What does a single broken yellow line usually indicate on a two-way roadway?

A single broken yellow line on a two-way roadway indicates that passing is permitted if it is safe to do so. This line serves as a marker that traffic in either direction can cross the line to overtake another vehicle, provided that the road conditions and visibility allow for safe passing. Drivers must use their judgment and ensure it is clear ahead before making such a maneuver, promoting safe driving practices while allowing for flexibility in traffic flow.

Understanding this function of the line helps drivers make informed decisions about overtaking slower vehicles, enhancing the efficiency of road use. It’s important for drivers to remain vigilant and adhere to safe passing rules, as the presence of the line suggests opportunity but not an outright encouragement to pass under dangerous conditions.