• alienanimals@lemmy.world
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    7 days ago

    Intelligent people leave a space of about two cars ahead of them on the freeway.

    Stupid people think that space must be for them.

      • fine_sandy_bottom@lemmy.federate.cc
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        7 days ago

        It depends.

        On a well developed well maintained “freeway” with multiple lanes, shoulders for break downs, gentle curves, et cetera it’s common. 3 car lengths is more common here I think.

        That said, on a “highway” (interstate?) without everything listed above I aim for 2 seconds, which is about 60 metres at highway speed.

  • Dearth@lemmy.world
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    7 days ago

    When i was 13 bill Clinton told me 1 car length per every 10mph i was traveling at. Ive been following that advice ever since

    • Dozzi92@lemmy.world
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      7 days ago

      And I know it’s state dependent, but the highways by me, each white line is about one car and each gap is one car, so if you’re doing 50, having two to three white dashed lines between you and the car in front of you is probably good.

      • SuperSpruce@lemmy.zip
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        7 days ago

        Fun fact: In most states, this length is 40ft, but there are some exceptions, like CA, where it’s 24ft or 48ft depending on the road.

  • Godric@lemmy.world
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    7 days ago

    Lord I hate those fucking cunts who see two car lengths of space as an invitation. I’m going 85, you’re going 75, don’t suddenly hop in front of me because the clown in front of you is going 70.

  • seth@lemmy.world
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    6 days ago

    I always heard “2 seconds of space” which is a lot more than a few car lengths, to give yourself time to react to both what’s in front of you and to the sides, and account for if their brakes perform better than yours. Two seconds of distance is a lot, though, and kind of impractical in traffic.

    • placatedmayhem@lemmy.world
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      6 days ago

      The recommendation changed from car lengths to seconds decades ago, but wasn’t well communicated fwict. I learned car lengths from my dad and then seconds when I got my motorcycle endorsement.

      If everyone were leaving 2 seconds of space, it also reduces stop and go traffic that is caused, or at least exacerbated, by the traffic wave phenomenon. But that’s even less well socialized.

  • Sam_Bass@lemmy.world
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    7 days ago

    yeah me too. i get a lot of rollerskaters squeezing into the space so i keep backing off til theyre all jammed ass to mouth like a human centipede. gotta keep my distance for when the chain binds. and it will

  • ChaoticNeutralCzech@feddit.org
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    8 days ago

    The gap you leave should be speed-dependent and about 2 seconds to allow for reaction time. Yes, this caps the highway’s capacity to 0.5 cars per second per lane but roads are inherently inefficient.

    • BalooWasWahoo@links.hackliberty.org
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      8 days ago

      Aye, and 2 seconds is the bare minimum. A company I have worked for wanted 4 seconds between you and the car in front. That always felt a little much, but it definitely helped prevent wrecks.

      • Capt. Wolf@lemmy.world
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        8 days ago

        In my state, it’s one car length(15-20 feet) for every 10mph. Good luck getting anyone to actually follow it though! Getting on a major highway here is like the Autobahn.

      • where_am_i@sh.itjust.works
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        7 days ago

        2 seconds assumes an instantaneous reaction and perfect road conditions. In the EU they’ll teach you about 3s and at least +1 in poor conditions.

    • Mr_Blott@feddit.uk
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      7 days ago

      I was taught to look when the car in front drives past a landmark like a lamppost, then say to myself “Only a fool breaks the two second rule”

      If you pass the lamppost before you finish saying it, you’re too close

      • Sharp312@lemmy.one
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        7 days ago

        This is the only good answer. No need to distract yourself by figuring out your speed and guesstimating your gap like others are saying. Just count the seconds whenever you need to

    • GissaMittJobb@lemmy.ml
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      7 days ago

      3 seconds is the guideline I’ve been taught here in Sweden, but yeah. Riding too close is crazy dangerous and I don’t understand why people keep doing it.

  • Drusas@fedia.io
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    8 days ago

    If you’re only two lengths away from the car in front of you while driving at highway speeds, you are tailgating. Back off. It’s far more dangerous than speeding.

    • tonyn@lemmy.ml
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      8 days ago

      Help me out with this, because it’s driving me crazy. Whenever I leave anywhere close to 2 seconds between me and the car on front of me, someone cuts in, and I’m now too close to them, so I slow down, leaving a 2 second gap, and another cuts in. Rinse, repeat. I end up being the slow ass that everyone keeps zooming around unless I tailgate.

      • Dr. Wesker@lemmy.sdf.org
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        8 days ago

        It just be that way. Idiots will see your safe following distance as their opportunity to switch lanes. Just keep being the safe one.

      • Kecessa@sh.itjust.works
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        7 days ago

        Just… Don’t care? Let people in and adjust the distance with them. Driving is an involved process, get a car with adaptive cruise control if you want one that will do exactly that for you.

        • tonyn@lemmy.ml
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          7 days ago

          I guess it’s more than just “caring” - I feel that we’d all be a lot safer if we were all going the same speed instead of inviting people to dodge in and out

          • kmaismith@lemm.ee
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            7 days ago

            It would be safer if we were all riding the train/bus. Getting in a car in america is accepting the risk that you share the road with everyone. no matter the qualifications or mental state we still all gotta get to work/grocery store/wherever, and the only way is by ~4000 pound metal speed box.

