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UN ECE R151

Uniform provisions concerning the approval of motor vehicles with regard to the Blind Spot Information System for the Detection of Bicycles

Issuing bodyUNECE
CommitteesUNECE (WP.29, GRSG / VRU-Proxi)
First issued2020
Latest revision2021
Statusactive
Categoryinternational
Topicsadas_effectiveness, auditory_warnings, hazard_perception, vru_conspicuity
Referencehttps://unece.org/sites/default/files/2021-08/R151e.pdf

Scope

Approval of Blind Spot Information Systems (BSIS) on heavy vehicles (categories N2, N3; optional M2, M3) that detect cyclists in the near-side blind spot and inform the driver during low-speed right/left turns. Specifies the detection zone, the timing of an early information signal when a cyclist may enter the critical area, and an escalated warning when collision becomes likely, plus constraints on signal modality and conspicuity so the driver can react before turning across a cyclist's path.

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