Wet Grip on Worn Tyres (WT) reports to GRBP
Documents
12 Jan 2022 Agenda for the 32nd Worn Tyres task force session WT-32-01/Rev.1 2022-01-12
12 Jan 2022 Worn Tyre Post Processing task force status report WT-32-02 2022-01-12
12 Jan 2022 Worn Tyres: JASIC Review on ETRTO Proposed Equations (JASIC) WT-32-03 2022-01-12 JASIC
12 Jan 2022 EU Tyre Industry proposal for Wet grip on Worn tyres (C1) (ETRMA and ETRTO) WT-32-04 2022-01-12 ETRMA ETRTO
12 Jan 2022 Worn Tyres: Timeline proposal for additional test campaign (ETRTO) WT-32-05 2022-01-12 ETRTO
13 Jan 2022 Attendance list from the 32nd Worn Tyres working group session WT-32-06 2022-01-13
19 Jan 2022 Report of the 32nd Worn Tyres working group session WT-32-06/Rev.1 2022-01-19
18 Jan 2022 Agenda for the 33rd Worn Tyres working group session WT-33-01 2022-01-18
19 Jan 2022 Worn tyres: Proposal for C1 wet-grip threshold (ETRMA and ETRTO) WT-33-02 2022-01-19 ETRMA ETRTO
19 Jan 2022 Worn tyres: Proposal for additional test campaign timeline (ETRTO) WT-33-03 2022-01-19 ETRTO
19 Jan 2022 Worn tyres: Comments on threshold proposal and timeline for additional assessment (JASIC) WT-33-04 2022-01-19 JASIC
25 Jan 2022 Attendance list from the 33rd Worn Tyres informal group session WT-33-05 2022-01-25
25 Jan 2022 Minutes from the 33rd Worn Tyres informal group session WT-33-06 2022-01-25
25 Jan 2022 Worn tyre wet grip threshold provisions pursuant to the 33rd Worn Tyres informal group session WT-33-07 2022-01-25
26 Jan 2022 Agenda for the 34th Worn Tyres informal group session WT-34-01/Rev.1 2022-01-26
26 Jan 2022 Status report from the Worn Tyres Post-Processing task force WT-34-02 2022-01-26
26 Jan 2022 UN R117: Draft amendments to document WP.29/2022/11 on worn tyres WT-34-03 2022-01-26
26 Jan 2022 Threshold proposal for C1 wet grip of worn tyres (Revision 2) (ETRMA and ETRTO) WT-34-04 2022-01-26 ETRMA ETRTO
26 Jan 2022 Proposal for worn tyre track friction range (ETRTO) WT-34-05 2022-01-26 ETRTO
27 Jan 2022 UN R117: Proposal to amend document WP.29/2022/11 on worn tyres (Japan) WT-34-06 2022-01-27 Japan
2 Feb 2022 Agenda for the 35th Worn Tyres informal group session WT-35-01/Rev.1 2022-02-02
1 Feb 2022 Tender for a study on wet grip of worn tyres (IDIADA) WT-35-02 2022-02-01 IDIADA
2 Feb 2022 Concept proposal for C2 and C3 worn tyres wet grip (ETRTO) WT-35-03 2022-02-02 ETRTO
2 Feb 2022 Input on C1 tyre track friction range (ETRTO) WT-35-04 2022-02-02 ETRTO
4 Feb 2022 Position on worn tyre track friction properties (JASIC) WT-35-05 2022-02-04 JASIC
4 Feb 2022 UN R117: Proposal to amend document GRBP/2022/11 on worn tyres WT-35-06 2022-02-04
4 Feb 2022 UN R117: Concept proposal for addressing C2 and C3 worn tyres wet grip WT-35-07 2022-02-04
4 Feb 2022 Attendance list from the 35th Worn Tyres working group session WT-35-08 2022-02-04
4 Feb 2022 Worn Tyres working group status report to GRBP-75 WT-35-09 2022-02-04
4 Feb 2022 Proposal for revised Worn Tyres working group terms of reference WT-35-10 2022-02-04
4 Feb 2022 Report from the 35th Worn Tyres working group session WT-35-11 2022-02-04
1 Mar 2022 Agenda for the 36th Worn Tyres working group session WT-36-01 2022-03-01
4 Mar 2022 Worn tyres: Evaluation of Molded SRTT-worn (JASIC) WT-36-03 2022-03-04 JASIC
8 Mar 2022 Worn Tyres working group work plan WT-36-04 2022-03-08
8 Mar 2022 Attendance list from the 36th Worn Tyres working group session WT-36-05 2022-03-08
8 Mar 2022 Report of the 36th Worn Tyres working group session WT-36-06 2022-03-08
1 Mar 2022 Worn tyres: Data collection compilation SRTT 2mm WT-36-02/Rev.2 2022-03-01
18 Apr 2022 Agenda for the supplemental session to the 37th Worn Tyres working group session WT-37-01 2022-04-18
