Presentation in support of the proposal to increase the stringency of tyre noise limits from 1 November 2020.

ETRTO comments raising concerns over the validity of the Dutch dataset used to support the proposal for higher tyre-noise stringency.

Proposal to specify that conditioning of exhaust or silencing systems is required only in cases where the fibrous materials are in contact with exhaust gases because there is no possibility for the dispersion of fibrous materials under any other condition.

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

Proposal for corrections to the draft Supplement 5 to the regulation. The draft supplement aims to refine definitions, removes the “AWD” abbeviation for “audible warning device” to avoid confusion with its more common use for “all wheel drive”, adds T category agricultural vehicles to the scope, modifies some administrative communications, and proposes three-direction acoustic measurements.

Comments on the draft Supplement 5 to the UN R28. The draft supplement aims to refine definitions, removes the “AWD” abbeviation for “audible warning device” to avoid confusion with its more common use for “all wheel drive”, adds T category agricultural vehicles to the scope, modifies some administrative communications, and proposes three-direction acoustic measurements.

Proposal to amend the draft Supplement 5 to the UN R28. The draft supplement aims to refine definitions, removes the “AWD” abbeviation for “audible warning device” to avoid confusion with its more common use for “all wheel drive”, adds T category agricultural vehicles to the scope, modifies some administrative communications, and proposes three-direction acoustic measurements.

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

Correction of two minor reference errors contained in the proposal for Supplement 2 to the 04 series of amendments to Regulation No. 41 which was adopted during the March 2015 session of WP.29.

The current text of UN R41 provides an allowance that increases the noise limit value by 1 dB(A) for motorcycles tested only in second gear under Annex 3. This allowance expires on 1 January 2017. IMMA proposes to extend this allowance until 1 January 2018 in response to the delayed implementation of UN R41-04 in the EU (2016 instead of planned 2014).

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.

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

Presentation by Dr. Edward C. Bell, Professional Development and Research Institute on Blindness, Louisiana Tech University.

Presentation supporting documents GRRF/2015/25, /29, and /32 proposing to:
a) Align definitions and content of UN tyre regulations;
b) Include a definition of “manufacturer” extracted from the resolution “R.E.3”;
c) Adopt a common definition and use of the terms “Manufacturer’s name”, “Brand name”, “Trademark”, “Trade description” and “Commercial name” and their links; and
d) Add information in the certificate to enable approval authorities to more easily understand the products the certificate addresses.

Document GRRF/2015/27 proposes to modify the marking requirements to replace PSI with kilopascals (“kPa”). The intent is to harmonize the pressure indication and avoid confusion between UN Regulation No. 54 and US FMVSS 119 or FMVSS 139. This proposal would allow for the use of kPa markings in place of PSI prior to the 1 January 2018 transition date.

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 of research conducted by the World Blind Union and National Federation of the Blind in the United States to validate the effectiveness of the proposed minimum sound levels for quiet vehicles at 10 and 20 km/h. The researchers concluded that the proposed sounds levels do not add significantly to the detectability of an approaching vehicle by a blind pedestrian and that internal combustion engine vehicles were detected substantially sooner than quiet vehicles equipped with the proposed acoustic vehicle alerting system (AVAS).

World Blind Union comments opposing the current provisions of the draft UN Regulation on quiet vehicle minimum sound levels, especially with regard to the effectiveness of the AVAS parameters, inclusion of “pause button”, and absence of stationary (“idling”) vehicle sound requirement.

Proposal to modify the marking requirements to replace PSI with kilopascals (“kPa”). The intent is to harmonize the pressure indication and avoid confusion between UN Regulation No. 54 and US FMVSS 119 or FMVSS 139. The proposal would also change the measurement units for drum speed from min^-1 to km.h^-1 in alignment with the requirements with other tyre regulations and align the wording in Annex 7, Appendix 1 with the text of the Regulation.

Proposal to:
a) Align definitions and content with the other tyre regulations (UN Regulations Nos. 30, 54, 75 etc.);
b) Include a definition of “manufacturer” extracted from the resolution “R.E.3”;
c) Adopt a common definition and use of the terms “Manufacturer’s name”, “Brand name”, “Trademark”, “Trade description” and “Commercial name” and their links; and
d) Add information in the certificate to enable approval authorities to more easily understand the products the certificate addresses.