Key Takeaways
It has been just a few minutes since you started driving on an early winter morning, and your visibility has been reduced due to fog. The road in front of you appears unfamiliar, headlamps come from out of nowhere, and you can’t see what the distance between you and the other car is. Well, this is when adhering to the proper fog driving tips can really help.
This article will cover how to drive safely in fog, how to use your headlights properly, how to stay at a safe distance from other vehicles, and what situations call for stopping your vehicle rather than continuing to drive.
One of the worst things about foggy weather is its deceptive nature. It decreases your visibility range without affecting your speed perception in any way. Due to poor visibility, your brain does not estimate your speed and your relative distance from other vehicles properly. Consequently, foggy conditions give you an illusion of safety, allowing many people to keep up their usual pace.
As per data from the Ministry of Road Transport and Highways (MoRTH), adverse weather conditions such as heavy rain, thick fog, and hailstorms account for around 16% of India’s total road accidents.
Foggy and misty conditions alone were responsible for over 26,000 accidents and more than 11,000 deaths in a single year – accounting for roughly 7.5% of all road fatalities nationwide. Separately, MoRTH’s more recent reports show fog-related mishaps regularly claim over a dozen lives every day during India’s peak winter fog season across northern states like Punjab, Uttar Pradesh, and Delhi-NCR.
Unlike rainy or snowy conditions, fog does not impair tyre grip. However, it decreases your chances of predicting dangers that lie ahead. You will probably not be able to spot a vehicle stopped, a turn, a pedestrian, or any animal until it is too late to do anything. It is particularly dangerous on highways because of possible multiple collisions.
The reaction time decreases since the distance between noticing the danger and getting close to it is reduced. If you can see only 50 metres ahead of the car as opposed to 200 metres, there will be less time to notice any upcoming obstacle, think about the decision, and apply the brakes. This explains the danger of maintaining even regular highway speeds in dense fog.
Indeed, it matters, as with dense fog, visibility decreases consistently, so people usually start slowing down in advance. However, patchy fog is more challenging since you may face either good visibility or very poor visibility in seconds. Therefore, it is better to reduce the speed before entering every patch of fog.
The winter morning becomes extremely challenging due to the thick fog. Here are some essential fog-driving tips for a safe expedition on the roads during winter:
On normal days, drivers are expected to observe the three-second rule. However, according to fog driving tips, it is necessary to double the distance and maintain a minimum of six seconds’ distance between your car and the one in front of it. Select any landmark near the roadside and make sure that your car overtakes the point six seconds after the preceding car does.
No. Hazard lights will only confuse other motorists while driving because it becomes hard to differentiate whether you are signalling to change lanes or stopping suddenly. The hazard lights should be turned on only if the driver stops or moves very slowly due to any emergency issue in the car.
There is no specific speed limit in the fog; it all depends on the distance you can see. If it is lower than 100 metres, drive slowly. For a distance of less than 50 metres, your speed should be about 30–40 kilometres per hour, and you should be able to stop within the range of visibility.
Unlike regular headlights, fog lights are specifically manufactured to work in poor-visibility conditions. They are placed lower than the headlights and produce a flat horizontal light beam. This is meant to illuminate the surface of the road and help the driver to identify the road and possible dangers.
When driving in foggy conditions, switch your front fog lights on when the visibility drops. Fog, heavy rain, or snowfall to the point where you cannot see more than 100 metres ahead. Also, you may use the rear fog lights in heavy fog. This will help other road users to spot you more easily. As soon as visibility improves, turn them off, as their brightness can blind drivers travelling behind you.
Unlike other lights, high-beam headlights shine upward, whereby small water particles in the air scatter the light, producing glare for the driver. They do not improve visibility but rather worsen the condition, as it produces blinding effects. Fog lights, on the contrary, function by shining below the thick fog, therefore increasing visibility without causing glare. For better visibility, use both front fog lights and low-beam headlights in addition to rear fog lights if available on the vehicle you are driving.
If your vehicle does not have fog lights, the right thing to do is to use low-beam headlights. Then the best practice is to keep your windscreen clear by wiping and using the defroster. Also, drive slowly while maintaining a safe following distance. However, modern cars have factory-fitted fog lights, but if they do not, practising safe driving techniques is much better than relying on the equipment.
