100 points

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.

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43 points

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.

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8 points

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.

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2 points

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.

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22 points

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

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4 points

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

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6 points

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.

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5 points

2 isn’t much, over here they recommend 3 at highway speeds

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84 points

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.

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39 points

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.

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46 points

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

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31 points
Deleted by creator
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21 points

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.

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7 points

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

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7 points

Just be safe. You’re still close to your desires speed

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3 points

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

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5 points

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.

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1 point
*

Beyond “don’t care” - you get to be the traffic hacker who improves traffic for everyone. yayyy

Credit for above I think: Traffic Waves

trafficwaves.org

Anyone who wants to test how this can work?

Check this old-school site:

traffic-simulation.de

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17 points

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.

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1 point
*
Deleted by creator
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38 points

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

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56 points
*

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

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25 points

I already subconsciously do this because I know it pisses them off, but I like your justification much better

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11 points

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.

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3 points

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

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4 points
*

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.

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1 point

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

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5 points

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.

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4 points
*

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.

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4 points

Its always a huge pickup truck too. I look in the mirror and just see the front grill

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3 points

Try putting on your right blinker, sometimes they get the message you’re encouraging them to pass.

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15 points
*

If that doesn’t work, there’s always the Chechen wave

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3 points

*Check local state laws for applicability

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37 points

If what you’re doing makes idiots angry, feel good about yourself and keep doing it.

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1 point

I’d be fuckin raging if someone was driving two car lengths behind me. That’s fucking idiotic

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6 points

Yeah, when you’re going 90km/h, it’s fucking idiotic. It’s way too fucking close, you’re going to kill someone. Random brake check incoming!

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4 points

I’m always tempted to do the brake check thing, but that’s fucking idiotically dangerous as well!

I just take my foot off the throttle and gradually slow down until the shitty driver passes me

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1 point

I assume the post is describing a 20 mph school zone because then yes, perfect thanks

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-2 points

Why? Do you want them to tailgate you instead?

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5 points

That is tailgating!!! 😂

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32 points

More space means less braking, reducing bunching up. Check this article on traffic waves out

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8 points

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

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