Yesterday, we posted on our Facebook page a video of a vehicle traveling with its hazard lights on in the rain, with the following caption:
This video shows that many Filipino drivers believe that turning on the hazard lights during a heavy downpour is the right thing to do. BUT IT'S NOT. We repeat: Do not use your hazard lights in the rain. It's not only pointless, it's also confusing and even potentially dangerous. If you want to increase the visibility of your car to other motorists, just turn on your regular lights, period. If you feel road visibility is next to zero, you shouldn't be driving--pull over to a safe shoulder.
Now, our caption is based on fact and international traffic laws--which are predicated upon the 1968 Vienna Convention on Road Traffic, of which the Philippines was an official participant. President Ferdinand Marcos then ratified this treaty and made it "part of the law of the land" on June 6, 1973.
This 1968 treaty contains the following provisions in Article 32, which is about "Rules of the use of lamps":
* Between nightfall and dawn, and in any other circumstances when visibility is inadequate, the presence of power-driven vehicles and their trailers standing or parked on a road shall be indicated by front- and rear-position lamps. In thick fog, falling snow, heavy rain or similar conditions, passing lamps or front fog lamps may be used. Rear fog lamps may, in these conditions, be used as a supplement to the rear-position lamps.
* Hazard warning signal may be used only to warn other road-users of a particular danger: (a) When a vehicle which has broken down or has been involved in an accident cannot be moved immediately, so that it constitutes an obstacle to other road-users; and (b) when indicating to other road-users the risk of an imminent danger.
From where we sat, we always knew that, according to international traffic laws, hazard lights were designed only for stalled vehicles in an emergency situation, and not for moving ones with uninformed drivers behind the steering wheel. It's the law, period. But then, the practice of using hazard lights has been so popular among Filipino drivers that correcting it now usually results in countless indignant motorists mocking the effort.
And so we found ourselves on the receiving end of many people's violent reaction to our Facebook post. "Why fix what isn't broke?" "Everyone does it." "I just feel safer doing it." "The unique driving conditions in the Philippines justify it." And so on and so forth.
It's a seemingly endless debate with people sincerely believing they are in the right. And who can blame them, really?
So, in our desire to help provide trustworthy enlightment with regard to the hotly contested topic, we've decided to conduct a survey among some of the most respected individuals in the Philippine motoring community. These are auto industry executives, motor-show organizers, race car drivers, motoring journalists and car enthusiasts. One of them even owns the country's leading driving school. With decades of experience working around and toying with the automobile, you can't find many people who are more knowledgeable about road safety than these guys (and gals).
Here's what these motoring folks--grouped into those who are for and those who are against the practice of using hazard lights in wet-weather driving--have to say about the matter. If you want to have your own say, take the poll at the bottom.
NO, IT'S NOT RIGHT OR SAFE TO USE THE
HAZARD LIGHTS WHEN DRIVING IN THE RAIN
Dong Aberin (car dealership executive) - No to hazard lights for me in bad weather conditions. It is confusing, unsafe and definitely not proper.
Carlo Ablaza (car industry executive) - When I was growing up in the ’80s, I believe this was the norm. My folks would tell me that when it was raining hard, better turn on your hazard lights and headlights so that people could see you. I accepted this as fact because your parents were always right. Turning into an adult car enthusiast, I would always ask myself: How can you indicate where you are turning if your hazard lights are flashing when it’s raining? You shouldn’t turn on your hazard lights during a downpour--your headlights and taillights are good enough.
Jason Ang (motoring journalist) - As the name suggests, hazard lights should be used only when the vehicle is a potential danger, such as when it's stopped on the road. For visibility in the rain, drivers should use headlights/taillights and fog lamps.
Albert Arcilla (car industry executive) - The function of the hazard lights is to warn other motorists of a potential hazard when the vehicle you are driving is stationary--normally, by the side of the road for whatever reason. This signals other motorists to evade or to be cautious when approaching. So no, you shouldn’t use your hazard lights when driving in the rain. The general rule is that blinking lights while moving are only for emergency vehicles like ambulances, police cars and rescue vehicles.
Uzzi Asuncion (car industry executive) - Back in college, I used to believe in using hazard lights during rain. The red rear park lights weren’t enough for me to see. However, since 2008, when my cousin got hit by a car that was confused with a moving car with hazard lights on, I realized the practice was pretty stupid. So now I use the hazard lights only if I’m really a hazard on the road. Any other case can be served by the rear lamps.
