What does an unbroken white line in the center of the road signify?

An unbroken white line in the center of the road signifies that overtaking is prohibited. This indicates to drivers that they should not cross the line to pass another vehicle, as it is considered unsafe to do so in that area. The presence of an unbroken white line typically suggests that the road conditions or visibility do not allow for safe overtaking maneuvers.

Understanding this signal is crucial for maintaining safety on the road, as attempting to overtake when it is prohibited can lead to accidents and dangerous situations. Therefore, respecting the unbroken white line helps ensure the safety of all road users by preventing reckless driving behavior in restricted areas.