This group was authorized in 2019 to consider the performance of tyres after initial use. The broad concern is to ensure that somewhat worn tyres continue to comply with the requirements for new tyre approvals (i.e., no serious degradation in performance after initial use and before such wear as would require tyre replacement).
| Draft agenda for the 7th Worn Tyres working group session |
| Reference Number: WT-07-01 |
| Meeting Sessions: 7th WT session (17 Jan 2020) |
| Document date: 09 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn Tyres: Matrix for conducting testing of tyres |
| Reference Number: WT-07-02 |
| Meeting Sessions: 7th WT session (17 Jan 2020) |
| Document date: 16 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Participants list from the 7th Worn Tyres working group session |
| Reference Number: WT-07-04 |
| Meeting Sessions: 7th WT session (17 Jan 2020) |
| Document date: 20 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Minutes of the 7th Worn Tyres working group session |
| Reference Number: WT-07-03 |
| Meeting Sessions: 7th WT session (17 Jan 2020) |
| Document date: 20 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft status report of the Working Group on Worn Tyres |
| Reference Number: WT-08-02 |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 24 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft agenda for the 8th Worn Tyres working group session |
| Reference Number: WT-08-01 |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 24 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Attendance list from the 8th Worn Tyres Working Group session |
| Reference Number: WT-08-09 |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 28 Jan 20 |
| Click here to view the full document file |
| Minutes of the 8th Worn Tyres Working Group session |
| Reference Number: WT-08-08 |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 04 Feb 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| IWG for Wet Grip of Worn Tyres: Status report to 71st GRBP (January 2020) |
| Reference Number: WT-08-07 |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 27 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyre wet-grip performance: Ongoing tests status |
| Reference Number: WT-08-06 |
| Submitted by: UTAC |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 27 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Proposals on Trailer Method test campaign |
| Reference Number: WT-08-05 |
| Submitted by: JASIC |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 27 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres working group testing and validation matrix |
| Reference Number: WT-08-04 |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 27 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Proposal on winter tyres buff profile |
| Reference Number: WT-08-03 |
| Submitted by: JASIC |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) |
| Document date: 27 Jan 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Japan comments on report of the 8th Worn Tyres working group session |
| Reference Number: WT-09-01 |
| Submitted by: Japan |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 13 Feb 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn Tyres working group and EU timetables |
| Reference Number: WT-09-02 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 13 Feb 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Agenda for the 8th Worn Tyres working group session |
| Reference Number: WT-09-03/Rev.2 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 05 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Reference Tyre and Wet Grip Index calculation: Trailer Method test campaign |
| Reference Number: WT-09-08 |
| Submitted by: JASIC |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 05 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyre test engagement letter (template) |
| Reference Number: WT-09-14 |
| Submitted by: CATARC |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| China customs clearance for non-CCC tyres |
| Reference Number: WT-09-13 |
| Submitted by: CATARC |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Attendance list from the 9th Worn Tyres working group session |
| Reference Number: WT-09-12 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Click here to view the full document file |
| Worn tyres round-robin guidelines for testing centers-example |
| Reference Number: WT-09-10 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyre testing raw data template |
| Reference Number: WT-09-07/Rev.1 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Buffing report template for worn-tyre round robin testing |
| Reference Number: WT-09-06/Rev.1 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Logistical matrix for worn-tyre test procedure validations |
| Reference Number: WT-09-05/Rev.2 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Contacts for worn tyre validation test centres |
| Reference Number: WT-09-04/Rev.2 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| View full document file for more information |
| Click here to view the full document file |
| Worn tyres validation testing logistical principles |
| Reference Number: WT-09-09 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 09 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft minutes of the 9th Work Tyres Working Group session |
| Reference Number: WT-09-11 |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) |
| Document date: 11 Mar 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Example of individual test report |
| Reference Number: WT-10-02 |
| Submitted by: JASIC |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 09 Apr 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Example of aggregated test report |
| Reference Number: WT-10-03 |
| Submitted by: JASIC |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 09 Apr 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft agenda for the 10th Worn Tyres Working Group session |
