The task force discussed assessment of Human Body Model (HBM) readiness timelines, adding skull fractures, lumbar spine, and general kinematics to evaluation criteria. The group identified injury metrics and data gaps for each body region. TU Graz will gather additional stakeholder feedback. The next meeting is scheduled for 13 April 2026.
Proposal to amend UN R157, including Annex 4, paragraph 3.5.4, requiring manufacturers to monitor safety-relevant incidents and report critical incidents to type-approval authorities, a new paragraph 3.5.4.1 to require approval authorities to upload remedial action information to the DETA database within 14 days, and a new Annex 7 to provide guidance for authorities on using DETA to exchange incident information.
The 37th session reviewed a consolidated working document on automotive life cycle assessment integrating comments from Contracting Parties, stakeholders, and the European Commission. Key unresolved issues include electricity modelling, chain of custody, primary data share, logistics, battery replacement, and vehicle lifetime assumptions. The leading team will update the overview table and identify priority issues for discussion. The next session is scheduled for 9 April 2026, with an internal milestone of 19 June 2026 to resolve outstanding issues.
GTB proposes simplifying UN R48 by developing a single CAD-based method to determine apparent surface at early design stages. The proposal deletes the “light-emitting surface” definition and establishes “apparent surface” as the orthogonal projection of visible light-emitting surfaces in a specified observation direction. Amendments include revised definitions for lens, textured outer lens, illuminating surface, and apparent surface, with modified requirements for single lamps with multiple distinct parts. Distance requirements between adjacent parts are adjusted to 75mm or 200mm depending on lamp type.
OICA presents research findings on direction indicator perceptibility when stop lamps activate simultaneously. Key findings indicate that spatial separation between functions, increased direction indicator intensity, and relative signal dominance improve perception. Research shows stop lamp luminance can reduce direction indicator recognition, particularly in near-field viewing. OICA concludes that minimum size requirements proposed in the German proposal exceed available evidence and may create unintended consequences without demonstrated safety benefits.
Final version pursuant to the DPPS 21st informal group session and post-meeting follow-up.
Updates to Annex 2 (Qualification Process of Human Body Models for Pedestrian HIT-Determination) and Annex 3 (HIT-Determination Simulation).
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