Pedestrian signals are traffic control devices that help ensure the safety of people crossing streets. They typically consist of illuminated symbols or words that indicate when it is safe for pedestrians to walk or when they should wait. Common signals include a green walking figure for "walk" and a red hand for "don't walk." These signals are often found at intersections and are designed to work in conjunction with traffic lights for vehicles. By providing clear instructions, pedestrian signals help reduce accidents and improve the flow of both pedestrian and vehicle traffic in urban areas.