What is a pedestrian crosswalk marked by?

A pedestrian crosswalk is marked by white lines across the road. This marking signals to both drivers and pedestrians that it is a designated area for pedestrians to cross safely. The use of white lines is standardized and recognized by road users as an indication of pedestrian rights at that location. It is essential for vehicles to yield to pedestrians within these marked areas to enhance safety for those on foot.

The other options do not accurately define the standard marking for a pedestrian crosswalk. Red lights and signs are typically used to regulate traffic rather than specifically to mark crosswalks. Yellow lines could indicate different things, such as no parking zones or lane divisions but are not specifically for crosswalks. Flashing lights may accompany some crosswalks to get drivers’ attention but are not the defining feature of what marks a crosswalk.