Nova Scotia Road Rules Practice Test

A yellow arrow signal light serves as a warning to drivers, advising them to prepare to stop as they approach the intersection. It indicates that the traffic light is about to change, typically from green to red, and that the current right of way is ending. Drivers are encouraged to slow down and be ready to stop safely.

This light is crucial for maintaining traffic flow and safety at intersections, as it alerts drivers to the impending change while allowing them enough time to react appropriately. Following this indication helps prevent accidents that can occur if drivers continue at their current speed without recognizing the need to stop.

The other options do not align with the meaning of a yellow arrow. For example, accelerating to clear the intersection or continuing at the same speed contradicts the message to approach with caution. Turning in the direction of the yellow arrow generally does not apply, as it doesn't indicate a permissive turn, but rather a need to be vigilant about stopping.