{"id":954,"date":"2012-07-27T08:40:09","date_gmt":"2012-07-27T08:40:09","guid":{"rendered":"https:\/\/www.akustik-forschung.de\/test\/?p=954"},"modified":"2025-05-06T15:17:06","modified_gmt":"2025-05-06T13:17:06","slug":"fahrbahn","status":"publish","type":"post","link":"https:\/\/www.akustikforschung.de\/en\/leistungen\/umweltakustik\/strassenlarm\/fahrbahn\/","title":{"rendered":"Road surface"},"content":{"rendered":"<p><a href=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_03_ws.jpg\" rel=\"gallery\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-5298 size-medium\" src=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_03_ws-300x240.jpg\" alt=\"Design, optimization and measurement of properties of road surface\" width=\"300\" height=\"240\" srcset=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_03_ws-300x240.jpg 300w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_03_ws-640x512.jpg 640w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_03_ws-440x352.jpg 440w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_03_ws.jpg 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Besides the noise of the vehicle engine, the sound source caused by the interaction of the road surface and the vehicle tires contributes significantly to the overall traffic noise level.<\/p>\n<p>Thereby, not only the properties of the tire but also the quality of the road surface play an important roll.<\/p>\n<p><!--contentpartdivider--><\/p>\n<h4>Design and optimization of properties of road surface<\/h4>\n<p>During the development of novel road surfaces, the company can support you with the design and the optimization of acoustic properties of the road surface, e. g.<\/p>\n<ul>\n<li>acoustic design of open porous asphalts, modeling by means of \u201ePhenomenological model\u201d as well as own developed models to describe the structure (input parameter: grading curve)<\/li>\n<li>vibrational design of rubber-modified road surfaces as well as road surfaces with intermediate elastic layer<\/li>\n<\/ul>\n<h4>Measurement of properties of road surface<\/h4>\n<p>The measurements carried out by the company to determine various properties of the road surface include:<\/p>\n<ul>\n<li>evaluation of noise emission of road surface by means of statistical pass-by method (<a href=\"https:\/\/www.akustikforschung.de\/en\/leistungen\/umweltakustik\/strassenlarm\/spb-statistisches-vorbeifahrt-verfahren\/\">SPB measurement<\/a>) according to EN ISO 11819-1 (determination of SPB index \/ DStrO value)<\/li>\n<\/ul>\n<ul>\n<li>evaluation of noise emission of road surface by measurement of tire\/road noise by means of close proximity method (<a href=\"https:\/\/www.akustikforschung.de\/en\/leistungen\/umweltakustik\/strassenlarm\/cpx-rollgerauschmessung\/\">CPX measurement<\/a>) according to DIN EN ISO 11819-2<\/li>\n<\/ul>\n<ul>\n<li>Testing of specifications and requirements of test tracks (especially texture and sound absorption coefficient) for measuring noise emitted by road vehicles and their tires according to DIN ISO 10844<\/li>\n<\/ul>\n<ul>\n<li>determination of sound absorption coefficient at core samples of open porous road surfaces in the laboratory according to DIN EN ISO 10534-2 with <a href=\"https:\/\/www.akustikforschung.de\/en\/produkte\/messgerate\/impedanzrohr-aed-1000-acoustitube\/\">impedance tube AcoustiTube<sup>\u00ae<\/sup><\/a><\/li>\n<\/ul>\n<ul>\n<li>determination of airflow resistance at core samples of open porous road surfaces in the laboratory on the basis of the direct-airflow method described in DIN EN 29053 (ISO 9053) with <a href=\"https:\/\/www.akustikforschung.de\/en\/produkte\/messgerate\/stromungswiderstandsmessgerat-aed-300-acoustiflow\/\">airfow resistivity meter AcoustiFlow<sup>\u00ae<\/sup><\/a><\/li>\n<\/ul>\n<ul>\n<li>determination of sound absorption coefficient of open porous road surfaces in situ according to DIN ISO 13472-1 with <a href=\"https:\/\/www.akustikforschung.de\/en\/produkte\/messgerate\/schallabsorptionsmessgerat-aed-800\/\">sound absorption measuring device AcoustiAdrienne<\/a><\/li>\n<\/ul>\n<ul>\n<li>determination of sound absorption coefficient of closed porous road surfaces in situ according to DIN ISO 13472-2 with <a href=\"https:\/\/www.akustikforschung.de\/en\/produkte\/messgerate\/impedanzrohr-aed-1000-acoustitube\/\">impedance tube AcoustiTube<sup>\u00ae<\/sup><\/a><\/li>\n<\/ul>\n<ul>\n<li>determination of effective specific airflow resistance \/ permeability between tire and road surface in situ on the basis of the static-airflow method described in DIN EN ISO 9053-1 with <a href=\"https:\/\/www.akustikforschung.de\/en\/produkte\/messgerate\/stromungswiderstandsmessgerat-aed-300-acoustiflow\/\">airfow resistivity meter AcoustiFlow<sup>\u00ae<\/sup><\/a>, e. g. as input parameter of calculation models for predicting the noise emission of road surfaces<\/li>\n<\/ul>\n<ul>\n<li>determination of texture of the road surface in situ by means of laser texture measuring system, e. g. as input parameter of calculation models for predicting the noise emission of the road surface<\/li>\n<\/ul>\n<ul>\n<li>determination of mechanical input impedance of the road surface in situ, e. g. as input parameter of calculation models for predicting the noise emission of the road surface<\/li>\n<\/ul>\n<ul>\n<li>determination of water permeability of open porous asphalts in situ to estimate the strength of the air-pumping effect as well as the weathering and the clogging of open porous asphalts<\/li>\n<\/ul>\n<ul>\n<li>Testing the lighting properties of asphalt (e.g. mastic asphalt layer in tunnels) according to the working paper on reflection properties of aggregates and surfaces made of asphalt<\/li>\n<\/ul>\n<p><!