NHTSA probe will look at whether the Waymo's self driving system was cautious enough in a busy school zoneNHTSA opened a probe after Waymo hit a child near a school. Waymo said its system reacted faster than a human would have. But one driverless Waymo vehicle just found itself called into the principal’s office after striking a child near an elementary school, and now federal safety officials are officially taking a closer look. After the incident, the vehicle stopped, pulled over, and contacted emergency services. Investigators will look at how Waymo’s autonomous driving system is designed to behave around schools, especially during peak drop off and pick up times.