ADS-21-21
ADS guidance and interpretation document: Clarification on reporting of unreasonable risks to safety
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Proposal to modify the explanation on performance issues constituting an unreasonable risk to safety by specifying that this occurrence should be understood as deviations, degradations, or performance limitations shown by an ADS feature that affect its ability to perform the DDT within the declared ODD, triggered by events that present an unreasonable risk to safety and/or are beyond expected variability or acceptable degradation, replace “may” with “might” in references to discrete failures and risk existence, replace “Violation of” with “Non-compliance with respect to the”, delete references to identified reduction in safety margins and exceeding overall hazard exposure thresholds, replace “the rate of hazardous event occurrences” with “hazardous event exposure:”, and replace “suggests” with “could suggest”.
“Dynamic Driving Task (DDT)” means the real-time operational and tactical functions required to operate the vehicle.
Operational Design Domain: The conditions under which an Automated Driving System feature is designed to operate.