What do yellow lane lines indicate?

Yellow lane lines are an important aspect of road markings that provide critical information to drivers about the direction of traffic flow. When yellow lane lines are present, they indicate that the lanes they separate are for traffic moving in opposite directions. This means that vehicles traveling in one lane are going towards oncoming traffic in an adjacent lane, which is crucial for maintaining safety on the road.

Understanding this helps to reinforce safe driving habits, as drivers must exercise caution when navigating areas marked with yellow lines to avoid head-on collisions. Yellow lines are particularly common on two-way streets and highways, serving as a clear visual guide for drivers to ensure they stay in the correct lane and respond appropriately to oncoming vehicles.