Proposal to correct the Annex 7, paragraph 3.1. “Determination of the anchor point for each gear ratio” and a calculation symbol in paragraph 3.2.1 “Calculation of the slope of the regression line for each gear”.

This document contains the consolidated text of proposals for the 03 series of
amendments to Regulation No. 51, as adopted by GRB at its sixtieth and sixty-first
sessions:
- ECE/TRANS/WP.29/GRB/58, para. 5, based on ECE/TRANS/WP.29/GRB/2014/5,
as amended by Annex III to ECE/TRANS/WP.29/GRB/58;1 and
- ECE/TRANS/WP.29/GRB/59, paras. 8-10, based on ECE/TRANS/WP.29/GRB/2015/3 and Corr.1, as amended by Annex III to ECE/TRANS/WP.29/GRB/59.

Following a decision of GRB, this consolidated text will be submitted to the June
2015 session of WP.29 for consideration and possible adoption.

Reference prepared by the WP.29 secretariat

This proposal further refines and clarifies the 03 series of amendments to UN R51 from Informal Working Group on UN Regulations Nos. 51 and 59. The 03 series was proposed in document GRB/2014/5 which was amended and then adopted by the Working Party on Noise during its 60th session. The proposal includes special provisional limits for Chinese micro-vehicles which are being reviewed by Japan.

Table of potential areas for future GRB work prepared during an informal meeting held in Paris during 2-3 July 2015.

Proposal to clarify the wording of the 03 series of amendments to UN R51 as adopted by the World Forum in June 2015 (document WP.29/2015/62). The adopted wording could lead to the interpretation that sound levels measured on the left side of the vehicle are mixed by calculation with sound levels measured on the right side of the vehicle. The proposed new wording clarifies that the overall sound emission is assessed individually per vehicle side.

Presentation on China’s international noise standards working group activities and program for future development of vehicle noise and silencing system durability requirements.

Presentation on Japanese vehicle noise activities, including alignment with UN Regulations and subsequent abolition of certain current Japanese regulatory requirements (e.g. cruising noise, etc.).

Presentation of Japan’s plans for phasing in UN R41, UN R51 (Phase 2, but not Phase 3 limits), and UN R117 requirements.

Paper describing the development and application of a method for determining benefits of tyre noise reduction efforts in terms of the number of people impacted.

Presentation on the Dutch-developed methodology for assessing the impact of changes to tyre and vehicle noise standards.

Presentation on low-noise pavements and the PERSUADE (PoroElastic Road
SUrface for Avoiding Damage to the Environment) project.