What do broken yellow lines indicate on streets and highways?

Broken yellow lines are used to indicate that lanes of traffic are moving in opposite directions. This marking allows for crossings when safe to do so, such as when making a left turn or passing another vehicle. Because it signifies that vehicles traveling in opposite directions are sharing the same roadway, the presence of these broken lines allows a driver to change lanes and pass other vehicles, provided it is safe and legal to do so.

In contrast, options like designating bike lanes or separating lanes of traffic moving in the same direction do not accurately describe the meaning of broken yellow lines. Additionally, while lane changes may be permitted where broken yellow lines are present, it’s the indication of opposing traffic that is the primary function of this road marking. Recognizing the role of broken yellow lines is critical for safe navigation on streets and highways.