The area to the left of a school bus is considered especially dangerous to students because:
The sun’s reflection obscures the left side of the bus.
Passing vehicles are located to the left of the bus.
It is difficult to see the left side of any bus.
There is no door on the left side of the bus.
While all sides of a school bus have danger zones, the left side is particularly hazardous to students due to the presence of passing vehicles.