Joseph Anthony Ayllon (car industry executive) - You shouldn’t do so as it confuses other motorists. You could potentially even involve others in an accident since they wouldn't know if you were turning left or right. You’d only end up as a, well, hazard to them.
Beeboy Bargas (off-road driving instructor and motoring journalist) - It is a matter of fact that hazard lights are only to be used on a vehicle that is immobile. It’s a no-no to drive on the highway with the hazard lights on in heavy downpour. What the driver should do if he or she is uncomfortable in those driving conditions is to drive slow in the rightmost lane or just pull over on the right side of the road and wait out the rain while using hazard lights.
Paeng Batuigas (car industry executive) - While your hazard lights may make your vehicle more visible in heavy rain, they increase the risk of accidents as well. Your fellow motorists will not be able to distinguish a turn signal from a hazard light. It's better to turn on your headlights and taillights instead, or just avoid driving in bad weather altogether.
Lyn Buena (car industry executive) - Hazard lights are warning lights for indicating to oncoming cars that your vehicle is stalled or has stopped on the road for whatever emergency-related reason. Therefore, using them while driving in the rain is not proper.
Ron Castro (aftermarket industry executive) - In heavy rain, I am for using headlights only. Avoid using the hazard lights as you cannot signal vehicles around you if you intend to change lanes or make a turn. I thought there was no debate on this?
Brian Chua (car dealership executive) - For me, a better alternative would be to turn on the fog lights instead. Hazard lights when moving may cause confusion among other motorists on the road.
Sherwin Chua-Lim (car industry executive) - In my opinion, hazard lights in the rain aren’t safe. Best to turn on the headlights and the taillights during a strong downpour even if it’s daytime.
JV Colayco (car enthusiast and motoring journalist) - If you do have serious car trouble and need to stop in the middle of the road during heavy rain, how will people behind you notice that you are, in fact, a hazard? It completely defeats the purpose of hazard lights. Just turn on your main lights, as the red taillights will serve the exact same purpose of making you more visible while saving the hazards for real hazards (that is, when you get stranded and immobile).
Robby Consunji (lawyer and motoring journalist) - It is gross negligence to drive with the hazard lights on--whether it’s raining or not. I believe the supremacy of hazard lights came from the Martial Law days. Sirens and flashing beacons were for the powerful; hazard lights were the poor man's option.
Charlie Cruz (race event organizer) - I think when hazard lights are turned on, the driver should pull over to the side of the road. I do not agree with turning on the hazards while driving during a heavy downpour, especially on expressways. Turning the park lights or headlights on will give sufficient visibility to surrounding traffic.
Jason Dela Cruz (motoring journalist) - Turning on your hazard lights during a downpour is an absolute no-no, for the simple reason that it’s not what they’re for. You won't know if the vehicle will be changing lanes or not. There's a reason why taillights are red. And while taillights are enough for our conditions, a fog lamp will help. It has become so instinctual for Pinoys to turn on the hazard lights rather than the headlights, the absence of understanding is bothersome.
Glen Dasig (car industry executive) - It’s not okay to use hazard lights in the rain. Not at all. They're called hazard lights, not extra-visibility lights.
James Deakin (motoring journalist) - You wouldn’t pull the fire alarm just to get people’s attention to make an announcement, so why flick your hazards on when you’re not a hazard? You may think that you’re making yourself more visible, but the danger here is that now there’s nothing distinguishing you from a car that has actually stalled and become a real hazard on the road that people need to avoid or that emergency crews can identify. Plus, you lose the ability to indicate. That’s why they invented fog lamps, daytime running lamps and headlights/taillights. Use them accordingly. Please. I beg you.
JJ Dinglasan (car enthusiast) - Kalokohan yan! International driving laws prohibit that. I honk my horn at drivers who do that.
Ginia Domingo (car industry executive) - The hazard lights, if left on, will disable you from using your turn signal lights, which I feel are more important for the cars behind you to see when driving during a storm. If the purpose is to alert other cars that you're stopping or slowing down, then I think it's okay to use your hazard lights. If not, then turning on your headlamps should suffice.
