How do hills and curves affect visibility during the day compared to night?

Hills and curves significantly impact visibility, particularly at night compared to during the day. At night, decreased natural light makes obstacles harder to see, and the limited range of headlights means that a driver may not be able to see around or over hills and curves effectively. This can obscure both road conditions and other vehicles, increasing the risk of accidents.

In contrast, during the day, there is ample natural light allowing for better visibility around hills and curves. Drivers are more likely to perceive potential hazards on the road and adjust their speed or position accordingly. Therefore, the assertion that hills and curves reduce vision more at night reflects the critical understanding that visibility conditions dramatically worsen when light levels diminish. This knowledge is vital for safe driving practices and risk management on the road.