Illinois Driver's License Renewal Practice Test 2026 - Free DMV Practice Questions and Study Guide

A yellow traffic light serves as a warning to drivers that the signal is about to change to red. This means that drivers should prepare to stop if they can do so safely. The purpose of the yellow light is to provide a clear indication that they should not proceed through the intersection, as running a red light can lead to dangerous situations.

This transition phase is crucial for maintaining safety on the road, as it allows time for vehicles that are already in the intersection or too close to stop safely without causing a collision. Drivers are encouraged to reduce speed and evaluate their ability to stop when they see a yellow light.

In contrast, the other options do not accurately describe the function of a yellow light. A yellow light does not signify that it has just changed to green, nor does it imply that drivers should continue at the same speed. Additionally, while pedestrian crossings are important to recognize, they are indicated by specific signals or signs rather than a yellow light.