QUIESST: mid-term progress report

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 (Relationship near field / far field for sound reflection), WP3 (Improvement of the in-situ method for sound absorption and insulation measurement), WP4 (Noise performance evaluation: comparison of laboratory and in-situ methods), WP5 (Holistic optimization and global noise impact), WP6 (Sustainability). The achievements reached at the date of this paper will be stated, as well as the remaining steps toward the end of the research.