What does a red "X" signal indicate for drivers?

A red "X" signal is a critical traffic signal that indicates a specific lane is closed and that drivers should not enter or use that lane. This signal is often employed in scenarios such as road work, lane shifts, or other hazardous situations where the lane is not safe for vehicle traffic. Following a red "X" is essential for maintaining safety on the road, as it guides drivers in avoiding areas where they may encounter obstacles or where maintenance is occurring.

Understanding the importance of this signal contributes to overall traffic safety. The other signals listed may pertain to various traffic regulations, but none carry the same directive regarding lane usage as the red "X." For example, yielding to pedestrians is generally indicated by other signs and signals, while the designation for emergency vehicles would typically utilize different signage to alert drivers of specific lanes reserved for such vehicles.