When should pedestrians wear reflective clothing at night?

Pedestrians should wear reflective clothing at night, particularly when walking outside built-up areas, to enhance their visibility to drivers. In low-light conditions, such as nighttime, the risk of accidents increases significantly, especially on poorly lit roads or while walking in rural areas. Reflective clothing makes pedestrians more noticeable to approaching vehicles, allowing drivers to react appropriately and maintain safe distances.

Wearing reflective clothing at all times, as suggested in another option, may not be practical or necessary, especially in well-lit urban environments where pedestrians are already more visible. Being specific about wearing reflective clothing outside built-up areas accounts for the increased danger in those scenarios. In urban areas, streetlights and other sources of illumination generally provide better visibility. Foggy weather can reduce visibility, but reflective clothing is most crucial at night when visibility is limited regardless of weather conditions. Hence, the emphasis is on nighttime walking outside of urban settings where potential hazards are most pronounced.