What do double solid white lines mean on a road?
Quick Answer
Double solid white lines indicate that lane changes are prohibited. They are often used to separate a bike lane from traffic or to mark special lane boundaries. Do not cross double solid white lines to change lanes.
Explanation
Double solid white lines indicate that lane changes are prohibited. They are often used to separate a bike lane from traffic or to mark special lane boundaries. Do not cross double solid white lines to change lanes. Understanding this concept is essential for safe driving and will help you answer similar questions on the DMV written test.
Why This Matters on the DMV Test
Questions about Traffic Signs are among the most common on the permit test. Knowing the correct answer helps you pass your exam and stay safe on the road. Most states require a score of 70–83% to pass.
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