It's a shame this is getting downvoted because it's true. In any level of traffic except stop-and-go--and even then to a large extent--you should be doing everything within your power to either pass the cars on your right, and/or move over to let cars pass you on the left. It is a vanishingly small number of scenarios where you are keeping pace with a car next to you and you're not in the wrong. This isn't just at high speed or on highways, any two-land road operates (or is designed to operate) this way.
That's not the same everywhere in the world though, and even in places where it is strictly passing on the left (or on the right in the UK, Japan and a few other places) 'keep your lane' tends to be the rule if the right hand lane is also moving at the speed limit (so you can't legally pass).
That way the carrying capacity of the road is higher. But when traffic is less dense 'station keeping' should be avoided at all times and if someone moves into my 'dead zone' or just to the left of me I'll gradually slow down to force them to finish their overtake.
> 'keep your lane' tends to be the rule if the right hand lane is also moving at the speed limit (so you can't legally pass).
Why are you in the lefter lane if you can't pass?
I've been in rush hour (where keep-to-the-right-unless-passing is very strictly enforced) in bumper-to-bumper traffic and the left two (out of 6) are completely empty and everyone is doing 'around' the speed limit. Some are in the right lane doing a few below the limit, some are in the left-most lane doing a few above.
Occasionally, someone who is late to work, emergency services, or whatever goes flying by in one of the left-most lanes.
> I've been in rush hour (where keep-to-the-right-unless-passing is very strictly enforced) in bumper-to-bumper traffic and the left two (out of 6) are completely empty and everyone is doing 'around' the speed limit.
I've been on interstates in every continental US state and I've never seen this, but I think something has been lost in translation because "bumper-to-bumper" and "everybody doing the speed limit" are mutually exclusive as I understand the terms. If everybody on the road can fit into the right lane with enough space in-between to do the speed limit, that is done but I wouldn't call that traffic "bumper-to-bumper". I would call that light traffic. Bumper-to-bumper is when the space between cars really starts to contract, because everybody is going substantially below the limit, or because people aren't maintaining a safe distance.
Once the road has too many cars to fit them all into the right lane at the speed limit, then in every state I've driven, cars start using the left lane for travel, not just passing. If the right lane is so full that it can only sustain 5 below the limit, then people start driving in the left lane and stay there for as long as the right lane won't support speed-limit traffic. In this kind of traffic you'll start to have cars moving fast alongside each other with low relative velocity.
Have you ever driven in Philadelphia during high-traffic, non-rush hour times? 75mph easily, with at most half a car length between every car. I didn't believe a friend's dad when he talked about "bumper-to-bumper 80mph traffic" in the highways around the Philly suburbs but it's absolutely the case.
!!!! 2 meters separation at 70 km/h gives you a tenth of a second to react to anything the car in front of you does, that's flatly insane. Where in the world do people drive like that?
Seriously, that's objectively insane. Try the ruler drop test for reaction times if you don't believe me, a 10th of a second to even initiate your response isn't realistic and obviously gives no time for the response itself to have effect. What I'm saying is that at a tenth of a second, you can't even start to press the brake pedal in time, let alone have enough time to actually slow down.
In America, with only 2 meters between vehicles the traffic would be inching forward at a snails pace, under 20 km/h at least. "Stop and go", as in people would stop their car and then drive forward slowly when a larger gap ahead of them appears.
If the car in front of you instantaneously goes to 0, yes.
Reminds me of driving in western Virginia, people drive insane there. This is going into Amsterdam in the morning. Highly recommend “Not Just Bikes” on YouTube if you want an interesting comparison between roads here vs. Canada/US.
Where is this? In eastern canada that's impossible to imagine - although most highways are 2-3 lanes, not 6, I couldn't imagine having a free lane on the side while having bumper to bumper everywhere else.
> It is a vanishingly small number of scenarios where you are keeping pace with a car next to you and you're not in the wrong.
I think it really depends on where/when you're driving. I find this to be a common scenario on interstates during rush hour:
I'm in the right lane, doing approximately the speed limit. There is a safe distance between me and the cars in front and back of me, but only just. If many more cars enter the road, traffic would need to slow down to maintain safe distances. In the left lane is the same situation, except they're averaging about 1 or 2 mph faster. In this situation, there are cars in the left lane passing very slowly, spending a lot of time alongside me. I could slow down below the speed limit every time a car passed on the left, to reduce reduce that loiter time. But this would make my driving less predictable to the drivers behind me (and waste a lot of mileage too...)
So normally, when the other cars are my size, I maintain my present course and speed, driving as predictably as possible to help the other drivers anticipate my course. Changing position in traffic is inherently risky, so I avoid making changes unless doing so is necessary to avoid something I judge to be more dangerous than the average. If a truck passes me on the left, I'll slow down to make the passing faster even if that means a car behind me has to brake. But if in that moment I judge the guy behind me to be even more dangerous, then maybe I won't. It's the kind of decision that needs to be made on the spot in a case-by-case basis. On interstates that are flowing fast near capacity, you need to be constantly evaluating the relative threat of the traffic around you.
I think if you're in the left lane only going 1 mph faster than the cars in the right lane, especially in traffic, something is wrong. Especially on interstates where lanes are typically wide and the road relatively straight, and in good weather & visibility, if you have any appreciable amount of traffic on the road it's much better to go 5-10 over to pass then get over to the right and go back down to the speed of the right lane than it is to be in the left lane holding up a line of traffic while you take 5 minutes to pass one semi.
In light traffic, I wouldn't. In medium traffic there often isn't that much choice, but in those situations I prefer the company of other cars my size, and preferably ones with attentive drivers (so I discriminate against Tesla drivers.)
Most people are pretty much unaware of anything outside of their car other than for the couple of seconds they look up from their phone to look at the car in front of them. Look to the sides? That's too much time away from the screen in their hand! /s (only partially)
Since my time of learning to drive, the requirement to have formal driving training has ping ponged in being a requirement or not. The number of hours as an observer is just as important as the hours being behind the wheel. One of the things repeatedly mentioned by the instructor was to not drive side by side any car unless absolutely necessary. It was also a recurring theme in my repeated defensive driving classes. I also have an uncle that drove trucks for a long time, and he would tell stories of things he saw on the road. A relevant story was when one of the wheels of a tractor-trailor doing 70mph down the highway lost the outside wheel of the trailer and seeing the damage it cause the car driving along side. All of that added together makes me never like to have a car on my sides and I will speed up or slow down (which ever has more space available) to avoid it. For those that did not have to take a driving course, this is just information they may never have been provided.
It is totally normal to just go behind one car without constantly overtaking or being overtaken. It is even actually safer then being constantly in and out of lanes.