Arnel Doria (car industry executive and road safety advocate) - Nowhere is there any mention of using hazard signals during rainfall in the 1968 Vienna Convention on Road Traffic. The Highway Code of the UK advises the use of hazard warning lights when your vehicle is stationary, to warn that it is temporarily obstructing traffic. It must not be used while driving. On cars locally sold in the Philippines, turn signals are disabled when the hazard lights are on, and this increases the risk of a road crash as the trailing drivers cannot anticipate the front vehicle's intention to turn either left or right. Instead, turn on the low beams during rainfall. If there is a visibility problem arising from heavy rainfall, it is better to slow down and look for a good place to stop. It is always better to avoid driving in bad weather whenever possible.
Froilan Dytianquin (car industry executive) - My take on this is that hazard lights should not be used during a heavy downpour. The driver should just turn on the headlights and the taillights so that the vehicle will be visible to cars in front and those following it. If available, front and rear fog lamps will also complement your vehicle's visibility.
Jean-Marc Freihuber (karting track owner) - Turning your hazard lights in the rain is so wrong. Neanderthal type of driving. Hazards must be kept in case of something really bad, not just because it’s raining--which obviouly the driver behind you noticed as well. If your hazards are already on, what will you use in case of a major crash to warn drivers behind you? The use of fog lights in the rain is also wrong. Fog lights are for fog, not rain. The fog light spreads with water and blinds people coming toward you. It has been engineered especially for fog.
Aljun Garcia (driving school executive) - At A-1 Driving, driving in the rain with hazard lights is not right and safe. Other motorists will be confused on what direction you are taking. Hazard lights should only be used for stalled vehicles that may need assistance.
Kay Hart (car industry executive) - No, hazard lights are not appropriate when driving in the rain. They should be used as a way to warn other motorists that you are a hazard--for example, you are stopped and are therefore posing danger, or are slowing down at very sudden speeds. We also teach this at every "Ford Driving Skills For Life" seminar.
William Herrera (motorsport enthusiast) - I believe that it is not proper to turn the hazard lights on while the vehicle is moving during a strong downpour. It becomes a guessing game for others on what the driver’s intentions are. Hazard lights should only be turned on when at a standstill.
Danny Isla (car industry executive) - Hazard lights are supposed to be used when your car is immobile. Never use them when your car is moving, especially during heavy downpours, as the car behind you wouldn't know if you are changing lanes or making a turn. This is dangerous.
Richard Joson (race car driver and car enthusiast) - No! It’s not good to use the hazards when driving in the rain. That’s strictly for emergency or to warn for distress or mechanical breakdown. A lot of filipino motorists become callous and thick-faced--throw in stupidity--and you get people crying wolf by using hazard lights in a downpour. Next thing we know, every idiot is using hazard lights casually just to be noticed and seen. Then when we really have an emergency, no one will respect these hazard lights anymore. Same like before with the ambulance siren. It was so abused by idiots that you barely saw people getting out of the way in the presence of an ambulance.
Rommel Juan (electric vehicle industry executive) - Hazard lights should be used to warn people behind if there is an obstruction in front or if your vehicle is stopped on the road due to an emergency--because hazard lights generally make the cars behind to stop. But if you are moving even if it is raining, the danger arises when you have to switch lanes and you are unable to use your signal lights to indicate that you are switching lanes.
Ferman Lao (motoring journalist and car shop owner) - I’m against the unnecessary use of hazard lights. Park lights are sufficient to increase the visibility of your vehicle to other drivers, giving them sufficient time to react. The objective, after all, is to make yourself visible and give yourself and others enough time to react to the adverse road conditions. Speed, visibility and reaction time go hand in hand. If the situation comes to a point where visibility is compromised, then pulling over to a safe spot when it becomes available would be the best option. If you can't see where you're going, then the likelihood of you being visible to others is low as well. That increases the chances of an accident happening. However, drivers should use good judgment as to where and when to pull over. Stopping after a crest or any turn, for example, is a big no as drivers coming from the blind side will have very little warning if they suddenly need to go to the shoulder.
Andy Leuterio (motoring journalist) - No, it's not alright to use the hazard lights in the rain. Rules are rules. Kaya nagkakagulo ang kalye ay dahil may kanya-kanyang interpretasyon at justification for all the usual traffic rules and regulations. "It's alright to run a red light because there's no other traffic." "I can counter-flow because I am making a quick left." "I will use the hazards to increase my visibility." If everyone turns on their hazards, then the zero visibility becomes even worse since now there's a sea of blinking lights to navigate through. If a driver really can't see anything to the point of having to turn on the hazards, then he should park on the shoulder and turn them on until he's confident enough to resume driving.