            Worrying about safety on the highway is about making sure you are in situations you can handle and react to, staying attentive to the styles and mental states of other drivers and being a step ahead of the road conditions

            • tonyn@lemmy.ml
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              7 days ago

              Unfortunately I can’t see how public transport would be feasible without accepting that the vast majority of places I might want to go are simply inaccessible, and the places I could go would take 3-5 times longer. Case in point, there are no public transportation options to get to my son’s high school. It would be a 35 minute bicycle ride. I can drive there in 12 minutes. Getting to my local Wegmans would take 37 minutes by bus. I can drive there in 9 minutes. I live on the outskirts of a medium size city on the east coast in a low density residential neighborhood.

          • Kecessa@sh.itjust.works
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            7 days ago

            But people need to change lane sometimes and if you’re the one giving them the space to do so then more power to you, don’t complain

      • MeatsOfRage@lemmynsfw.com
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        7 days ago

        Let them hop in and keep your 2 seconds. I used to have a 40 minute commute and on a busy morning would have 10-15 people do that. Know how much time that sets me back? 20 to 30 seconds. Following this rule I have a 25 year clean driving record and I guarantee these lane hoppers can’t make that claim

        • funkless_eck@sh.itjust.works
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          7 days ago

          it’s probably even less, maybe even negligible because of traffic lights at either end: you can’t calculate a single journey because you’re never going to hit the same light exactly the same every time. I have four lights between my house and the freeway, and 7 between the freeway and one of the sites for my job. Each one adds between 0-60 seconds randomly for an average of 6 minutes sitting and waiting per day. I would have to have a commute of like 120 miles of uninterrupted freeway driving for that to matter.

    • Takumidesh@lemmy.world
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      8 days ago

      At 65mph, you cover two car lengths (~30 ft) in about 1/3 of a second.

      Typically human reaction time for braking is about 1.5 seconds.

      If something went seriously wrong in front of you (like a sideways car, or a hidden obstacle in front of the car in front of you) you would have covered 10 car lengths before your foot touches the brake pedal.

  • IMNOTCRAZYINSTITUTION@lemmy.world
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    8 days ago

    nothing gets me more pissed off than when I’m driving the speed limit on an open road with an open passing zone, no one coming towards me or ahead of me, and some dipshit decides to ride my ass

    • stoy@lemmy.zip
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      8 days ago

      Then you need to lift off the accellerator, don’t brake check or anything, just slowly slow down.

      If the car behind you won’t give you enough safety margin to maintain a high speed, then your only option to maintain safety is to reduce your speed so that the safety margin they give you is enough to stop in time for an accident.

      Here in Sweden we have plenty of roundabouts, I will use those to also get rid of annoying drivers who just can’t manage their distance, if I have someone like that behind me when I get to a roundabout, I just drive a full lap of the roundabout and let them pass.

      I will allways let these guys past when I can, they are in a rush to their own accident, and I am not, let them pass and and make them stop being my problem, if I can’t find a place to let them pass I will reduce my speed to compensate for their lack of safety margins

        • stoy@lemmy.zip
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          8 days ago

          It isn’t even a justification, it is simple defensive driving, as I was taught in driving school, and reenforced by my dad many times.

      • greenhorn@lemm.ee
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        7 days ago

        Sometimes I increment my cruise control down a mph at a time to see how much I can get them to slow down

        • Honytawk@lemmy.zip
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          7 days ago

          I just clean my windows.

          The speed and distance will make it so all the cleaner fluid will spray on their windshield. Making it all nasty.

          Feels like I am driving a spy car.

        • stoy@lemmy.zip
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          7 days ago

          My car can only increment in 5km/h steps, snd it is a bit too large to do this, but I would do this if I could

    • JovialMicrobial@lemm.ee
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      7 days ago

      Or you’re in the right hand lane and people are still tailgating you even though you’re going 70mph.

      Some people are unnecessarily aggressive on the road. Probably because they have unresolved emotional issues and take it out on other drivers. At least that’s what I tell myself.

      • FuzzyRedPanda@lemm.ee
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        7 days ago

        Probably because they have unresolved emotional issues and take it out on other drivers.

        Oh they absolutely do.

        Besides guns, motor vehicles are probably the most physically powerful things most of us (in the US) have the freedom to control in our lives. And there are almost no restrictions on allowing someone to drive when they can’t or won’t regulate their emotional state.

    • Trainguyrom@reddthat.com
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      7 days ago

      I tend to annoy people by dropping off the gas much sooner for lights than strictly necessary, but by gently slowing I both save gas, wear and depending on the timing of the light I can often even time it to miss the red entirely

  • BilliamBoberts@lemmy.world
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    7 days ago

    I leave enough room for me to have time to react and give the person behind me enough time to react to my breaking. Because most people drive way too close to avoid a rear-end collision if I have to slam my breaks for an emergency. Sometimes that means I’m 4, 5 or 6 car lengths away from the car in front of me, but that has the added benefit of pissing off tailgators who will almost immediately choose to pass me which works out great for me. The less space the person behind gives, the more space I leave between me and the person in front.