5 Apr 2022 Agenda for the 37th Worn Tyres working group session WT-37-01/Rev.1 2022-04-05
5 Apr 2022 Worn WGI C1 tyre cluster definition proposals for UHP, Legal Race and All Terrain (ETRTO) WT-37-02 2022-04-05 ETRTO
18 Apr 2022 Japan comments on worn tyre cluster definitions (JASIC) WT-37-02 2022-04-18 JASIC
5 Apr 2022 Worn tyres: C2 and C3 regulatory text proposal (ETRTO) WT-37-03 2022-04-05 ETRTO
21 Apr 2022 Attendance list from the supplemental meeting of the 37th Worn Tyres working group session WT-37-03 2022-04-21
18 Apr 2022 Attendance list from the 37th Worn Tyres working group session WT-37-04 2022-04-18
21 Apr 2022 Updated work plan of the Worn Tyres working group WT-37-04 2022-04-21
18 Apr 2022 Minutes of the 37th Worn Tyres working group session WT-37-05 2022-04-18
21 Apr 2022 Minutes of the supplemental meeting of the 37th Worn Tyres working group session WT-37-05 2022-04-21
25 Apr 2022 Agenda for the 28th Worn Tyres working group WT-38-01 2022-04-25
2 May 2022 Attendance list from the 38th Worn Tyres working group session WT-38-02/Rev.1 2022-05-02
29 Apr 2022 Updated work plan for the Worn Tyres working group WT-38-03 2022-04-29
29 Apr 2022 Minutes from the 38th Worn Tyres working group session WT-38-04 2022-04-29
13 May 2022 Agenda for the 39th Worn Tyres working group session WT-39-01 2022-05-13
13 May 2022 Worn tyres cluster definition and threshold (ETRTO) WT-39-02 2022-05-13 ETRTO
13 May 2022 Threshold proposal for C2 and C3 tyres wet grip in worn state (ETRTO) WT-39-03 2022-05-13 ETRTO
19 May 2022 Attendance list from the 39th Worn Tyres working group session WT-39-04 2022-05-19
19 May 2022 Report from the 39th Worn Tyres working group session WT-39-05 2022-05-19
25 May 2022 Agenda for the 40th Worn Tyres working group session WT-40-01/Rev.1 2022-05-25
23 May 2022 UN R117: Worn Tyres drafting group proposal for C1-C2-C3 tyres (04 series of amendments) WT-40-02 2022-05-23
23 May 2022 UN R117: Proposal for Standard Reference Test Tyre (SRTT) in worn state (Japan) WT-40-03 2022-05-23 Japan
25 May 2022 Proposal for C2/C3 tyre wet grip in worn state (Japan) WT-40-04 2022-05-25 Japan
1 Jun 2022 Attendance list from the 40th Worn Tyres working group session WT-40-05 2022-06-01
1 Jun 2022 Minutes from the 40th Worn Tyres working group session WT-40-06 2022-06-01
7 Jun 2022 Agenda for the 41st Worn Tyres working group session WT-41-01 2022-06-07
3 Jun 2022 UN R117: Proposal to add tread depth measurement prescriptions in Annex 9 (ETRTO) WT-41-02 2022-06-03 ETRTO
8 Jun 2022 UN R117: Draft proposal for 04 series of amendments on C1, C2, and C3 tyres WT-41-03/Rev.1 2022-06-08
8 Jun 2022 UN R117: Consolidated drafting group proposal for Supplement 1 to the 03 series of amendments WT-41-04/Rev.1 2022-06-08
9 Jun 2022 Worn tyres: C1 cluster definition and threshold proposals for “UHP” and “All Terrain” (ETRTO) WT-41-05/Rev.1 2022-06-09 ETRTO
9 Jun 2022 Attendance list from the 41st Worn Tyres working group session WT-41-06 2022-06-09
9 Jun 2022 Minutes from the 41st Worn Tyres working group session WT-41-07 2022-06-09
10 Jun 2022 Agenda for the 42nd Worn Tyres working group session WT-42-01 2022-06-10
10 Jun 2022 UN R117: Draft text for 03 series Supplement 3 include tread depth measurement WT-42-02 2022-06-10
10 Jun 2022 UN R117: Draft text for 04 series amendments on worn C1, C2, and C3 tyres (EC) WT-42-03 2022-06-10 EC
10 Jun 2022 Attendance list from the 42nd Worn Tyres working group session WT-42-04 2022-06-10
10 Jun 2022 Minutes from the 42nd Worn Tyres working group session WT-42-05 2022-06-10
4 Jul 2022 Agenda for the 43rd Worn Tyres working group session WT-43-01 2022-07-04
