When should a bus driver activate the overhead amber lights when approaching a bus stop?

A bus driver should activate the overhead amber lights when approaching a bus stop to alert other road users that the bus is preparing to stop and load or unload passengers. The specific distance of 300 feet is significant because it provides adequate warning for drivers behind and in front of the bus, allowing them to react safely and prepare to either slow down or stop.

The purpose of the amber lights is to enhance safety as school children can be unpredictable when boarding or disembarking from the bus. Activating the lights at this distance gives plenty of time for approaching vehicles to understand that the bus will soon be stopping, which helps reduce the risk of accidents in areas where children are present.

Drivers must be aware that activating the lights too late may not give sufficient warning to other motorists, while activating them too early could cause confusion about the exact stop location. The 300 feet is a balanced distance that ensures safety without drawbacks such as premature warning, making it the optimal choice for this situation.