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E. Pucher, J. Girard, J. Litzka, J. Haberl:
"Das Rollgeräusch von Pkw- und Lkw-Reifen auf lärmmindernden Fahrbahndecken";
Talk: 1. Symposium Reifen und Fahrwerk, Wien (invited); 2003-09-30; in: "1. Symposium Reifen und Fahrwerk", Institut für Verbrennungskraftmaschinen und Kraftfahrzeugbau, TU Wien, Wien (2003).

The SILVIA project aims at providing decision-makers with a tool allowing them to rationally plan traffic noise control measures. The main final product will be a "European Guidance Manual on the Utilisation of Low-Noise Road Surfacings" integrating low-noise surfaces with other traffic noise control measures including vehicle and tyre noise regulation, traffic management and road and building noise protection equipment. Low noise road surfaces can achieve substantial reductions in street traffic. However, in order to take advantage of the low noise surfaces, the integration of the surfaces with other noise abatement measures must be explored. This is accomplished in work package WP5 of the project.

The tire related objectives are:

. To describe noise reduction solutions taking into account the combination of pavement and tyre design.
. To address noise reduction possibilities by assessing other vehicle noise sources (e.g. reducing engine and drive train noise).

Preliminary examinations have demonstrated that the behaviour of the pavement referring to the tyre noise is different for passenger car tyres and the tyres of trucks. A road surface for low tyre noise of trucks might be different from a pavement for low passenger car tyre noise. The influence of operating conditions - cruise-by and accelerated pass-by as well as driving in a gradient and curve - on the noise will be investigated. Special regard will be drawn to the share of the drive train noise of important vehicle concepts.

The Austrian input to this EU project are the results and findings of the three year research umbrella "Low-noise road". In this framework specialists in car and tyre design and road construction at the Vienna University of Technology as well as private research institutes and companies investigated noise sources and collaborated on measures to reduce road noise.

Integrating low-noise surfaces with other abatement means, the results of the above effort will be used to produce a guidance manual on "Advanced Low-Noise Highway Design" to help decision-makers to rationally plan noise control measures taking into account full life-cycle costs.