Sam Liuson (aftermarket industry executive) - No, it's not okay to turn on the hazard lights in the rain simply because there are headlights and taillights for that very purpose. How else will you be able to signal a lane change, or let cars behind you know when your vehicle stalls?
Ardie Lopez (motoring journalist) - While I agree that turning on the hazard lights under a downpour makes one more visible, it's for the wrong reason. Obviously, no one would be able to tell if you’re about to make a turn in either direction. So yes, I think it's wrong to turn them on just because it’s raining.
Dong Magsajo (car industry executive) - I am very much against the use of hazard lights while traversing during a downpour. We've gone through too many driver education courses to even question this. Not only does the practice endanger other motorists by giving the person who does it no chance to indicate a possible lane change, it is also redundant as simply turning on one's headlamps and taillights already makes one visible from the rear.
Karl Magsuci (car industry executive) - I will follow what the law says. Because if everything is subject to interpretation or personal preference, this world will be in greater chaos than what it already is. I googled and found this site LTOExam.com and saw that, indeed, the use of hazard lights when driving in the rain is not allowed. So the case should be closed. Follow the law. Hazard lights should not be used when driving in rain.
Nicky Mariano (car industry executive) - It's not okay and it's not right. I've also asked foreign friends just now, and they say that even if it's snowing heavily, they don't turn on their hazard lights. It's against the law. As long as the vehicle is moving, the use of hazard lights is not allowed. I think proper information is what the public needs.
Dino Obias (car industry executive) - It's a definite no. I guess it's acceptable only when the vehicle has a busted taillight.
Ira Panganiban (motoring journalist) - I totally do not agree with the use of hazard lights during a heavy downpour or thick fog. The use of the flashing lights on the road is intended to indicate urgency for moving vehicles like ambulances, fire trucks and police cars--or stationary road blockages and stalled vehicles. By using hazard lights or flashers during a downpour or heavy fog, motorists confuse other motorists about their situation. Imagine 15 cars flashing their hazards at the same time--that is 60 lights flashing, which may obstruct or distract from a more urgent flashing light signal like that of an ambulance, fire truck or even a dangerous road obstruction.
Maricar Parco (car industry executive) - We all know that we should only turn the hazard lights on when in full stop. But I’ve learned that in the Philippines, that’s not exactly the case. In the rain, many drivers turn on the hazard lights maybe to ensure that they are visible to other drivers. I believe that’s because that’s what they see or how they were taught. Having said that, we obviously need to educate the public so we can all drive safely, especially during the rainy season.
Anjo Perez (motoring journalist) - A number of Filipinos tend to interpret laws to suit them best. Most Filipinos argue that there is no actual law that regulates or prohibits the use of flashers or hazard lights. There is, in fact, a Presidential Decree signed by Ferdinand Marcos back in 1973, which makes it unlawful to use flashers on vehicles, except during emergencies. The decree reads: "Flashing devices actually impede and confuse traffic, and are inconsistent with sound traffic discipline and control on the highways, and in effect constitute a major problem in the maintenance of peace and order." Flashers or hazard lights are used for a reason--if your car becomes a hazard on the road. Cars that encounter problems usually pull to the side of the road and turn on the hazard lights to inform approaching vehicles about the impending road hazard, which is the parked car. Some people say they use the hazard lights during a heavy downpour or in "zero visibility" to tell other motorists that "they are there--on the road." In the first place, if the road condition provides poor or zero visibility, people should not be driving at all. People who use the blinkers while driving don’t realize that other motorists behind or in front of them won’t have any way of knowing their intentions--whether to go left or right, or even to stop--making them more of a danger while on the road. A heavy downpour is not an emergency. For other motorists to know you are on the road, just turn on your car's headlights or park lights, and that will do. Leave the hazard lights alone! This is one of the main reasons the above-mentioned decree was signed, because the flashers actually impede and confuse traffic.
Arlan Reyes (car industry executive) - No to hazard lights while driving in the rain. Unless your car has useless park lights.
Manny de los Reyes (motoring journalist) - I believe the hazard lights shouldn't be used when the vehicle is moving with the flow of traffic. An exception is when the vehicle is in motion but driver or vehicle mobility/safety is compromised, regardless of weather conditions.
