Evaluating Causal Effects of SOTIF Triggering Conditions

Kurzfassung

The ISO 21448 provides guidance on achieving safety of the intended functionality (SOTIF) for road vehicles with driving automation. Among other measures, it requests the identification and evaluation of so-called triggering conditions. In this presentation, we explore how the mathematical framework of causal theory can be leveraged to quantify causal effects of triggering conditions on measured criticality for a given automated driving system (ADS). Provided that sufficient data are available, the proposed approach constructively enables the causal evaluation of such triggering conditions, delivering a solid argument for a safety case.