What time of day is typically hardest to see shapes and objects on the road?

Twilight is typically the hardest time of day to see shapes and objects on the road due to the unique lighting conditions present during that time. As the sun sets or rises, the light can create a hazy, dim environment where objects may not be well-defined. This period is characterized by a mix of fading natural light and potential headlights from oncoming vehicles, which can further obscure visibility.

At midday, the sun is usually at its highest point, providing bright and clear visibility. Early morning also tends to offer clearer visibility as the sun rises, casting light in a way that can illuminate the environment. Late night can be challenging due to darkness, but headlights provide artificial illumination that helps to improve visibility to a degree. During twilight, however, the transition between daylight and darkness creates a particularly challenging scenario for drivers, making it difficult to discern shapes and assess distances accurately.