Raymond Rodriguez (car industry executive) - It is obvious that hazard lights are only to be used for emergency situations. I am not sure if we have laws here in our country that specifically define the usage of hazard lights. To begin, we should have a law/regulation on this matter, then motorists will have to follow. Most Juans will use the hazard lights when there is hard rain or almost zero visibility. It is true that it can cause confusion and won’t give the other motorists a picture of the real situation. Strictly speaking, only the headlights should be turned on. If I’m not mistaken, even in Japan they use hazard lights temporarily when there’s an abrupt slowdown due to accidents to signal other motorists to take caution and slow down. What is important for us is to educate our motorists on the proper way of using the hazard lights--especially what to do during heavy downpour or typhoon. In summary, headlights on would be the proper way to drive in the rain. It is about time someone wrote about this.
Botchi Santos (motoring journalist) - International traffic standards dictate that we should only turn the hazard lights when stationary.
Sophie Delos Santos (car show organizer) - No, driving with hazard lights in the rain is not okay and not right.
Vernon B. Sarne (motoring journalist) - There is a passionate debate going on about this topic in this country largely because Filipino drivers got used to the practice and nobody really bothered correcting them. It’s almost like attacking an ancestral religious belief. But if you just look at the issue with an open mind, you’ll realize this: The hazard lights exist to warn other motorists that they should steer clear of a road hazard--which, in this case, is the car flashing the hazard signal. Now, imagine this very hazard cruising with you on the highway. How do you get away from a road hazard that’s traveling next to you? Oh, but it shouldn’t matter because your own car is a hazard, too, right? Because you also have your hazards on. So are the cars to your left, the ones to your right, and the ones behind you. Great. Everyone is a hazard! What a hazardous scenario.
Frank Schuengel (car enthusiast and road safety advocate) - I don't think you should switch them on. It creates an additional distraction (or indeed multiple ones) and further clutters the field of vision in already challenging conditions. If anything, it makes things worse and just switching on normal lights should suffice. But it’s okay to switch on hazards if we are approaching a clearly visible traffic jam ahead. Say I'm going along SLEX at a reasonable speed, and I see that traffic ahead is stopping for whatever reason, I will hit the hazards while slowing down to prevent anyone behind me from plowing into the back of the traffic jam. Also, all cars are fitted with rear fog lights If I remember correctly. German regulations stipulate that these may be used if visibility drops below 50m. If a downpour, storm or fog is indeed so bad that visibility is drastically reduced, this might be an option instead of hazards.
Paulo Rafael Subido (motoring journalist) - Using hazard lights in the rain is not right. It's a silly practice that is also dangerous. Using the headlights is enough. Using the hazards during a downpour can drown out the brake lights and also render signal lights useless. Why is the practice so rampant? The reason is beyond me.
Dinzo Tabamo (motoring journalist) - I can understand the bandwagon effect when I see vehicles around turning on their hazard lights, and for a moment it does feel like it makes sense. But the safest and best way to use the hazard lights is for their true purpose: real emergencies.
Steven Tan (car industry executive) - It is hazardous and dangerous to turn on the hazard lights when driving in the rain.
Mark Tieng (car industry executive) - We definitely shouldn't use the hazard lights when it's raining. For visibility, we should turn on our front and rear fog lights, and if our cars aren't equipped with those, turn on your headlights and taillights instead. That way, you are visible to both directional traffic. You should still be able to use the signal lights when turning or changing directions.
Alvin Uy (car show organizer) - For me, hazard lights should not be turned on during heavy downpour. You should turn on the headlights instead. Flashing your hazard lights disallows you to activate your turning signals, which makes it dangerous if you switch lanes. Hazard lights are meant for stationary situations to warn oncoming traffic. Sadly, I always see a lot of people do it during heavy downpour.
Nic Uyliapco (car enthusiast) - No, it’s not okay to turn hazard lights in the rain. Unless you're having vehicular problems and you intend to stop by the curb or something.
Andros Villaraza (car industry executive) - It is not right to turn on the hazard lights while the car is moving, whether it is raining or not--or even in a convoy. Also, most drivers of car dealers have this habit of turning on their hazard lights when driving a brand-new car to deliver the unit to a showroom or a customer. Totally wrong. Hazard lights are only used during an emergency standstill just like the early warning device.
