Conference_programme: 25.2 - Tyre / road noise
Lecture: effective vehicle noise reduction with two layer porous asphalt
Author(s): Van Blokland Gijsjan, Peeters Bert
Summary:
Two layer porous asphalt was developed in the Netherlands by M+P and contractor Heijmans about 30 years ago as a high-end noise-reducing surface. Since then, it has been thoroughly tested and improved in several Dutch as well as international studies. The road pavement exhibits a significant noise reducing performance, not only in new condition but also over its entire lifetime. It is now used as the primary source measure to reduce traffic noise on Dutch motorways, covering 1000 km (17%) of the road lanes and its area of application is extending to countries outside Netherlands..\nThis paper will give an overview of the construction principles, it will explain the mechanisms that account for the acoustic performance and it will distinguish between its effect on cars and trucks and for both rolling noise and powertrain noise. The paper presents data on the aging effects and will relate them to traffic conditions.\nThe paper will identify the current limitations in achieving further reduction and formulate developments that will result in further improvements in both new conditions and during its life time. \n\n
Corresponding author
Name: Dr Gijsjan van Blokland
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Country: Netherlands