Only five to ten minutes of preparation can greatly help with foggy road conditions. Before you get out of the house, make sure you’ve cleaned your windscreen, mirrors, and headlights since dirty or wet surfaces will only worsen the already bad visibility conditions.
Moreover, make sure that you have tested your windscreen wipers, defroster, tyre pressure and exterior lights, including brakes and fog lamps. Also, adjust your mirrors properly so that there will be no reflection from behind, and top up your washer fluid because you’re most likely going to need it while driving.
✓ Windscreen, mirrors, headlight, and taillight cleanliness.
✓ Low beams, brake light, and fog light testing.
✓ Proper working of wipers, washer fluid and defroster.
✓ Tyre inflation checking.
✓ Mirrors are set before the start of driving.
✓ Phone charging and emergency contacts availability.
Yes. Before leaving for your destination, gather information about weather and roads from sources like your national weather service, local meteorological office, or weather apps. If a Dense Fog Advisory has been issued, waiting 30-60 minutes will usually help you drive once the fog disappears, particularly in the early morning hours. It’s worth waiting – it means you put your safety first.
When it comes to fog driving tips, there are many things to do except lower your speed. In case visibility becomes poor, each manoeuvre, including braking and lane changes, should be done slowly and gently. During the nighttime, the problem gets exacerbated as the combination of darkness and fog leads to a lack of contrast, making it hard for you to assess distances, turns, and other road users. It means that you have to make yourself seen, be patient, and drive no faster than the visibility allows.
These are the fog-driving tips in a step-by-step way that you should follow when visibility becomes impaired:
Step 1: Slow down carefully and make sure you can stop within sight distance.
Step 2: Turn on low-beam headlamps and fog lamps; never use high-beam lamps, as they produce glare.
Step 3: Double your usual following distance.
Step 4: Make sure that your wipers and demister are switched on to have the clearest view of the road.
Step 5: Do not overtake or change lanes since other vehicles may come into view very suddenly.
Step 6: Drive according to lane markings rather than the taillights of the vehicle driving in front, as it will make you think the vehicle is far ahead of you.
Step 7: Pull over to a safe place in case visibility becomes almost zero.
However, you should never stop on an active carriageway; use parking areas, lay-bys, and service stations.
Yes, because at night, due to the absence of ambient light, it becomes more difficult to see the edges of the road, curves, pedestrians, and vehicles.
To stay safer, follow the fog driving tips below at night:
In some cases, it is safer not to drive at all. For instance,
It is time to find a secure spot to pull over. Driving in zero visibility greatly increases the chances of having accidents.
Find a place to pull off the road in rest areas, gas stations, parking lots, or lay-bys whenever it is possible. Never park on the shoulder of the road unless there is no other option, and do not park in a moving lane, even in very bad weather conditions. After parking the car, turn on your hazard lights.
The majority of fogs, primarily radiation fogs, dissipate within 30 minutes to a few hours after sunrise when the temperature goes up. Always make sure that your visibility exceeds 100 metres, which also means that you can quite freely see the road signs and markings. It is safer to wait if visibility changes quickly or remains low.
Driving in fog should not necessarily be dangerous. However, it calls for a certain attitude towards driving and some extra measures to keep yourself safe. Following our advice and driving slowly, turning your lights on, and keeping your distance from other vehicles, you
Drive slowly, turn on low-beam headlights or fog lamps, keep more following distance, and drive as fast as visibility permits. Following these fog driving tips will keep you safe while driving in the fog.
Use low-beam headlights only. High-beam lights will reflect off the fog drops and reduce your visibility. Also, front fog lamps must be used if your car has them.
Keep your following distance doubled to a minimum of 6 seconds and even more when visibility becomes poor. Therefore, by checking the visibility, you can gradually slow or speed up your pace.
Yes, since it is difficult to assess the distance and the location on the road, as well as the position of other cars in foggy conditions, along with darkness. You can choose either not to drive at all during foggy nights or to drive carefully.
You must pull over when visibility becomes less than 50 metres, when lane markings aren’t visible, or when you don’t feel comfortable while driving. However, make sure that you have stopped away from the road.
Check the weather conditions; clean all the windows and lights. In addition, check your wipers and defroster, as well as your lights and tyres. Following these precautions along with the fog-driving tips will immensely help you.
No, usually not. Hazard lights may be used only in case you have safely stopped or are driving at an unusually slow speed in an emergency situation
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