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> > > MBBM Group ÀÇ ÀÚȸ»çÀÎ M+P Raadgevende (³×´ú¶õµå ¼ÒÀç, http://www.mp.nl) ´Â ÁÖ·Î µµ·Î±³Åë¼ÒÀ½¿¡ ´ëÇÑ ÄÁ¼³ÆÃÀ» ¼öÇàÇϰí Àִ ȸ»çÀÔ´Ï´Ù. > > µµ·Î ³ë¸éÀÇ ¼ÒÀ½À» ÃøÁ¤ÇÏ´Â Àåºñ¿¡ ´ëÇÑ ¸ñÀû°ú ±×¿¡ ´ëÇÑ ÀڷḦ ÷ºÎÇß½À´Ï´Ù. > > Within ISO working group TC43/SC 1/WG33 a new standard is being > prepared (ISO 11819-2: The Close-Proximity Method; CPX) which > describes an acoustic measurement method for road authorities, road > builders and research institutes. With this method, the acoustic properties of > road surfaces can be determined. In this method, special vehicles and near-field microphones are used. >