Google recently acquired a US patent that suggests their new self-driving cars will have external airbags to protect passengers. The airbags would deploy when car sensors detected an immediate vehicle-pedestrian collision.

Unlike traditional airbags that push people away, Google’s airbags would cushion pedestrians with a memory-foam like substance. Traditional airbags send pedestrians flying causing injury or death. Google’s airbags are made with a “visco-elastic” material that would “hug” pedestrians instead of pushing them into the street.

Self-driving cars have driven 100,000 miles with two accidents. Both times, the self-driven cars were rear-ended while stopped at traffic lights.

2,400 British Columbian pedestrians were injured