When school is in session, children are exposed to traffic hazards when crossing streets in front of their schools, when getting on and off buses, and while walking along neighborhood roads. Unfortunately, this exposure causes fatalities every year by motorists who are distracted, intoxicated, negligent, or fail to observe school zone or school bus laws. Common ways in which these fatalities happen include: Failing to Stop When a School Bus Flashes Its Red Lights Motorists must stop when a school bus flashes its red lights regardless of whether they’re behind the.