30 Jun 2022 Worn Tyres Post-Processing subgroup status report WT-43-02 2022-06-30
7 Jul 2022 Minutes of the 43rd Worn Tyres working group session WT-43-03 2022-07-07
7 Jul 2022 Attendance list from the 43rd Worn Tyres working group session WT-43-04 2022-07-07
7 Jul 2022 Worn tyres: Standard reference test tyre data collection compilation WT-43-05 2022-07-07
12 Jul 2022 Worn tyres: Proposal for 2023 additional test campaign matrix (JASIC) WT-44-01 2022-07-12 JASIC
20 Jul 2022 Agenda for the 44th Worn Tyres working group session WT-44-02 2022-07-20
26 Jul 2022 Worn tyres: Comments on proposal for 2023 additional test campaign work plan (ETRTO) WT-44-03 2022-07-26 ETRTO
20 Jul 2022 Small group discussion on usage purpose clustering WT-44-04 2022-07-20 Report on discussions concerning the definition of a specific cluster ‘tyre with a nominal aspect ratio equal to or less than 40, a section width equal to or higher than 235 mm and suitable for speeds equal to or greater than 300 km/h’ by indicating the intended use of such tyres.
27 Jul 2022 UN R117: Draft text for informal document to amend document GRBP/2022/22 WT-44-05/Rev.1 2022-07-27
27 Jul 2022 UN R117: Draft text for an informal document to amend document GRBP/2022/23 WT-44-06/Rev.1 2022-07-27
27 Jul 2022 Worn tyres: Proposal for additional test campaign (JASIC) WT-44-07 2022-07-27 JASIC
28 Jul 2022 Worn Tyres working group status report to GRBP WT-44-08 2022-07-28
28 Jul 2022 Minutes of the 44th Worn Tyres working group WT-44-09 2022-07-28
27 Jul 2022 Attendance list from the 44th Worn Tyres working group session WT-44-10 2022-07-27
5 Sep 2022 Draft agenda for the 45th Worn Tyres working group session WT-45-01 2022-09-05
12 Sep 2022 ETRTO workplan proposal for Wet Grip on Worn tyre test precision improvement (ETRTO) WT-45-02 2022-09-12 ETRTO
13 Sep 2022 Worn tyre wet test precision improvement test plan proposal (JASIC) WT-45-03 2022-09-13 JASIC
14 Sep 2022 Minutes of the 45th Worn Tyres working group session WT-45-04 2022-09-14
14 Sep 2022 Participants list from the 45th Worn Tyres working group session WT-45-05 2022-09-14
13 Oct 2022 Agenda for the 46th Worn Tyres working group session WT-46-01/Rev.1 2022-10-13
13 Oct 2022 Worn tyre wet test precision improvement: test plan proposal (JASIC) WT-46-02 2022-10-13 JASIC
13 Oct 2022 Worn tyres: 2023 test campaign-report on JASIC/JATMA-ETRTO meetings (JASIC) WT-46-03 2022-10-13 Report on discussions to reconcile proposals for a test campaign towards improving the wet grip test precision. JASIC
16 Oct 2022 Participation list from the 46th Worn Tyres working group session WT-46-04 2022-10-16
16 Oct 2022 Minutes from the 46th Worn Tyres working session WT-46-05 2022-10-16
28 Oct 2022 Agenda for the 47th Worn Tyres working group session WT-47-01 2022-10-28
4 Nov 2022 Worn tyres work plan proposal (ETRTO) WT-47-02 2022-11-04 ETRTO
9 Nov 2022 Worn Tyres working group: Draft updated terms of reference WT-47-03/Rev.3 2022-11-09
9 Nov 2022 UN R117: Draft text for a 03 series of amendments on wet grip of worn tyres WT-47-04 2022-11-09
9 Nov 2022 Minutes from the 47th Worn Tyres working group session WT-47-05 2022-11-09
9 Nov 2022 Attendance list from the 47th Worn Tyres working group session WT-47-06 2022-11-09
10 Dec 2022 Agenda for the 48th Worn Tyres working group session WT-48-01/Rev.1 2022-12-10
12 Dec 2022 Status report of the Worn Tyres working group small group activities WT-48-02 2022-12-12
21 Dec 2022 Minutes from the 48th Worn Tyres working group session WT-48-03 2022-12-21
16 Dec 2022 Participants list from the 48th Worn Tyres working group session WT-48-04 2022-12-16