What is used as left edge lines on divided highways?

The correct answer identifies single solid lines as the left edge lines on divided highways. This is important for guiding drivers and providing clear boundaries on the road. Single solid lines are typically used to indicate the separation of traffic moving in opposite directions and signify that crossing the line is not permitted. This helps maintain safety by ensuring that vehicles remain within their designated lanes.

On divided highways, these left edge lines aid drivers in understanding where their lane begins, especially during low visibility conditions. Meanwhile, double yellow lines are generally used to indicate no passing zones, dashed white lines separate lanes of traffic moving in the same direction, and broken yellow lines mark the center of the road, indicating that passing is allowed under certain conditions. Understanding the function of these different line types is crucial for safe driving practices and navigation on highways.