| Reference Number: WT-10-01/Rev.1 |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 23 Apr 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres test program: Impact of COVID-19 for tyre logistics in Japan |
| Reference Number: WT-10-05 |
| Submitted by: JASIC |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 27 Apr 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Worn tyres and roughness measurement |
| Reference Number: WT-10-04 |
|
Assessment of ISO 4287-1997 and ISO 25178-2016 (Part 1:2016 or 25178 series) regarding the reference standard for the roughness measurement. |
| Submitted by: Germany |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 28 Apr 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn Tyres: Impact of COVID-19 on tyre industry and the informal group work plan |
| Reference Number: WT-10-06 |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 27 Apr 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Status of worn tyres work plan as of 27 April |
| Reference Number: WT-10-07 |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 27 Apr 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Worn tyre buffing method |
| Reference Number: WT-10-08 |
|
Tyre Industry preliminary worn tyre definition proposal with an updated proposal for the tyre buffing method. |
| Submitted by: ETRMA and ETRTO |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 27 Apr 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Minutes of the 10th Worn Tyre Working Group session |
| Reference Number: WT-10-09 |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 08 May 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Attendance list from the 10th Worn Tyres Working Group session |
| Reference Number: WT-10-10 |
| Meeting Sessions: 10th WT session (27 Apr 2020) |
| Document date: 08 May 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft agenda for the 11th Worn Tyres working group session |
| Reference Number: WT-11-01/Rev.1 |
| Meeting Sessions: 11th WT session (26 May 2020) |
| Document date: 25 May 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Tread depth measurement locations SRTT 16’’ |
| Reference Number: WT-11-02 |
| Meeting Sessions: 11th WT session (26 May 2020) |
| Document date: 25 May 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Life Test Study on New tyres versus Worn tyres |
| Reference Number: WT-11-03 |
| Submitted by: UTAC |
| Meeting Sessions: 11th WT session (26 May 2020) |
| Document date: 25 May 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Minutes of the 11th Worn Tyres working group session |
| Reference Number: WT-11-07 |
| Meeting Sessions: 11th WT session (26 May 2020) |
| Document date: 02 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: UTAC aggregated test report |
| Reference Number: WT-11-05 |
| Submitted by: UTAC |
| Meeting Sessions: 11th WT session (26 May 2020) |
| Document date: 02 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Status of the Worn Tyres informal group work plan |
| Reference Number: WT-11-04 |
| Meeting Sessions: 11th WT session (26 May 2020) |
| Document date: 02 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Participants list from the 11th Worn Tyres working group session |
| Reference Number: WT-11-06 |
| Meeting Sessions: 11th WT session (26 May 2020) |
| Document date: 02 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres working group testing and validation matrix |
| Reference Number: WT-08-04/Rev.2 |
|
Updated for the 12th WT working group session. |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) and 12th WT session (22 Jun 2020) |
| Document date: 15 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| List of contact test centers |
| Reference Number: WT-09-04/Rev.3 |
|
Updated for the 12th Worn Tyres working group session. |
| Meeting Sessions: 9th WT session (5-6 Mar 2020) and 12th WT session (22 Jun 2020) |
| Document date: 15 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| View full document file for more information |
| Click here to view the full document file |
| Worn tyres: Buffing procedures preliminary experience |
| Reference Number: WT-12-03 |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 21 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Status of the Worn Tyres Working Group work plan as of 18 June |
| Reference Number: WT-12-02 |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 21 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: ETRTO response on question from IDIADA regarding tread depth measurement in shoulder zone |
| Reference Number: WT-12-04 |
| Submitted by: ETRTO |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 21 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| IDIADA worn tyres aggregated testing report |
| Reference Number: WT-12-06 |
| Submitted by: IDIADA |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 22 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft agenda for the 12th Worn Tyres working group session |
| Reference Number: WT-12-01/Rev.1 |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 21 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Participants list from the 12th Worn Tyres Working Group session |
| Reference Number: WT-12-05 |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 23 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Minutes of the 12th Worn Tyres Working Group session |
| Reference Number: WT-12-07 |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 23 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: IDIADA aggregated testing data with task force comments |
| Reference Number: WT-12-06/Rev.1 |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 23 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Life Test Study on New Tyres vs Worn Tyres: France |
| Reference Number: WT-12-08 |
| Submitted by: UTAC |
| Meeting Sessions: 12th WT session (22 Jun 2020) |
| Document date: 25 Jun 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Aggregate testing reports |
| Reference Number: WT-13-02 |
|
Validation testing report template for consideration during the 13th informal group session. |
