GAR | GRBP-78-06

Regulation:	GTR No. 22 \| Electrified Vehicle Battery Durability
Document:	GTR No. 22

Regulation:	GTR No. 22 \| Electrified Vehicle Battery Durability
Document:	GTR No. 22

Regulation:	GTR No. 9 \| Pedestrian Safety
Document:	GTR No. 9

Regulation:	GTR No. 9 \| Pedestrian Safety
Document:	GTR No. 9

Regulation:	GTR No. 13 \| Hydrogen and Fuel Cell Vehicle Safety
Document:	Amendment 1 \| Corrigendum 1

UN R117: ETRTO and STEER Analysis of Measurement Uncertainty

Document GRBP-78-06

20 July 2023

78th GRBP session (30 Aug-1 Sep 2023)

Submitted by the Chair of informal group on Measurement Uncertainties.

78th GRBP session (30 Aug-1 Sep 2023)

7. (c) | UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

22. The expert of IWG MU presented analyses of measurement uncertainty made by ETRTO and the experts from the project on Strengthening the Effect of quieter tyres on European Roads (STEER) (GRBP-78-06). The expert from IWG MU also gave an update on the C2 tyres noise temperature correction (GRBP-78-04). GRBP took note of these documents.

Reference Number:	WP.29/2025/2
Meeting Session(s):	195th WP.29 session (3-7 Mar 2025)
Document date:	24 Dec 24
Document status:	Formal WP.29 review
Regarding:	Communications/Connectivity

Reference Number:	EVE-79-05
Meeting Session(s):	79th EVE session (17 Dec)
Document date:	23 Dec 24
Regarding:	GTR No. 21 EV Power Determination \| GTR No. 22 EV Battery Durability \| HD EV Battery Durability

Reference Number:	VIAQ-30-09
Meeting Session(s):	30th VIAQ session (11 Oct)
Document date:	23 Dec 24
Regarding:	MR 3: VIAQ

Reference Number:	WT-64-03
Meeting Session(s):	64th WT session (16 Dec)
Document date:	22 Dec 24
Regarding:	UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

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