Akustik - Messung des Einflusses von Straßenoberflächen auf Verkehrsgeräusche - Teil 1: Statistisches Vorbeifahrtverfahren (ISO 11819-1:2023); Deutsche Fassung EN ISO 11819-1:2023
Kurzreferat
The emission of road traffic noise greatly depends on road surface characteristics, notably on texture and porosity; the latter due to the flow resistivity of the air voids. Both these characteristics influence the generation of tyre/road noise and, in addition, the porosity can influence the emission of sound, particularly when the emission takes place close to the surface. Power unit noise, which is usually generated at a greater height above the road surface than tyre/road noise, may also be affected during emission by the porosity characteristics of the road surface. These effects lead to differences in sound levels, associated with a given traffic flow and composition, from different road surfaces of up to 15 dB, which can have a substantial impact on the environmental acoustic quality alongside a road. It is therefore important to be able to measure this influence by a standardized method and to arrive at a quantitative ranking of road surfaces with respect to traffic noise. This document offers such a method, the objective of which is to satisfy a need expressed by road planners, road administrators, contractors, manufacturers of so-called "low-noise surfaces" and by other parties concerned with the prediction and control of road traffic noise.
Beginn
2018-12-13
WI
00227487
Geplante Dokumentnummer
DIN EN ISO 11819-1
Projektnummer
00101076
Zuständiges nationales Arbeitsgremium
Zuständiges europäisches Arbeitsgremium
CEN/TC 227/WG 5 - Oberflächeneigenschaften
Zuständiges internationales Arbeitsgremium
Ersatzvermerk
Vorgesehen als Ersatz für DIN EN ISO 11819-1:2002-05
Norm-Entwurf
Akustik - Messung des Einflusses von Straßenoberflächen auf Verkehrsgeräusche - Teil 1: Statistisches Vorbeifahrtverfahren (ISO/DIS 11819-1:2021); Deutsche und Englische Fassung prEN ISO 11819-1:2021
2022-02
Kaufen beim Beuth Verlag