Hands-On: ADAS Hazard Analysis

"""SOTIF Hazard Analysis and Risk Assessment."""
from dataclasses import dataclass
from typing import List

@dataclass
class SOTIFHazard:
    hazard_id:       str
    tc_id:           str   # triggering condition
    hazardous_event: str   # what happens
    severity:        int   # S0-S3 (ISO 26262)
    probability:     str   # high/medium/low
    controllability: str   # controllable/difficult/uncontrollable
    risk_level:      str   # acceptable/tolerable/unacceptable
    acceptance_criterion: str

AEB_HAZARDS: List[SOTIFHazard] = [
    SOTIFHazard(
        hazard_id="H_AEB_001",
        tc_id="TC_001",
        hazardous_event="AEB fails in heavy rain; rear-end collision at 50 km/h",
        severity=3,
        probability="high",    # rain is frequent
        controllability="difficult",  # rear collision hard to avoid
        risk_level="unacceptable",
        acceptance_criterion="Miss rate < 0.1% in light rain; HMI warning in heavy rain"
    ),
    SOTIFHazard(
        hazard_id="H_AEB_002",
        tc_id="TC_003",
        hazardous_event="False AEB activation on highway; rear-end by following vehicle",
        severity=3,
        probability="low",
        controllability="difficult",
        risk_level="tolerable",
        acceptance_criterion="False activation rate < 0.01 per 1000 km"
    ),
]

for h in AEB_HAZARDS:
    print(f"[{h.hazard_id}] S{h.severity} | {h.risk_level.upper()}")
    print(f"  {h.hazardous_event[:60]}")
    print(f"  Criterion: {h.acceptance_criterion}")