In conditions of poor visibility, what is the best action to take?

In conditions of poor visibility, turning on your headlights is the best action to take. Headlights significantly increase your ability to see the road ahead and make your vehicle more visible to other road users. This is especially important in situations such as fog, rain, or heavy shadows, where natural light is insufficient. By using your headlights, you improve your visibility and safety while driving, as well as assist others in recognizing your presence on the road.

Using high beam headlights, as mentioned in one of the options, is generally not advisable in poor visibility conditions like fog or heavy rain, as it can create glare and hinder your ability to see. Driving faster to get through poor visibility quickly can increase the risk of accidents, as you may not be able to react promptly to hazards. Ignoring visibility conditions altogether poses significant dangers, as it compromises both your safety and that of other road users. Thus, turning on your headlights is the most effective way to navigate safely through poor visibility.