Searched for: author%3A%22de+Roo%2C+F.%22
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Clairbois, J.-P. (author), de Roo, F. (author), Garai, M. (author), Conter, M. (author), Defrance, J. (author), Oltean-Dumbrava, C. (author), Fusco, I. (author)
The research QUIESST (QUIetening the Environment of Sustainable Surface Transport) successfully started in November 2009 for 36 months, its objectives and work schedule have already been presented at the INTERNOISE 2010 Congress. This paper will present the progress report at mid-term (18 months): the technical work packages are WP2 ...
conference paper 2011
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Salomons, E. (author), van Maercke, D. (author), Defrance, J. (author), de Roo, F. (author)
The Harmonoise model for predicting environmental noise is expected to provide a basis for the development of a future method for environmental noise mapping in Europe. In this article a detailed description is presented of all steps involved in a calculation with the Harmonoise sound propagation model. The description is restricted to point-to...
article 2011
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Reinink, F. (author), van Blokland, G. (author), de Roo, F. (author), Derksen, G.B. (author)
The CPX method (ISO/CD 11819-2) is regularly used for assessing the acoustic quality of road surface within the frame work of checking with compliance to contract requirements nd conformity-of-production. The reproducibility of the test procedure is investigated ith a Round Robin test in which 7 operators of CPX systems, coming from Belgium,...
conference paper 2011
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van der Eerden, F.J.M. (author), Lutgendorf, D. (author), de Roo, F. (author)
Within the EU FP7 QUIESST project, QUIeting the Environment for a Sustainable Surface Transport, a test method is being developed for the reflectivity of noise barriers. The method needs to account for a complex shape of barriers and the use of various types of absorbing materials. The performance of a barrier is to be measured in the near field...
conference paper 2011
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de Roo, F. (author), Dittrich, M.G. (author), van Beek, P.J.G. (author), Bosschaart, C. (author), Derksen. D.G., (author), de Kievit, M. (author)
The permissible sound level of road vehicles is part of the EU vehicle type approval legislation, as laid down in EU Directive 70/157/EEC [1] and in the UN-ECE Regulation No 51 [2] , which specifies the test method for the noise emission test. Since 1984 several studies [48] [49] [50] [51] [52] showed that the test method, that had been in force...
report 2011
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Clairbois, J.-P. (author), de Roo, F. (author), Garai, M. (author), Conter, M. (author), Defrance, J. (author), Oltean-Dumbrava, C. (author), Fusco, I. (author)
Since the early 80's, one models noise propagation, in the early 90's one started to standardize how to measure the intrinsic characteristics of manufactured noise barriers: in 1997, the EU funded ADRIENNE research ([1] and [2]) was a first step, but many problems still remained. Since years, all the noise propagation software are still modeling...
conference paper 2010
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TNO Industrie en Techniek (author), de Roo, F. (author), Telman, J. (author), van Blokland, G. (author), van Leeuwen, H. (author), Reubsaet, J. (author), van Vliet, W.J. (author)
conference paper 2009
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de Roo, F. (author), Salomons, E.M. (author), TNO Industrie en Techniek (author)
Common engineering models for aircraft noise, such as INM, yield noise levels by interpolation of Noise Power Distance (NPD) tables. In the European project Imagine (2004 - 2006), a different approach was proposed: the source is characterized by an emission spectrum and the received noise spectrum is calculated by subtracting the propagation...
conference paper 2008
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de Roo, F. (author), Gerretsen, E. (author), Borst, J. (author), TNO Industrie en Techniek (author)
As part of an evaluation study of European Directive 2000/14/EC relating to the noise emission by equipment for use outdoors, an environmental impact assessment was required to investigate the need for new or tighter noise limits. In contrast to other environmental noise sources, the operating location of outdoor machines is not fixed. As...
conference paper 2008
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Dittrich, M.G. (author), de Roo, F. (author), Gerretsen, E. (author), Burgess, A. (author), Beckmann, H.J. (author), Spellerberg, G. (author), Cellard, P. (author), Bowker, A. (author), TNO Industrie en Techniek (author)
The European Directive 2000/14/EC sets a requirement for noise labelling for the sound power level of 57 types of outdoor equipment, and sound power limits for 22 of these. In the NOMEVAL project the Directive and its amendment 2005/88/EC were evaluated, resulting in recommendations for an update of the equipment list, the noise limits and the...
conference paper 2008
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Defrance, J. (author), Salomons, E. (author), Noordhoek, I. (author), Heimann, D. (author), Plovsing, B. (author), Watts, G. (author), Jonasson, H. (author), Xuetao, Z. (author), Premat, E. (author), Schmich, I. (author), Aballea, F. (author), Baulac, M. (author), de Roo, F. (author), TNO Bouw en Ondergrond (author)
The Harmonoise reference model has been developed in order to predict long-term average sound levels in road and railway situations that are geometrically relatively simple but physically complex. The present paper describes all steps of calculations with this powerful model which includes several advanced numerical propagation methods to...
article 2007
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Mast, A. (author), van den Dool, T.C. (author), van der Toorn, J.D. (author), Watts, G. (author), de Roo, F. (author)
The aim of HARMONOISE Work Package 1.1 is the characterisation and modelling of road vehicle noise emission. Measurement of partial sources related to either the drive line or the tyre-road contact of moving vehicles and their contribution to the total vehicle pass-by noise is one of the research issues. TNO TPD has developed array measurement...
article 2003
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de Roo, F. (author), Koers, P.H.J. (author), Technisch Physische Dienst TNO - TH (author)
article 1991
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