GAR | GRVA-25-56

GRVA-25-56

UN R171: Proposal to amend GRVA/2026/16

Source(s)

GRVA

Date

22 May 2026

Status

Approved by GR

Subject

UN R171 DCAS

Meeting(s)

GRVA | Session 25 | 18-22 May

Agenda item 6. (a) Driver-Control Assistance Systems

Proposal to amend GRVA/2026/16, based on GRVA-25-46. Insert new Introduction paragraph 17 regarding DCAS technology development and continuous review; amend paragraph 2.11. to define Target Lane; amend paragraph 5.3.5.1. to specify system boundary detection and feature transition requirements; amend paragraph 5.3.7.1.4. regarding steering support at boundary conditions; amend paragraph 5.3.7.2.1.1. to clarify driver disengagement detection timing; insert new paragraph 5.3.7.2.1.13. regarding manufacturer description of system behaviour during driver disengagement; amend paragraph 5.3.7.2.3.1. regarding driver confirmation time; amend paragraph 5.3.7.3.1. concerning risk mitigation function compliance; amend paragraph 5.3.7.5.1.1.2. regarding headway configuration notification; insert footnote 3 defining initiation of powertrain; amend paragraph 5.5.3.1. to clarify system off mode default status; amend paragraph 5.5.4.1.1. removing reference to system-initiated manoeuvres; amend paragraph 5.5.4.2.2.3. regarding warning escalation strategy; amend paragraphs 5.5.4.2.5.2. and 5.5.4.2.5.2.1. regarding visual disengagement assessment; amend paragraphs 5.5.4.2.7. and 5.5.4.2.7.1. regarding disengagement detection strategies; amend paragraph 5.5.4.2.8.1. regarding system activation disabling; amend paragraph 6.2.4.1. regarding approaching vehicle deceleration at speeds up to 60 km/h; amend paragraph 14.2. regarding production discontinuation; delete Annex 3 paragraphs 2.15. and 2.16. defining Highway and Non-Highway roads; amend Annex 3 paragraph 3.1.1. regarding documentation package retention; renumber Annex 3 paragraph 3.5.7. to 3.4.5. and insert new paragraph 3.4.5. regarding system information strategy; insert new paragraph 3.5.5. regarding safety management processes during operation phase; renumber former paragraphs 3.5.5. and 3.5.6. to 3.5.6. and 3.5.7. respectively; insert Annex 3 Appendix 2 with new definitions section; amend Annex 4 Introduction regarding test requirements and extended tests; amend paragraph 4.2.2.1. regarding longitudinal control distance; insert new paragraph 4.2.2.2. regarding non-repeatable outcomes; amend paragraphs 4.2.5.2.8.1.2., 4.2.5.2.10.1.1., and 4.2.5.2.12.1.1. regarding bicycle target specifications; delete paragraph 4.2.5.2.14.1.2.; amend paragraph 4.2.5.2.14.2.1. regarding test execution requirements; and amend Annex 5 paragraphs 3.4.8.2. and 3.5.5.1. regarding M&S data and simulation tool criticality assessment.

Downloads

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Related documents

Excerpts from session reports

GRVA | Session 25 | 18-22 May

41. During the consultations, the expert from CLEPA presented the status report of the Task Force on Advanced Driver Assistance Systems (GRVA-25-05), providing an overview of the documents submitted for review and their descriptions, the guidance sought from GRVA on the introduction of the “highway-like road” concept in the 01 series of amendments, and considerations for the next phase of DCAS. The expert from China stated that this concept was incompatible with China’s road classification system. The expert from France noted that the concept was intended for the 02 series of amendments only. The expert from Norway inquired about the potential safety benefits of introducing this concept. The experts reviewed the official documents tabled under this agenda item and considered amendment proposals submitted by the expert from the United Kingdom. They subsequently drafted informal documents GRVA-25-56, GRVA-25-57 and GRVA-25-58.

42. During the official part of this session, GRVA:

Endorsed a status report (GRVA-25-05) of the Task Force on Advanced Driver Assistance Systems.
Noted ECE/TRANS/WP.29/GRVA/2026/15 and ECE/TRANS/WP.29/GRVA/2026/17.
Requested the secretariat to distribute informal GRVA-25-46 (part 3 only) with an official symbol in September 2026.

43. GRVA adopted the following documents and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote in November 2026:

ECE/TRANS/WP.29/GRVA/2026/16 (amended by GRVA-25-56),
ECE/TRANS/WP.29/GRVA/2026/18 (amended by GRVA-25-57).

44. GRVA adopted ECE/TRANS/WP.29/GRVA/2026/14 (amended by GRVA-25-58) and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote in June 2026.