--contentpartdivider--><\/p>\n<div id=\"attachment_5252\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2013\/03\/messung_impedanz_01_ed_ws.jpg\" rel=\"gallery\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5252\" class=\"wp-image-5252 size-medium\" src=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2013\/03\/messung_impedanz_01_ed_ws-300x216.jpg\" alt=\"Measurement of acoustically relevant parameters of road surfaces in situ\" width=\"300\" height=\"216\" srcset=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2013\/03\/messung_impedanz_01_ed_ws-300x216.jpg 300w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2013\/03\/messung_impedanz_01_ed_ws-640x461.jpg 640w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2013\/03\/messung_impedanz_01_ed_ws-440x317.jpg 440w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2013\/03\/messung_impedanz_01_ed_ws.jpg 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-5252\" class=\"wp-caption-text\">Determination of mechanical input impedance at road surface in situ<\/p><\/div>\n<div id=\"attachment_5318\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_textur_fahrbahn_insitu_03_ed2_ws.png\" rel=\"gallery\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5318\" class=\"wp-image-5318 size-medium\" src=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_textur_fahrbahn_insitu_03_ed2_ws-300x163.png\" alt=\"Measurement of acoustically relevant parameters of road surfaces in situ\" width=\"300\" height=\"163\" srcset=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_textur_fahrbahn_insitu_03_ed2_ws-300x163.png 300w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_textur_fahrbahn_insitu_03_ed2_ws-640x348.png 640w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_textur_fahrbahn_insitu_03_ed2_ws-440x239.png 440w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_textur_fahrbahn_insitu_03_ed2_ws.png 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-5318\" class=\"wp-caption-text\">Texture of road surface determined by means of laser texture measuring system<\/p><\/div>\n<div id=\"attachment_12421\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2025\/05\/messung_stroemungswiderstand_fahrbahnoberflaeche_in_situ_beton_grinding_05_ed_ws.jpg\" rel=\"gallery\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-12421\" class=\"wp-image-12421\" src=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2025\/05\/messung_stroemungswiderstand_fahrbahnoberflaeche_in_situ_beton_grinding_05_ed_ws.jpg\" alt=\"Measurement of effective specific airflow resistance of road surfaces in situ\" width=\"300\" height=\"384\" \/><\/a><p id=\"caption-attachment-12421\" class=\"wp-caption-text\">Measurement of airflow resistance of concrete grinding<\/p><\/div>\n<div id=\"attachment_2677\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_01.jpg\" rel=\"gallery\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2677\" class=\" wp-image-2677 size-medium\" src=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_01-300x240.jpg\" alt=\"Measurement of acoustically relevant parameters of road surfaces in situ\" width=\"300\" height=\"240\" srcset=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_01-300x240.jpg 300w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_01-640x512.jpg 640w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_01-297x238.jpg 297w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_01-440x352.jpg 440w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/fahrbahn_01.jpg 678w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-2677\" class=\"wp-caption-text\">Take out of core sample of road surface for measurement of sound absorption coefficient, airflow resistance and elastic modulus in the laboratory<\/p><\/div>\n<p><div id=\"attachment_5317\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_wasserdurchlaessigkeit_01_ed_ws.jpg\" rel=\"gallery\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5317\" class=\"wp-image-5317 size-medium\" src=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_wasserdurchlaessigkeit_01_ed_ws-300x399.jpg\" alt=\"Measurement of acoustically relevant parameters of road surfaces in situ\" width=\"300\" height=\"399\" srcset=\"https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_wasserdurchlaessigkeit_01_ed_ws-300x399.jpg 300w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_wasserdurchlaessigkeit_01_ed_ws-366x487.jpg 366w, https:\/\/www.akustikforschung.de\/wp-content\/uploads\/2012\/07\/messung_wasserdurchlaessigkeit_01_ed_ws.jpg 451w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-5317\" class=\"wp-caption-text\">Determination of water permeability of open porous road surfaces in situ<\/p><\/div><\/p>","protected":false},"excerpt":{"rendered":"<p>Besides the noise of the vehicle engine, the sound source caused by the interaction of the road surface and the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5298,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[309,311,424,337,256,542,594,541,340,341,335,365,704,121,703,47,330,334,38,332,259,423,257,212,336,608,342],"class_list":["post-954","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-strassenlarm","tag-close-proximity-methode","tag-cpx","tag-cpx-messung","tag-din-en-iso-10534-2","tag-din-en-iso-11819-1","tag-din-en-iso-11819-2","tag-din-en-iso-9053-1","tag-din-iso-10844","tag-din-iso-13472-1","tag-din-iso-13472-2","tag-eingangsimpedanz","tag-fahrbahn","tag-gussaspahltschicht","tag-in-situ","tag-lichttechnische-eigenschaften","tag-messung","tag-opa","tag-rollgerauschmessung","tag-schallabsorptionsgrad","tag-sieblinie","tag-spb","tag-spb-messung","tag-statistische-vorbeifahrt","tag-stromungswiderstand","tag-textur","tag-tunnel","tag-wasserdurchlassigkeit","has-content-parts","content-parts-5"],"yoast_head":"<!-- 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