Dutch research programs IPG and WnT

The Dutch “Noise Innovation Program Road Traffic” (IPG)
and the “Roads to the Future” Program (WnT)

The following two papers describing the Dutch IPG and WnT programs were presented at the Inter-Noise 2003 congress, as indicated below. The papers are published here with the kind permission of the authors, through Mr Erik Voss, Ministry of Transport, Public works and Water Management (DWW), The Netherlands. To order the book of proceedings from the congress, visit one of the following websites:
http://www.internoise2003.com/index.asp
http://www.ksnve.or.kr/english/2003internoise.htm

The 32nd International Congress and Exposition on Noise Control Engineering
Jeju International Convention Center, Seogwipo, Korea,
August 25-28, 2003

 _____________________________________________________________________________

Paper Number 1:

“The Dutch Noise Innovation Program Road Traffic (IPG)”

Ruud Nijland
Ministry of Transport, Public works and Water Management, The Netherlands
E-mail:
j.r.p.nijland@dww.rws.minvenw.nl

Erik Vos
Ministry of Transport, Public works and Water Management, The Netherlands

Jan Hooghwerff
M+P noise and vibration consultants, The Netherlands

ABSTRACT

In the Netherlands the Ministry of Transport, Public Works and Water Management and the Ministry of Environmental Affairs have initiated a sizeable research and development program to reduce road traffic noise. This program has to result noise reducing measurements that enable to reach strong strategic goals on the influence of road noise on inhabitants. The focus is on source oriented measures which are generally more cost-efficient than effect related measures.

 The Innovation Program, with a budget of more than 50 million euros, will address the following topics:

• investigation of the possible noise reductions by road surfaces, tyres and vehicles and enhanced noise barriers;

• scientific research into the knowledge needed to realize the reduction effects;

• development of the technologies and products to a level of general application in the national main road and vehicle population.

The program must result in a significant reduction of the noise production (including shielding effects) of the main road network system. In case of combinations of measures after 4 years of IPG for every location the technology and products for 8 dB(A) noise reduction will be feasible.

To download the full paper in pdf format (8 pages, incl 5 figures, 300 kB), click here:

TheDutch Noise Innovation Program Road Traffic (IPG)
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Paper Number 2:

“Results from the Dutch Noise Innovation Program Road traffic (IPG)
and Roads to the Future Program (WnT)”

 Authors: Rob Hofman and Jasper van der Kooij
Road and Hydraulic Engineering, Ministry of Transportation, Public Works and Water Institute
P.O. Box 5044, 260 GA Delft,Netherlands
E-mail:
r.hofman@dww.rws.minvenw.nl

ABSTRACT

In the Netherlands within the frame of both the Noise innovation program (IPG) and the Roads to the future program (WnT) recently test sections with very silent pavements have been constructed. IPG focuses on the short term and on the most silent roads currently available. No new technique or materials will be used. WnT focuses on the long term and on very silent roads preferably laid with innovative fast construction techniques.

The state-of-the art IPG-two layered porous tests sections should have a reduction of 6 dB(A) after construction and an average of 4 dB(A) noise reduction during the aimed entire life time of eight years. The futuristic 3rd generation silent pavements of WnT claim noise reduction of 6-10 dB(A) directly after construction. The acoustic (CPX, SPB and absorption spectra) and constructive properties (e.g. rutting and raveling resistance) of all the pavements are measured thoroughly directly after construction and during lifetime. In this presentation results of the described measurements will be shown.

To download the full paper in pdf format (8 pages, incl 2 figures and 2 tables, 60 kB), click here:

Results from the Dutch Noise Innovation Program Road traffic (IPG)
and Roads to the Future Program (WnT)

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