What lights should be turned on when driving a motor vehicle in foggy weather?

[Weston]

When driving a motor vehicle in foggy weather, turn on the fog lights. If visibility is low, also turn on the hazard warning lights. Here are some precautions for driving in foggy conditions: Use lights correctly. Fog lights should be turned on in foggy weather as their light waves penetrate fog more effectively and illuminate farther. When visibility is extremely poor, you can turn on the hazard warning lights because yellow light has better penetration through fog. Remember not to use high beams. Use the horn for alerts when necessary. In foggy conditions, it's harder to see each other, so honk appropriately when overtaking, turning, or encountering pedestrians to signal your movements. Reduce speed and avoid sudden braking. First, slow down. Foggy weather reduces visibility, and most vehicles move slowly. Driving too fast increases the risk of rear-end collisions. Slowing down also helps avoid sudden braking, which can be dangerous since judging distances is difficult in fog, and sudden stops may cause accidents for vehicles behind. Avoid reckless overtaking. Do not rush to overtake in foggy weather, as low visibility makes it hard to assess the situation ahead of the vehicle in front. Especially in heavy fog, not only should you turn on the hazard warning lights, but it's also best to maintain a safe distance and follow the vehicle ahead. Only when you can confirm the road conditions ahead should you honk and pass slowly at a low speed.

[MorganLynn]

I've been driving for over a decade and faced many challenges in foggy conditions. Proper lighting is crucial: you must turn on both front and rear fog lights as they penetrate fog effectively; simultaneously activate low beams to assist illumination and make your vehicle more visible to others. Never use high beams - they reflect back and actually reduce visibility. I once almost rear-ended another car because I had my high beams on. In extremely dense fog, turning on hazard warning lights (emergency flashers) can enhance safety. According to traffic regulations, failing to use fog lights in foggy conditions may result in penalty points and fines, so I always check my fog lights before every trip. Additionally, maintain slower speeds and greater following distances in fog. I prefer driving in the middle lane to avoid pedestrians who might suddenly appear roadside. With more practice, you'll get familiar with it - safety should always come first.

[OEsther]

I got my driver's license last year and was terrified the first time I drove in foggy weather—couldn't see a thing through the thick mist. I immediately asked my driving instructor, who taught me that in foggy conditions, I must turn on both front and rear fog lights, which can usually be found near the dashboard. Additionally, I should use low beams but absolutely avoid high beams, as the white light can reflect and create even more danger. Later, when I encountered heavy fog on the highway, I turned on my hazard lights to alert vehicles behind me, and everyone reacted more safely. Using fog lights helps me identify road markings and the outlines of vehicles ahead, reducing misjudgments. I advise new drivers to review the driving manual thoroughly and gradually develop good habits. If conditions are poor, pull over to observe the situation before continuing—don’t rush.

[DiRowan]

I usually study vehicle lighting design, and there are specific considerations for using lights in foggy conditions: fog lights use red or yellow light with longer wavelengths, which can penetrate fog more effectively than white light; high beams are blue-white light, which gets scattered by water droplets and becomes blurry, so avoid using them. Simply use a combination of front and rear fog lights along with low beams to improve visibility and alert vehicles behind you. Additionally, check the lifespan and wiring of your fog lights, and replace them promptly if they fail to avoid malfunctioning in foggy conditions. In rainy or humid weather, lighting effects are similar, so carrying a spare flashlight for emergencies is advisable. Managing lighting may seem minor, but it can prevent major issues.