ISO/AWI TS 25536

Road vehicles — Retrospective safety performance assessment for Automated Driving Systems

Scope

his document specifies recommended best practices for executing and evaluating retrospective safety assessments of Automated Driving Systems (ADS, as defined in ISO/SAE PAS 22736:2021) following deployment into the traffic system.

The purpose of the document is to provide stakeholders with a set of recommended best practices for executing and evaluating retrospective safety assessments.

Excluded from this document are the following aspects:

— ethics of ADS technology (already in scope for ISO/IEC/IEEE 24748-7000:2022, ISO 39003:2023, and ISO/IEC TR 2436:2022);
— prospective safety performance assessment (already in scope for ISO/TR 21934-1:2021 and ISO/TS 21934-2:2024);
— non-crash related outcomes, such as safety critical events, measures of crash proximity, or other potential safety surrogate measures (already in scope as a prospective measure of safety within for ISO/TR 21974-1:2018);
— usage of simulation and virtual tooling (already in scope for ISO/TR 21934-1:2021, ISO/TS 21934-2:2024, ISO/TS 5083:2025 and SAE J2998).