What is the best practice regarding the use of headlights in poor visibility conditions?

Using low beams and high beams in combination during poor visibility conditions is essential for ensuring optimal visibility while also being considerate of other drivers on the road. Low beams are particularly beneficial in fog, rain, or snow as they minimize the amount of light that reflects off these conditions, reducing glare and allowing for a clearer view of the road.

In contrast, high beams provide stronger illumination and are suitable for dark, open roads without oncoming traffic. However, using high beams in conditions such as fog or heavy rain can actually hinder visibility by scattering light back at the driver, creating a blinding effect. Therefore, a mix of both lighting options, depending on the specific conditions and surrounding traffic, allows for maximum safety.

This approach demonstrates a balance of maximizing visibility and ensuring that other drivers are not blinded by excessive light, which is key for safe driving practices in adverse weather conditions.