GRSG-131-50
Door Opening Warning Systems (DOWS): Status Report on the Workshop
Source(s)
Date
14 Apr 2026
Status
Subject
Meeting(s)

Door-opening collision accidents between motor vehicles and vulnerable road users occur frequently and pose serious risks to road traffic safety. No mandatory UN Regulation or Global Technical Regulation for Door Opening Warning Systems exists internationally, resulting in regional inconsistencies. A virtual kick-off workshop was held on 1 April with participation from contracting parties and stakeholders. The workshop reviewed accident data from Germany and China, discussed potential technical parameters for DOWS, and identified the need for broader international data collection. Further workshops are envisaged pending availability of substantive new input.

UNECE server
Excerpts from session reports
GRSG | Session 131 | 13-17 Apr

52. GRSG was informed (GRSG-131-50) of the outcomes of the kick off workshop on Door Opening Warning Systems (DOWS), held following GRVA’s referral of the subject and GRSG’s decision to establish co led workshops by Germany and China. The workshop reviewed available accident data, noted significant data limitations and regional differences, and held an exploratory, non binding exchange on potential system and regulatory aspects. Participants agreed that further international data collection and discussion were warranted before any regulatory conclusions, and that the workshop series would report back to GRSG at its October session.