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Working Party on Noise and Tyres

28-31 Jan 2020 | Geneva

The session will be held at the Palais des Nations, Geneva, starting at 2.30 p.m. on 28 January and concluding at 12.30 p.m. on 31 January 2020. The deadline for the submission of official working documents is 4 November 2019.

Agenda Item 5. (d) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

Documentation

Annotations

GRBP-71-20 UN R117/108/R109 Status report by the group of interested experts (GOIE ) on snow tyre provisions

GRBP-71-26 UN R117: Justification for document GRBP/2019/14

GRBP/2019/14 UN R117: Proposal for a Supplement to the 02 series of amendments

GRBP-71-05 UN R51 : Task Force Measurement Uncertainties (TF MU) guidelines to the objectives and rules of procedure

GRBP is invited to resume discussion on the proposal submitted by the group of interested experts on snow tyre provisions.

GRBP-71-29 UN R117 : Proposal to amend the Supplement to the 02 series of amendments

GRBP/2020/6 UN R117: Proposal for a Supplement to the 02 series of amendments

GRBP-71-05 UN R51 : Task Force Measurement Uncertainties (TF MU) guidelines to the objectives and rules of procedure

GRBP will address a draft amendment which has been tabled by the experts from Japan and ETRTO

GRBP-71-23 Working Group on Worn Tyres: Status report

GRBP-71-05 UN R51 : Task Force Measurement Uncertainties (TF MU) guidelines to the objectives and rules of procedure

GRBP will be briefed on the activities of the IWG on Wet Grip Performance of Tyres in a Worn State (IWG WGWT). GRBP may also wish to revert to the proposal of the expert from the European Commission to enlarge the scope of IWG WGWT with C2/C3 tyres.

GRBP-70-19 New traction definition

GRBP-70-20 Wet grip test method improvement for C1 tyres

GRBP-71-05 UN R51 : Task Force Measurement Uncertainties (TF MU) guidelines to the objectives and rules of procedure

Based on the considerations at the previous session (ECE/TRANS/WP.29/GRBP/68, paras. 17 and 18), GRBP may expect new proposals from ETRTO on improving the wet grip test method for passenger car tyres (C1) and on the new definition of “traction tyres”.

GRBP-71-06 UN R117 Standard Reference Test Tyre replacement

GRBP-71-05 UN R51 : Task Force Measurement Uncertainties (TF MU) guidelines to the objectives and rules of procedure

GRBP will be invited to consider the proposal by ETRTO to replace the current standard test tyre due to the phase out of the production and possible amendments to the tests due to the change in STT