What do two parallel white lines painted across the road indicate?

Two parallel white lines painted across the road indicate a pedestrian crosswalk. This marking serves to alert drivers that they are approaching an area where pedestrians may be crossing the street. It is important for drivers to recognize this marking and to yield to pedestrians who are in or approaching the crosswalk, ensuring safety for all road users.

In contrast, the other options represent different traffic controls and regulations. A speed limit is typically indicated by a posted sign along the roadside, not by lines on the pavement. A stop sign ahead is indicated by a traffic sign, and a no parking zone is marked by signage or often additional curbing or other visual indicators rather than just lines.