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Document Title Tyre noise limits of EC/661/2009 and ECE R117: Evaluation based on sold tyres in the Netherlands
Reference Number GRB-60-08
Date
28 Aug 2014
(Document date: 2 Sep 2014)
Summary Memorandum to the Netherlands Ministry of Infrastructure and the Environment in response to its request for research into
  • the effect of the present tyre Regulations on the exterior noise levels of tyres
  • comparison of the tyre noise levels in the present distribution with the limit values defined in the tyre Regulations
  • definition of the levels of "present-day technology and ambitious technology on base of the distribution of levels found in the present tyre population".
Source(s) Netherlands and M+P
Rulemaking Area(s) UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance
Meeting(s)
Related Documents
GRB-60-08/Add.1 Shifts in tyre sound levels between 2007 and 2013 (Addendum)
GRB-61-18 ETRTO comments on GRB-60-08, GRB-60-12, GRB-60-14-Rev.1 and GRB-61-03
GRB-62-11 Proposal for amendments to the 02 series of amendments to Regulation 117 (superseded)
GRB-62-17 Comments on tyre noise performance and proposal for higher stringecy
Downloads
UNECE server .pdf format
Excerpts from session reports related to this document
GRB | Session 60 | 1-3 Sep 2014

14. The expert from the Netherlands presented the outcome of a study (GRB-60-08 and Add.1) of the shifts in tyre sound emission levels in his country between 2007 and 2013, i.e. before and after the revision of tyre noise limits in 2009 (EC/661/2009 and UN Regulation No. 117). The study addressed the most common C1, C2 and C3 tyres in terms of size and manufacturer. The reductions in tyre sound levels between 2007 and 2013 were found to be respectively 1.5, 1.4 and 1.1 dB(A) for C1, C2 and C3 tyres.