Texas CDL General Knowledge Practice Exam 2026 - Free CDL Practice Questions and Study Guide

A yellow traffic signal serves as a crucial warning to drivers, indicating that the signal is about to change to red. This means that drivers should prepare to stop if it is safe to do so. The purpose of the yellow light is to provide a transition period, allowing vehicles that are already in the intersection to clear it safely, while also alerting those approaching the intersection to slow down.

Options that suggest going faster or continuing at the same speed contradict the fundamental purpose of the yellow light, which is to enhance safety by warning drivers that they need to reduce their speed and be prepared to stop. The response recommending yielding to oncoming traffic does not apply specifically to the yellow light and is more relevant to situations at a four-way intersection or when making turns. Understanding the meaning of traffic signals, including the yellow light, is vital for ensuring safety on the roads.