-spray on porous asphalt

9 8 5. Performance of low-noise surfaces Factors affecting the performance of low- noise surfaces The influence of local conditions on surface performance, e.g. roadside developments, fleet composition, repairs and joints, weather effects, etc The integration of low-noise surfaces with other mitigation measures An overview of the influence of other types of noise mitigation measure on the performance of low-noise surfaces. Noise Barriers Traffic calming measures Surface expansion joints

10 9 6. Advice on low-noise surfaces Advice on the selection of low-noise surfaces Summary of the conclusions from the previous chapters of the manual and advice on other considerations, e.g. change in performance over lifetime Advice on the assessment of surfaces Summary of the procedures developed in SILVIA for COP assessment and routine monitoring Appendices:


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