| Submitted by: IDIADA |
| Meeting Sessions: 13th WT session (20 Jul 2020) |
| Document date: 05 Jul 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Agenda for the 13th Worn Tyres working group session |
| Reference Number: WT-13-01 |
| Meeting Sessions: 13th WT session (20 Jul 2020) |
| Document date: 06 Jul 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Status of the Worn Tyres working group work plan |
| Reference Number: WT-13-03 |
| Meeting Sessions: 13th WT session (20 Jul 2020) |
| Document date: 22 Jul 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn Tyres working group draft status report to GRBP |
| Reference Number: WT-13-04 |
| Meeting Sessions: 13th WT session (20 Jul 2020) |
| Document date: 22 Jul 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Participants list from the 13th Worn Tyres working group session |
| Reference Number: WT-13-05 |
| Meeting Sessions: 13th WT session (20 Jul 2020) |
| Document date: 22 Jul 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Minutes of the 13th Worn Tyres working group session |
| Reference Number: WT-13-06 |
| Meeting Sessions: 13th WT session (20 Jul 2020) |
| Document date: 22 Jul 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft agenda for the 14th Worn Tyres working group session |
| Reference Number: WT-14-01 |
| Meeting Sessions: 14th WT session (10 Sep 2020) |
| Document date: 29 Aug 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Aggregated testing report |
| Reference Number: WT-14-02 |
| Meeting Sessions: 14th WT session (10 Sep 2020) |
| Document date: 09 Sep 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Test data collection tables |
| Reference Number: WT-14-03 |
| Submitted by: ETRTO |
| Meeting Sessions: 14th WT session (10 Sep 2020) |
| Document date: 10 Sep 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Attendance list of the 14th Worn Tyres working group session |
| Reference Number: WT-14-06 |
| Meeting Sessions: 14th WT session (10 Sep 2020) |
| Document date: 23 Sep 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Minutes of the 14th Worn Tyres working group session |
| Reference Number: WT-14-05 |
| Meeting Sessions: 14th WT session (10 Sep 2020) |
| Document date: 15 Sep 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Work plan of the Worn Tyres working group |
| Reference Number: WT-14-04 |
| Meeting Sessions: 14th WT session (10 Sep 2020) |
| Document date: 15 Sep 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres informal group data collection template |
| Reference Number: WT-15-03 |
| Meeting Sessions: 15th WT session (22 Oct 2020) |
| Document date: 17 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Agenda for the 15th Worn Tyres informal group session |
| Reference Number: WT-15-01 |
| Meeting Sessions: 15th WT session (22 Oct 2020) |
| Document date: 19 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres working group testing and validation matrix |
| Reference Number: WT-08-04/Rev.1 |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) and 15th WT session (22 Oct 2020) |
| Document date: 20 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Guidelines for testing phase of the informal group work plan |
| Reference Number: WT-15-05/Rev.2 |
| Meeting Sessions: 15th WT session (22 Oct 2020) |
| Document date: 21 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Attendance list from the 15th Worn Tyres informal group session |
| Reference Number: WT-15-07 |
| Meeting Sessions: 15th WT session (22 Oct 2020) |
| Document date: 23 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft report of the 15th Worn Tyres working group session |
| Reference Number: WT-15-06 |
| Meeting Sessions: 15th WT session (22 Oct 2020) |
| Document date: 23 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres data collection template (final version) |
| Reference Number: WT-15-08 |
| Meeting Sessions: 15th WT session (22 Oct 2020) and 16th WT session (19 Nov 2020) |
| Document date: 23 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Proposal for data sharing process |
| Reference Number: WT-15-04/Rev.1 |
| Submitted by: ETRTO |
| Meeting Sessions: 15th WT session (22 Oct 2020) |
| Document date: 23 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Status of the Worn Tyres informal group work plan |
| Reference Number: WT-15-02/Rev.1 |
| Meeting Sessions: 15th WT session (22 Oct 2020) |
| Document date: 23 Oct 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres working group testing and validation matrix |
| Reference Number: WT-08-04/Rev.3 |
| Meeting Sessions: 8th WT session (27-28 Jan 2020) and 16th WT session (19 Nov 2020) |
| Document date: 16 Nov 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| SRTT 16" tread depth wear evolution measurements |
| Reference Number: WT-16-03 |
| Meeting Sessions: 16th WT session (19 Nov 2020) |
| Document date: 16 Nov 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft agenda for the 16th Worn Tyres working group session |
| Reference Number: WT-16-01/Rev.1 |
| Meeting Sessions: 16th WT session (19 Nov 2020) |
| Document date: 19 Nov 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Draft minutes of the 16th Worn Tyres working group session |
| Reference Number: WT-16-06 |
| Meeting Sessions: 16th WT session (19 Nov 2020) |
| Document date: 21 Nov 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Attendance list from the 16th Worn Tyres working group session |
| Reference Number: WT-16-05 |
| Meeting Sessions: 16th WT session (19 Nov 2020) |
| Document date: 21 Nov 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Status of the Worn Tyres working group work plan |
| Reference Number: WT-16-02 |
| Meeting Sessions: 16th WT session (19 Nov 2020) |
| Document date: 21 Nov 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Worn tyres: Proposals for sharing of the buffing reports |
| Reference Number: WT-16-04 |
| Submitted by: JATMA |
| Meeting Sessions: 16th WT session (19 Nov 2020) |
| Document date: 19 Nov 20 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |