Chinese views concerning the test methodology for new limit values under UN Regulation No. 51 on vehicle noise.

GRB revisions to the proposal adopted by the Working Party on Brakes and Running Gear (GRRF) at its seventy-second session in order to add specific performance requirements for C2 snow tires.

Proposal to include wet grip adhesion provisions for C2 and C3 tyre categories.

GRB Proposal to amend UN Regulation 117 in order to allow the use of IS0 10844:2011 compliant test tracks, including transitional provisions and based on documents GRB/2012/15 and GRB/2012/18.

Presentation arguing for the establishment of minimum wet grip requirements for snow tires.

Agenda for the first meeting of the informal group created to draft a global technical regulation on audible warning systems for quiet vehicles (such as electric vehicles).

Presentation on research into audible warning response behavior by age group of the test subjects.

Second version of the ISO/CD 16254 “Acoustics – Measurement of minimum noise emitted by road vehicles” being circulated for comments. This document reflects comments made to the first version.

Presentation on NHTSA research to date.

Presentation on the scope and objectives of the European Commission’s Competitive Automotive Regulatory System for the 21st Century (CARS 21) program.

JASIC proposal of guiding principles for the formulation of the GTR on quiet road transport vehicles.

Flyer providing information on the 41st International Congress and Exposition on Noise Control Engineering (19-22 August 2012).

Presentation on the tire industry position concerning the implementation of new minimum requirements for wet grip on C2 and C3 tyres

Proposal submitted by ETRTO and prepared with the Netherlands, UK, and Poland to amend UNECE Regulation 117 in order to allow the use of test tracks complying to ISO 10844:2011, including transitional provisions.

Updated GRB revisions to the proposal for Supplement 2 to the 02 series of amendments to Regulation No. 117 adopted by the Working Party on Brakes and Running Gear (GRRF) at its seventy-second session in order to add specific performance requirements for C2 snow tires.

Document WP.29/2012/54 is the GRRF proposal for Supplement 2 to the 02 series of amendments to Regulation No. 117 in order to add specific performance requirements for C2 snow tires. The GRB has subsequently revised the proposal with regard to its noise provisions.

Table showing the status of the revisions to selected UN Regulations, including the new UN R127 (LED lighting) and R128 (Pedestrian safety). Revisions consolidate and update regulations as a single text.

(Duplicate version of the previous WP.29-158-09 removing some tracking marks.)
GRRF-edited version of the GRB amendments to document WP.29/2012/54 – Proposal for Supplement 2 to the 02 series of amendments to Regulation No. 117 (Tyres – Rolling resistance, rolling noise and wet grip).

Proposed revisions to the Annex 3 test procedures and interpretation of resulting data. This is based upon informal document GRB-56-06.

Proposal to update noise test-track requirements from ISO 19844:1994 to ISO 10844:2011 and incorporates transitional provisions to allow repaving of existing, non-compliant test tracks with the ISO 10844:2011 standards. This supersedes document GRB/2012/9.

Proposal by the Chair and Vice-Chair of GRB to allow the use of the test track complying with ISO 10844:2011 in a new series of amendments to the UN R117. This is based upon document GRB-56-20 from the previous GRB session.

Proposal from the Russian Federation to elaborate on the concept of tyre deceleration (dω/dt) in the test technology. The proposal is based on informal document GRB-56-02 from the previous GRB session.