Safety elements gathered from national guidelines, WP.29 documents, and other sources for consideration in developing eventual performance requirements for ADS.

Proposal to clarify that specific vehicle belted Enhanced Child Restraint Systems (ECRS) may be fitted with a support leg, top tether and lower tether attachments. This proposal also amends the existing support leg volume to improve the compatibility between the support leg volume and the Child Restraint Fixtures used for accessing the external dimensions of an ECRS.

Proposal to introduce provisions for a Digital User Guide.

Proposal to clarify provisions including the Test Report Template and Dimension Assessment Method.

This document was produced during an informal meeting (on 23 September 2020) of interested experts who reviewed the ALKS-related documents presented at GRVA on 22 September 2020.

Proposal to replace the specification of the type and size of brake caliper and brake disc for brake lining CoP assessment with specifications for a pad area and thickness of the original approval. The original specification corresponds to obsolete caliper and rotor configurations no longer in widespread use.

Proposal to amend the proposal from Germany regarding lane-change functionality:

1. paragraph 5.2.1. – lane keeping
2. paragraph 5.2.6.1. – risk to safety of the vehicle occupants and other road users
3. paragraphs 5.2.6.2. and 5.2.6.3. – preconditions for a lane change procedure
4. paragraph 5.2.6.5. – timing of a lane change maneuver
5. paragraph 5.2.6.6. and its sub-paragraphs – criticality of a lane change maneuver
6. paragraph 7.1.3. – rear detection range
7. Annex 5. – test cases for rear detection range, lane change.

The intention of the proposed amendment is to clarify the existing text on continued support of an ACSF B1 if the boundary conditions are exceeded. It clarifies that under certain circumstances, e.g. if there are no lane markings present or if the vehicle has already drifted substantially out of the lane such that the lane may no longer be recognized, a continuation of support may no longer be possible or reasonable.

The proposal aims to correct 5 types of inconsistencies:

1. The reference to Annex 4 is repeated in each sub-paragraph and should instead be stated once in each paragraph.
2. Acronyms are used inconsistently. Proposal to use them consistently throughout similar to UN-R79, e.g. Emergency Manoeuvre (EM), and when used in the text as “emergency manoeuvre”
3. Each sub-paragraph has a heading, this helps understand the structure and should be carried over to par. 8.1., 9.1. and 9.2. as well, the wording for the heading of par. 9.1. and 9.2. are derived from UN-R155 and UN-R156 respectively.
4. Consistent use of term throughout, e.g. R₁₅₇SWIN without blank, Cyber Security as two words as used in UN-R155
5. Editorial corrections, e.g. missing paragraph numbers, missing full stop in the paragraph number.

The intention of the proposed amendment is to clarify the existing text on continued support of an ACSF B1 if the boundary conditions are exceeded.

Proposal to include all vehicle categories M and N in the scope of UN R157.

Proposal for an alternative to ensure user attentiveness when activating a remote-controlled parking system.

Proposal to modify the following elements:

1. paragraph 5.6.4.2.3., delete “temporarily”
2. paragraph 5.6.4.5.2.1., replace “actually” by “anticipated to be”
3. paragraph 5.6.4.6.6., B1 shall resume “in a timely manner”
4. paragraph 5.6.4.6.8.1., clarify the suppression criteria
5. paragraph 5.6.4.7., define distance tolerances for lane-change critical distances
6. Annex 8, Paragraph 2., Carry over the language already adopted for ACSF B1: “At the manufacturer’s discretion and with the agreement of the Technical Service, a lane with a width of less than 3.5 m may be used, if the correct function of the system on roads with wider lanes can be demonstrated.” and allow for lower temperature and wet surface test conditions, and
7. Annex 8, Paragraph 3.5.1.2. (j), amend the pass condition with regard to direction indicator deactivation.