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UN R157: Proposal for clarifications
Document GRVA-07-21
15 September 2020

Proposal to clarify the text with regard to:

  1. paragraph 2.6., Definition of an imminent collision
  2. paragraphs 5.1.9 and 7.1.4., Lifetime of the system
  3. paragraph, Traffic Rules and Safety Distance to the front
  4. paragraph – “anticipated TTC” in cut-in scenario
  5. paragraph, Deactivation by input to driving controls
  6. paragraph 6.2.6., Transition to assisted driving
  7. paragraph 6.4.4., Examples of information to the driver
  8. Annex 5 – Tests
    • Section 5.1. contains physical tests that have to be performed at the time of type approval
    • Section 5.2. aims to confirm at the time of type approval, that the system complies with the corresponding provisions of the main text. This confirmation shall be done by at least one physical test per provision, if possible due to the nature of the provision, and may be supported by further evidence.
    • Section 5.3. is a collection of additional scenarios, that the ALKS could encounter. Whether they are relevant to the ALKS depends on its ODD. So either the manufacturer explains why his system will not need to handle these scenarios, or has to explain the behaviour of the ALKS.
    • larify the content of par. 5.2. by rewording the provisions similar to that of the core text.

Submitted by CLEPA and OICA
Status: Informal GR review
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Previous Documents, Discussions, and Outcomes
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.

Relates to UN R157 |