What color lines separate lanes where traffic is going in opposite directions?

The use of yellow lines to separate lanes where traffic is going in opposite directions is a standardized practice in road marking. Yellow lines indicate that vehicles are traveling in opposite directions, which helps drivers understand the flow of traffic and ensures safe navigation on the road. In particular, a solid yellow line indicates that passing is not permitted, while a broken yellow line indicates that passing is allowed when it is safe to do so. This color coding plays a critical role in traffic safety, as it helps drivers make informed decisions about lane usage, especially on roads that may not have physical barriers separating opposing traffic.

In contrast, white lines are generally used to delineate lanes of traffic moving in the same direction, green lines often signify bike lanes or specific pathways, and black lines are not typically used for lane separation but may appear in other road markings or designs. Understanding these color conventions is essential for safe driving practices.