When driving at night, what is crucial for visibility?

Visibility while driving at night is largely influenced by the condition and alignment of a vehicle's headlights. Ensuring that headlights are clean and aimed correctly is essential because this maximizes the amount of light that illuminates the road ahead. Dirty or misaligned headlights can significantly reduce visibility, making it difficult to see road signs, pedestrians, and other vehicles.

While fog lights, high beams, and parking lights serve specific purposes, they do not replace the fundamental necessity of having properly functioning headlights. Fog lights are designed to reduce glare in foggy conditions and should not be relied upon as the main source of illumination. High beams provide more light but can cause glare for oncoming drivers if used inappropriately. Parking lights are intended for signaling purposes when a vehicle is stationary and do not offer adequate illumination for night driving. Thus, the condition and alignment of headlights play a crucial role in ensuring safe and effective visibility at night.