Anika Salceda-Wycoco (car industry executive) - Hazards are only to be used in the case of an emergency. During heavy downpours, drivers should slow down, keep a safe distance from the vehicle in front of them, make sure the wipers are on high and the lights are on--not the hazards! How can the car behind you or next to you know that you are changing lanes if your hazard lights are permanently on? Nothing like this happens over here in Detroit.
YES, IT'S RIGHT AND SAFE TO USE THE HAZARD
LIGHTS WHEN DRIVING IN THE RAIN
Japheth Castillo (car industry executive) - Turning on the hazard lights during heavy rain is, in my opinion, okay. It improves the visibility of slower cars to those who drive fast. After all, not all of us have the same driving skills.
Mikko David (photographer) - For me, it’s okay, even though I don't personally do so. The whole point of having hazard lights on is to catch motorists' attention. In low-visibility situations--like during heavy downpour--having hazards on does two things: It makes the other car visible to you and slows you down. So in this sense, hazard lights turned on while driving in the rain serves a purpose or two. I personally don't mind. To me, it just looks like the flashing red lights in Formula 1 during a wet race. When I still had my CR-V, I wired a flasher relay to my third brake light to make it flash independently via a switch that I would turn on during a heavy downpour. Just like F1.
Mark Peckson (advertising industry executive) - I feel like it is okay to turn on your hazard lights during an extreme downpour. I know this practice is frowned upon in First World countries. However, they don't have the kind of torrential rain nor the poor street lighting conditions that we have over here. During strong typhoons, our roads are dark and visibility is terrible. Hazard lights help other drivers see you through the downpour.
GP Reyes (car enthusiast) - Honestly, I think it’s okay. It does help visibility--contrary to what people are posting online. It's like all these people saying "Boracay" and not "Bora." Hello? I used to call it Bora when I went there in the ’80s. It’s the same thing when drivers use their headlights to flash someone at an intersection. Only Pinoys do that. But hey, it helps. Seriously, there’s no harm in putting the blinkers on. It keeps me driving slower when I see that cars around me have their blinkers on in the rain. That means it's really effing raining, and we should all slow down.
Joseph Felix Gregory Salgado (government agency officer) - It's okay if visibility is compromised because of the downpour. Based on experience, it has saved me--zero visibility, nighttime. Couldn't see oncoming traffic when an SUV suddenly appeared in front of me. Fortunately, he saw my blinking hazard lights. The fog lights weren't much help.
Vince Socco (car industry executive) - If it’s really pouring and visibility is poor, and you’re driving at lesser-than-normal speeds--especially due to flooding--then I think the use of hazard lights is certainly alright. Those conditions are hazardous indeed. In Japan, they actually switch on their hazards to indicate a coming traffic jam or road accident that may cause them to slow down abruptly. It’s something of a warning to those following that a hazard is ahead.
Paul Williamsen (car industry executive) - In the US, laws about hazard-light use vary from state to state, but many say this is not legal. State laws may sometimes say that if visibility is that bad, you should get off the road and stop driving. But I think that using flashing four-way (front and rear) hazard lights in poor visibility (fog, torrential rain, dust, smoke) is a generally smart idea. It may help to get the attention of someone who is following the taillights in front of them without realizing that those taillights have slowed dramatically or stopped moving. Signaling of turns certainly becomes an issue when everyone has their hazard lights flashing, but when the rain is that bad, you just want your car to be seen.
Reg Yuson (car enthusiast) - I think it all depends on the road visibility conditions, especially on a two-way street. For instance, I was in Tagaytay and there was heavy fog at the ridge with almost zero visibility. My car doesn't have fog lamps so I turned on the lights at low beam. But I noticed that oncoming vehicles with headlights on were not very visible from a distance, and I thought this was an accident waiting to happen because Tagaytay has winding roads. I also noticed that some of the oncoming vehicles with their hazard lights on were more visible--especially those coming from the opposite direction--from afar because the orange/red lights had longer light waves than your usual halogen or even LED headlamps. I guess it really depends on the driving conditions. If it's foggy or there is extremely heavy downpour with compromised road visibility, then we can consider all moving vehicles as road hazards, and thus turning on the hazard lights will be safer because it can give other drivers a better approximation of the other cars’ distance and location.
Antonio Zara (car industry executive) - I think driving in the rain with the hazard lights on is okay if visibility is poor.
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