Operating autonomous delivery vehicles in high-density pedestrian corridors requires deterministic safety architectures compliant with ISO 3691-4.
Optical safety scanners monitor two concentric protective zones: a 3-meter warning bubble that reduces vehicle speed to 3 km/h, and a 0.8-meter emergency envelope that cuts drive power via dual redundant contactors.
Recurrent neural networks predict pedestrian walking vectors 3.5 seconds into the future, enabling the robot to gracefully pass joggers or evade distracted phone users.
Across 150,000 commercial delivery kilometers in municipal zones, the multi-layer safety framework recorded zero reportable pedestrian contact events and a 99.98% mission completion rate.