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Document Title	Proposal for amendments to the 02 series of amendments to Regulation 117 (presentation)
Reference Number	GRB-62-11/Add.1
Date	24 Aug 2015
Summary	Presentation in support of the proposal to increase the stringency of tyre noise limits from 1 November 2020.
Source(s)	Netherlands
Rulemaking Area(s)	UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance
Meeting(s)	GRB \| Session 62 \| 1-3 Sep 2015 7. Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)
Related Documents
	GRB-62-11		Proposal for amendments to the 02 series of amendments to Regulation 117 (superseded)
	GRB-66-03		Proposal for amendments to the 02 series of amendments to Regulation No. 117 (superseded)
	GRB-67-08		UN R117: Assessment of the Netherlands proposal
Downloads
UNECE server	.pdf format		.pptx format
Excerpts from session reports related to this document
GRB \| Session 62 \| 1-3 Sep 2015			12. The expert from the Netherlands presented a study (GRB-62-09 and Add.1) on noise emission from the Original Equipment Manufacturer (OEM) tyres of a specific size which were found to be around 1 dB(A) lower than the one from replacement tyres of the same size. The expert, thus, proposed to further reduce the limit values for OEM tyres in the 02 series of amendments to Regulation No. 117 (GRB-62-11 and Add.1). 13. The expert from Switzerland expressed his support for the general direction of the Dutch proposal. The experts from Germany and EC were of the view that, at this stage, it would be premature to tighten the tyre noise limits of Regulation No. 117. The expert from France called for a holistic approach to this issue. The experts from ETRTO and OICA expressed doubts about the representativeness of the tyre sample used in the Dutch study. The expert from ETRTO also delivered comments on the proposal for amendments to Regulation No. 117 (GRB-62-17). Finally, GRB invited all experts to further study the Dutch proposal and decided to revert to this issue at the next session. 12. The expert from the Netherlands presented a study (GRB-62-09 and Add.1) on noise emission from the Original Equipment Manufacturer (OEM) tyres of a specific size which were found to be around 1 dB(A) lower than the one from replacement tyres of the same size. The expert, thus, proposed to further reduce the limit values for OEM tyres in the 02 series of amendments to Regulation No. 117 (GRB-62-11 and Add.1). 13. The expert from Switzerland expressed his support for the general direction of the Dutch proposal. The experts from Germany and EC were of the view that, at this stage, it would be premature to tighten the tyre noise limits of Regulation No. 117. The expert from France called for a holistic approach to this issue. The experts from ETRTO and OICA expressed doubts about the representativeness of the tyre sample used in the Dutch study. The expert from ETRTO also delivered comments on the proposal for amendments to Regulation No. 117 (GRB-62-17). Finally, GRB invited all experts to further study the Dutch proposal and decided to revert to this issue at the next session.