Ontario Bus Driver Knowledge Practice Test 2025 - Free Bus Driver Practice Questions and Study Guide

A yellow traffic light serves as a warning to drivers that the light will soon change to red. This change is intended to prompt drivers to prepare to stop safely before entering an intersection. It signifies that vehicles should not proceed as if the light were still green; instead, they should evaluate the situation and make the decision to slow down and stop.

While it's important for drivers to consider their ability to stop safely, the primary purpose of the yellow light is to alert them to the impending change, giving them time to react appropriately. Recognizing this signal is crucial for enhancing safety at intersections and assisting in the overall flow of traffic.

The other options might suggest actions that could lead to unsafe driving practices, such as speeding up to clear the intersection or proceeding as if the light is still green. Preparing to stop aligns with the underlying traffic laws and safety measures in place to protect all road users.