What does a pair of solid yellow lines in the middle of a two-lane road signify?
A double solid yellow line indicates that the lanes are designated for traffic moving in opposite directions, and overtaking or crossing the lines is strictly prohibited. This rule is enforced to maintain safety on roads where visibility is limited or conditions make passing risky, such as curves or hills. Obeying these lines prevents head-on collisions by restricting vehicles to their respective lanes, thereby fostering safer traffic flow and reducing accidents.
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