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UN R157: Proposal for amendments
Document GRVA/2021/3
20 November 2020

Proposal to expand the scope to include N category vehicles and to apply the minimum performance for service braking systems (5 m/s²) as required in the 11 series of amendments to UN Regulation No. 13, for vehicles of the Categories M2, M3, N2 and N3. The overall objective of the former Informal Working Group (IWG) on Automatically Commanded Steering Function (ACSF) was to develop technical requirements for Automated Lane Keeping Systems (ALKS). The initial limitation to passenger cars (M1 category vehicles) was agreed in order to deliver within the given timeline. After having successfully accomplished the work for the system in a first step, the automotive industry has now reviewed and examined the existing requirements under the premise of including all vehicle categories M and N.

Submitted by CLEPA and OICA
Status: Superseded
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Previous Documents, Discussions, and Outcomes
4.10.8. | Proposal for Supplement 3 to UN Regulation No. 157 (ALKS)
4. (d) | UN Regulation on Automated Lane Keeping System

GRVA received a progress report from the Special Interest Group on UN Regulation No. 157 (GRVA-10-34).

GRVA discussed the coordination of work related to this agenda item in line with the guidance provided by AC.2 (GRVA-08-10).

GRVA requested the secretariat to submit GRVA-10-35 to WP.29 and AC.1 for consideration and vote at their November 2021 sessions, subject to final review by GRVA at its September 2021 sessions.

4. (d) | UN Regulation on Automated Lane Keeping System

23. The expert from OICA introduced their proposal to extend the scope of UN Regulation No. 157 in ECE/TRANS/WP.29/GRVA/2021/3 (amended by GRVA-09-19) and invited the GRVA expert to provide views and input on the questions in GRVA-09-34.

23bis. The expert from Korea noted that the time gap values were governed by traffic rules and that UN Regulation No. 157 took the reference deceleration values from UN Regulation No. 13- H. He suggested that the corresponding values in UN Regulation No. 13 should be used for heavy vehicles.

4. (d) | UN Regulation on Automated Lane Keeping Systems

17. The expert from Germany presented GRVA-07-63, introducing ECE/TRANS/WP.29/GRVA/2020/32 with a proposal for amendments to UN Regulation No. [157] (ALKS), aimed at increasing the maximum speed (from 60 km/h to 130 km/h) for ALKS. She also introduced a second proposal (ECE/TRANS/WP.29/GRVA/2020/33) aimed at introducing provisions for ALKS performing lane changes. The experts from Austria, China, Denmark, European Commission, France, Italy, the Netherlands, Norway, Republic or Korea, Sweden and UK were rather supportive. They provided ideas and technical comments to improve the proposals. The expert from Switzerland opposed to the proposed speed increase (up to 130 km/h), stating that it would be counterproductive and as Switzerland was reviewing traffic rules based on the adopted 60 km/h. The experts from Japan, Canada and USA did not support the proposals and referred to FDAV as the reference document guiding the work of GRVA on automation. The expert from SAFE stated the need for a clear roadmap, mentioned the challenges for the Technical Services and the Approval Authorities with regards to Level 3 technologies and supported the comments from the European Commission regarding the need for a Regulation addressing Automation on motorways.

18. It was recalled that the expert from UK was working on a proposal for provisions for lane change during the minimum risk manoeuvre.

19. The expert from OICA presented GRVA-07-26, introducing a proposal for amendments to UN Regulation No. [157] (GRVA-07-31), aimed at extending the scope of the Regulation to heavy vehicles. They recalled that these vehicle categories were already in the scope of the activities of the former IWG on Automatically Commanded Steering Function (ACSF), which drafted UN Regulation No. [157].

20. GRVA noted that its work priorities on automation were defined by WP.29 in the FDAV. GRVA also noted that a number of Contracting Parties were willing to work on amendments to UN Regulation No. [157] and therefore decided to consult the Administrative Committee for the coordination of work (AC.2).

21. The expert from the Russian Federation introduced GRVA-07-07, highlighting some inconsistencies between the different parts of UN Regulation No. [157]. He mentioned discrepancies on the use of the term “system”. He questioned the need for Appendix 3 to Annex 4. He then introduced amendment proposal GRVA-07-06 on behalf of the European Commission and the Russian Federation. The expert from OICA responded to the proposal (GRVA-07-59). He also briefly introduced GRVA-07-30, proposing editorial changes to the Regulation and GRVA-07-21 with substantial amendments to the Regulations.

22. The Chair mentioned other informal documents (GRVA-07-27, GRVA-07-45, GRVA-07-56, GRVA-07-62 and GRVA-07-66), proposing amendments to UN Regulation No. [157] and invited the stakeholders to prepare a consolidated document with amendment proposals that could generate consensus at GRVA. Interested parties developed GRVA-07-69-Rev.1.

23. GRVA adopted the amendment proposals marked in green and yellow in GRVA-07-69-Rev.1 (see Annex III of the session report). GRVA requested the secretariat to correct the abbreviations, as appropriate, and to submit it without the text in red as supplement to UN Regulation No. [157], for consideration and vote by the World Forum for Harmonization of Vehicle Regulations (WP.29) its Administrative Committee for the 1958 Agreement (AC.1) at their March 2021 sessions.

24. Following the interpretation request by the expert from France (GRVA-07-39), GRVA agreed that ALKS should in principle detect “approaching emergency vehicles” as per traffic rules, noting that a definition of approaching emergency vehicles as well as other clarifications should be developed as soon as possible.

Related and Previous Documents
Relates to UN R157 |