What is the purpose of advance channelization signs?

Advance channelization signs are designed to provide information to drivers about upcoming lane configurations, especially before intersections. These signs help drivers understand which lanes are available for specific turns or movements, allowing them to make necessary lane changes in advance of actually reaching the intersection. This is crucial for ensuring that traffic flows smoothly and safely, as it reduces the chances of sudden lane changes or confusion as drivers approach an intersection.

While speed limit signs, stop signals, and road work markings are important for traffic control, they do not serve the specific function of helping drivers prepare for lane changes, which is the key role of advance channelization signs. By clearly indicating lane options well ahead of the intersection, these signs promote better decision-making and improve overall road safety.