As numerous new developers and operators are entering the field of Automated Vehicles (AVs), promising safer, faster, and more efficient modes of transportation, it is crucial to ensure these vehicles are being developed and deployed keeping safety as a priority. One such method is by establishing a Safety Case Framework (SCF), which provides a structure that helps AV organizations furnish claims and evidence to support the argument that an AV is safe and reliable to operate on public roads. This work aims to develop a dynamic SCF that consists of the three pillars:
- Safety Management System (SMS) pillar addresses organizational safety by managing process risks identified throughout the lifecycle of the system. It establishes protocols for hazard identification, risk assessment, and mitigation strategies to ensure comprehensive safety management, and promotes and educates employees and stakeholders on the importance of safety.
- Design Methods pillar emphasizing rigorous engineering practices, ensuring that the design of AVs and their subsystems meets stringent safety requirements. It includes methodologies such as Hazard Analysis and Risk Assessment (HARA), Failure Modes and Effects Analysis (FMEA), and adherence to standards like ISO 26262 for functional safety.
- Testing pillar focuses on validating and verifying the behavioral competency and safety of AV through various testing methods. These methods range from simulation-based testing to closed course and on-road testing, ensuring that the AV performs reliably under various conditions and scenarios.
This work additionally focuses on Technology Readiness Levels (TRLs) to ensure safety at each phase of development and includes change risk management for post-deployment risk. This framework is aligned with the TRL scale, which ranges from early conceptualization (TRL 1) to full operational deployment (TRL 9), requiring specific safety objectives and documentation for each TRL stage.