There are many aspects of school bus safety that a district transportation manager must oversee, but one of the most critical is implementing measures to prevent onboard fires. Fires on school buses are more common than people realize. In fact, the DOT estimates that one or two fires happen every school day. Fortunately, most of these happen when students aren't onboard, but tragedies do occasionally happen. On average, 22 people are hurt or killed every year by bus fires.