What does a double solid white line mean?

Answer: B — Lane changing is not permitted

A double solid white line indicates that lane changing is not permitted. This marking is used to emphasize the need for strict adherence to the lanes, often in situations where it's unsafe or illegal to change lanes. Commonly found on roads near intersections, construction zones, or in areas where traffic needs to be kept orderly, these lines ensure that drivers remain in their designated lanes to avoid collisions and enhance safety for all road users. While other markings and signs on the road might indicate the presence of bike lanes, the allowance of overtaking, or pedestrian crossings, the specific presence of double solid white lines is intended solely to restrict lane changes. It's essential for drivers to recognize these lines and understand their implications to maintain safe driving practices.