Although red colour catches the most attention, it has already been attributed to danger so the next most attentive colour - which can be distinguished in the crowd - yellow - is painted on the school bus.
Yellow colour can also be spotted even in the rain, fog and dew. Since the lateral peripheral vision of yellow is 1.24 times greater than the red colour, it is more visible than the red itself.
Even if a person is not looking straight, he can spot the yellow coloured school bus in front of him. That's why the school bus is painted yellow to lessen the possibility of an accident for the bus filled with children on the highway.
