GRVA/2024/23
UN R171: Proposal for amendments

Proposal from the ADAS task force for editorial improvements and corrections to the new UN Regulation on the approval of Driver-Control Assistance Systems.

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Excerpts from session reports
GRVA | Session 20 | 23-27 Sep 2024

20. The representative of Germany presented GRVA-20-04, proposing a supplement to the 01 series of amendments to UN Regulation No. 157 aimed at addressing the content of the footnote in paragraph 5.2.6.5.1 that GRVA agreed to revisit at this session. He proposed that lane changes for heavy vehicles be authorized in a target lane for which the speed limit was identified.
21. The representative of the United Kingdom of Great Britain and Northern Ireland recalled to GRVA that he conducted a survey with the Contracting Parties within the Special Interest Group for UN Regulation No. 157 and that there was a consensus on removing the footnote. He mentioned that only Germany proposed a substitute.
22. The representative of OICA inquired whether more flexibility could be accepted in situations where the system identified that a lane change was uncritical.
23. The representative of the Netherlands inquired about the justification for removing the footnote. He stated that the German proposal was a sensible way forward in case the footnote would be deleted.
24. The representative of Japan could agree to the proposal. He suggested finding a more general text.
25. The representative of Sweden identified situations that could be dangerous also in cases where the speed limit can be identified, e.g., when the ego vehicle has a very slow speed.
26. GRVA agreed to continue this discussion and requested the secretariat to distribute GRVA-20-04 with an official symbol at its January 2025 session.
27. GRVA considered GRVA-20-42 (superseding ECE/TRANS/WP.29/GRVA/2024/30 and ECE/TRANS/WP.29/GRVA/2024/40) at the same time as GRVA-20-43 under agenda item 6(b). GRVA requested the secretariat to distribute GRVA-20-42 with an official symbol at the January 2025 session.

64. The representative of the United Kingdom of Great Britain and Northern Ireland introduced ECE/TRANS/WP.29/GRVA/2024/33 as amended by GRVA-20-29 aimed at aligning the conditions for automatic reinstatement of the system at the “initiation of each engine start/run cycle” with the provisions contained in other UN Regulations. He produced GRVA-20-43 and Rev.1 to address the comments received.
65. GRVA adopted ECE/TRANS/WP.29/GRVA/2024/33 as amended by
Annex III and requested the secretariat to submit it as a draft supplement to the original version of UN Regulation No. 171 (DCAS).

69. GRVA requested the secretariat to distribute GRVA-20-54, a proposal for a supplement to the original version of UN Regulation No. 171 prepared by the European Commission Joint Research Centre, with an official symbol for consideration at its January 2025 session.

76. GRVA considered ECE/TRANS/WP.29/GRVA/2024/36 and GRVA-20-44 (superseding ECE/TRANS/WP.29/GRVA/2024/34 and ECE/TRANS/WP.29/GRVA/2024/35) at the same time as GRVA-20-43 under agenda item 6(b). GRVA requested the secretariat to distribute GRVA-20-44 with an official symbol at the January 2025 session.