| Worn tyres: New proposal C1 WGI @ Worn Molded SRTT |
| Reference Number: WT-28-02/Rev.1 |
| Meeting Sessions: 28th WT session (15 Sep 2021) |
| Document date: 17 Sep 21 |
| 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 29th Worn Tyres working group session |
| Reference Number: WT-29-01/Rev.1 |
| Meeting Sessions: 29th WT session (9 Nov 2021) |
| Document date: 08 Nov 21 |
| 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: Position on ETRTO Proposal for Correction Equations (Revision 2) |
| Reference Number: WT-29-02 |
| Submitted by: Japan |
| Meeting Sessions: 29th WT session (9 Nov 2021) |
| Document date: 08 Nov 21 |
| 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 Wet Grip Index Equation and Coefficients |
| Reference Number: WT-29-03 |
|
Worn Wet grip Index equation proposed by ETRTO on 25 October |
| Meeting Sessions: 29th WT session (9 Nov 2021) |
| Document date: 08 Nov 21 |
| 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 Post Processing task force status report |
| Reference Number: WT-29-04 |
| Meeting Sessions: 29th WT session (9 Nov 2021) |
| Document date: 08 Nov 21 |
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| Attendance list from the 29th Worn Tyres informal group session |
| Reference Number: WT-29-05 |
| Meeting Sessions: 29th WT session (9 Nov 2021) |
| Document date: 16 Nov 21 |
| 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 29th Worn Tyres informal group session |
| Reference Number: WT-29-06 |
| Meeting Sessions: 29th WT session (9 Nov 2021) |
| Document date: 16 Nov 21 |
| 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 28th Worn Tyres working group session |
| Reference Number: WT-28-05/Rev.1 |
| Meeting Sessions: 28th WT session (15 Sep 2021) |
| Document date: 24 Nov 21 |
| 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 |
| Wet Grip on Worn C1 tyres: Threshold definition approach considerations |
| Reference Number: WT-30-02 |
| Submitted by: ETRTO |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 26 Nov 21 |
| 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 30th Worn Tyres informal group session |
| Reference Number: WT-30-01 |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 26 Nov 21 |
| 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 30th Worn Tyres informal group session |
| Reference Number: WT-30-03 |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 30 Nov 21 |
| 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: Additional test campaign and necessary quantity of "molded SRTT worn" |
| Reference Number: WT-30-04 |
| Submitted by: JASIC |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 30 Nov 21 |
| 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 3 December 2021 Worn Tyres informal group follow-up discussion |
| Reference Number: WT-30-08 |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 02 Dec 21 |
| 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 for additional Worn Tyres group test campaign |
| Reference Number: WT-30-06 |
| Submitted by: JASIC |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 03 Dec 21 |
| 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 SRTT evaluation workplan |
| Reference Number: WT-30-07 |
| Submitted by: ETRTO |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 03 Dec 21 |
| 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 30th Worn Tyres informal group session |
| Reference Number: WT-30-05 |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 07 Dec 21 |
| 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 follow-up to the 30th Worn Tyres informal group session |
| Reference Number: WT-30-09 |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 07 Dec 21 |
| 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 from the follow-up to the 30th Worn Tyres informal group session |
| Reference Number: WT-30-10 |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 08 Dec 21 |
| 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 for Worn Tyres additional test campaign for minimum assessment |
| Reference Number: WT-30-11 |
| Meeting Sessions: 30th WT session (29 Nov 2021) |
| Document date: 08 Dec 21 |
| 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 31st Worn Tyres working group session |
| Reference Number: WT-31-01 |
| Meeting Sessions: 31st WT session (15 Dec 2021) |
| Document date: 13 Dec 21 |
| 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 31st Worn Tyres informal group session |
| Reference Number: WT-31-04 |
| Meeting Sessions: 31st WT session (15 Dec 2021) |
| Document date: 21 Dec 21 |
| 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 31st Worn Tyres informal group session |
| Reference Number: WT-31-02 |
| Meeting Sessions: 31st WT session (15 Dec 2021) |
| Document date: 21 Dec 21 |
| 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 additional text campaign for minimum assessment |
| Reference Number: WT-31-03 |
| Submitted by: JASIC |
| Meeting Sessions: 31st WT session (15 Dec 2021) |
| Document date: 21 Dec 21 |
| 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 |