This part of the SILENCE project considers the integral design and maintenance of lower noise road surfaces in urban areas. Particular attention is given to surfacing technologies that are appropriate for
use in congested streets containing road features such as inspection covers or suffer from frequent interventions due to sub-surface street works. Also new surface types will be developed for use on roads for medium to high speed traffic with speeds of 50 to 100 km/h, which are typical for city ring roads and city arterial roads carrying heavy traffic close to often populated living areas. The sub-project also includes developing technologies for ensuring that low noise surfaces maintain their cost/effective acoustic performance through their
lifetime. Equipment and procedures for determining and classifying the influence of road surface noise in the urban environment is important to optimise the use of low-noise pavements in an asset management evaluation of urban road networks and therefore play an
important part in the sub-project. As the materials technology is advancing around Europe, it is important the issue of novel materials are considered in the sub-project to further promote the development and use of new and innovative materials for low-noise roads.
The following surfaces were identified to have potential for further testing:
• Combination Gussasphalt
• Dense asphalt with high content of polymer-modified binder
• Block pavement improved by a cover of quiet poroelastic surface
• Porous asphalt
• Thin layers
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Traffic flow measures are usually implemented to improve traffic flow, traffic safety and/or to
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created: Steve Phillips, 11.09.2008 16:27:00 last modified: Steve Phillips, 15.04.2011 10:40:49
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