Wet Grip on Worn Tyres (WT)
Reports to GRBP
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Documents 2020
9 Jan 2020 Draft agenda for the 7th Worn Tyres working group session WT-07-01
16 Jan 2020 Worn Tyres: Matrix for conducting testing of tyres WT-07-02
20 Jan 2020 Participants list from the 7th Worn Tyres working group session WT-07-04
20 Jan 2020 Minutes of the 7th Worn Tyres working group session WT-07-03
24 Jan 2020 Draft status report of the Working Group on Worn Tyres WT-08-02
24 Jan 2020 Draft agenda for the 8th Worn Tyres working group session WT-08-01
4 Feb 2020 Attendance list from the 8th Worn Tyres Working Group session WT-08-09
4 Feb 2020 Minutes of the 8th Worn Tyres Working Group session WT-08-08
4 Feb 2020 IWG for Wet Grip of Worn Tyres: Status report to 71st GRBP (January 2020) WT-08-07
4 Feb 2020 Worn tyre wet-grip performance: Ongoing tests status WT-08-06
4 Feb 2020 Worn tyres: Proposals on Trailer Method test campaign WT-08-05
4 Feb 2020 Worn tyres working group testing and validation matrix WT-08-04
4 Feb 2020 Proposal on winter tyres buff profile WT-08-03
13 Feb 2020 Japan comments on report of the 8th Worn Tyres working group session WT-09-01
13 Feb 2020 Worn Tyres working group and EU timetables WT-09-02
6 Mar 2020 Agenda for the 8th Worn Tyres working group session WT-09-03/Rev.2
6 Mar 2020 Reference Tyre and Wet Grip Index calculation: Trailer Method test campaign WT-09-08
9 Mar 2020 Worn tyre test engagement letter (template) WT-09-14
9 Mar 2020 China customs clearance for non-CCC tyres WT-09-13
9 Mar 2020 Attendance list from the 9th Worn Tyres working group session WT-09-12
9 Mar 2020 Worn tyres round-robin guidelines for testing centers-example WT-09-10
9 Mar 2020 Worn tyre testing raw data template WT-09-07/Rev.1
9 Mar 2020 Buffing report template for worn-tyre round robin testing WT-09-06/Rev.1
9 Mar 2020 Logistical matrix for worn-tyre test procedure validations WT-09-05/Rev.2
9 Mar 2020 Contacts for worn tyre validation test centres WT-09-04/Rev.2
9 Mar 2020 Worn tyres validation testing logistical principles WT-09-09
13 Mar 2020 Draft minutes of the 9th Work Tyres Working Group session WT-09-11
9 Apr 2020 Worn tyres: Example of individual test report WT-10-02
9 Apr 2020 Worn tyres: Example of aggregated test report WT-10-03
23 Apr 2020 Draft agenda for the 10th Worn Tyres Working Group session WT-10-01/Rev.1
27 Apr 2020 Worn tyres test program: Impact of COVID-19 for tyre logistics in Japan WT-10-05
28 Apr 2020 UN R117: Worn tyres and roughness measurement WT-10-04
13 May 2020 Worn Tyres: Impact of COVID-19 on tyre industry and the informal group work plan WT-10-06
13 May 2020 Status of worn tyres work plan as of 27 April WT-10-07
13 May 2020 UN R117: Worn tyre buffing method WT-10-08
13 May 2020 Minutes of the 10th Worn Tyre Working Group session WT-10-09
13 May 2020 Attendance list from the 10th Worn Tyres Working Group session WT-10-10
25 May 2020 Draft agenda for the 11th Worn Tyres working group session WT-11-01/Rev.1
25 May 2020 Worn tyres: Tread depth measurement locations SRTT 16’’ WT-11-02
25 May 2020 Life Test Study on New tyres versus Worn tyres WT-11-03
2 Jun 2020 Minutes of the 11th Worn Tyres working group session WT-11-07
2 Jun 2020 Worn tyres: UTAC aggregated test report WT-11-05
2 Jun 2020 Status of the Worn Tyres informal group work plan WT-11-04
2 Jun 2020 Participants list from the 11th Worn Tyres working group session WT-11-06
16 Jun 2020 Worn tyres working group testing and validation matrix WT-08-04/Rev.2
16 Jun 2020 List of contact test centers WT-09-04/Rev.3
22 Jun 2020 Worn tyres: Buffing procedures preliminary experience WT-12-03
22 Jun 2020 Status of the Worn Tyres Working Group work plan as of 18 June WT-12-02
22 Jun 2020 Worn tyres: ETRTO response on question from IDIADA regarding tread depth measurement in shoulder zone WT-12-04
22 Jun 2020 IDIADA worn tyres aggregated testing report WT-12-06
22 Jun 2020 Draft agenda for the 12th Worn Tyres working group session WT-12-01/Rev.1
23 Jun 2020 Participants list from the 12th Worn Tyres Working Group session WT-12-05
23 Jun 2020 Minutes of the 12th Worn Tyres Working Group session WT-12-07
23 Jun 2020 Worn tyres: IDIADA aggregated testing data with task force comments WT-12-06/Rev.1
25 Jun 2020 Life Test Study on New Tyres vs Worn Tyres: France WT-12-08
5 Jul 2020 Worn tyres: Aggregate testing reports WT-13-02
6 Jul 2020 Agenda for the 13th Worn Tyres working group session WT-13-01
24 Jul 2020 Status of the Worn Tyres working group work plan WT-13-03
24 Jul 2020 Worn Tyres working group draft status report to GRBP WT-13-04
24 Jul 2020 Participants list from the 13th Worn Tyres working group session WT-13-05
24 Jul 2020 Minutes of the 13th Worn Tyres working group session WT-13-06
29 Aug 2020 Draft agenda for the 14th Worn Tyres working group session WT-14-01
10 Sep 2020 Worn tyres: Aggregated testing report WT-14-02
10 Sep 2020 Worn tyres: Test data collection tables WT-14-03
23 Sep 2020 Attendance list of the 14th Worn Tyres working group session WT-14-06
23 Sep 2020 Minutes of the 14th Worn Tyres working group session WT-14-05
23 Sep 2020 Work plan of the Worn Tyres working group WT-14-04
18 Oct 2020 Worn tyres informal group data collection template WT-15-03
19 Oct 2020 Agenda for the 15th Worn Tyres informal group session WT-15-01
20 Oct 2020 Worn tyres working group testing and validation matrix WT-08-04/Rev.1
21 Oct 2020 Worn tyres: Guidelines for testing phase of the informal group work plan WT-15-05/Rev.2
23 Oct 2020 Attendance list from the 15th Worn Tyres informal group session WT-15-07
23 Oct 2020 Draft report of the 15th Worn Tyres working group session WT-15-06
23 Oct 2020 Worn tyres data collection template (final version) WT-15-08
23 Oct 2020 Worn tyres: Proposal for data sharing process WT-15-04/Rev.1
23 Oct 2020 Status of the Worn Tyres informal group work plan WT-15-02/Rev.1
16 Nov 2020 Worn tyres working group testing and validation matrix WT-08-04/Rev.3
16 Nov 2020 SRTT 16" tread depth wear evolution measurements WT-16-03
19 Nov 2020 Draft agenda for the 16th Worn Tyres working group session WT-16-01/Rev.1
23 Nov 2020 Draft minutes of the 16th Worn Tyres working group session WT-16-06
23 Nov 2020 Attendance list from the 16th Worn Tyres working group session WT-16-05
23 Nov 2020 Status of the Worn Tyres working group work plan WT-16-02
23 Nov 2020 Worn tyres: Proposals for sharing of the buffing reports WT-16-04