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WT-44-09 Minutes of the 44th Worn Tyres working group

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WT-44-10 Attendance list from the 44th Worn Tyres working group session

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Worn tyres: Proposal for 2023 additional test campaign matrix

Reference Number: WT-44-01

Submitted by: JASIC

Meeting Sessions: 44th WT session (27 Jul 2022)

Document date: 12 Jul 22

Relevant to

UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance

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Worn tyres: Comments on proposal for 2023 additional test campaign work plan

Reference Number: WT-44-03

Submitted by: ETRTO

Meeting Sessions: 44th WT session (27 Jul 2022)

Document date: 26 Jul 22

Relevant to

UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance

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Download from UNECE:

.pptx format

Small group discussion on usage purpose clustering

Reference Number: WT-44-04

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.

Meeting Sessions: 44th WT session (27 Jul 2022)

Document date: 20 Jul 22

Relevant to

UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance

Download from UNECE:

.docx format

UN R117: Draft text for informal document to amend document GRBP/2022/22

Reference Number: WT-44-05/Rev.1

Meeting Sessions: 44th WT session (27 Jul 2022)

Document date: 27 Jul 22

Relevant to

UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance

View full document file for more information

Download from UNECE:

.docx format

UN R117: Draft text for an informal document to amend document GRBP/2022/23

Reference Number: WT-44-06/Rev.1

Meeting Sessions: 44th WT session (27 Jul 2022)

Document date: 27 Jul 22

Relevant to

UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance

View full document file for more information

Download from UNECE:

.docx format

Worn tyres: Proposal for additional test campaign

Reference Number: WT-44-07

Submitted by: JASIC

Meeting Sessions: 44th WT session (27 Jul 2022)

Document date: 27 Jul 22

Relevant to

UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance

Download from UNECE:

.pdf format

Worn Tyres working group status report to GRBP

Reference Number: WT-44-08

Meeting Sessions: 44th WT session (27 Jul 2022)

Document date: 28 Jul 22

Relevant to

UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance

Download from UNECE:

.pptx format


12 Jul 2022	Worn tyres: Proposal for 2023 additional test campaign matrix (JASIC)	WT-44-01	2022-07-12
26 Jul 2022	Worn tyres: Comments on proposal for 2023 additional test campaign work plan (ETRTO)	WT-44-03	2022-07-26
20 Jul 2022	Small group discussion on usage purpose clustering	WT-44-04	2022-07-20
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
28 Jul 2022	Worn Tyres working group status report to GRBP	WT-44-08	2022-07-28