Make it make sense
-
This post did not contain any content.
basically it's a thing with cars where if a single car slows down for any reason, even slightly, it causes a cascade effect that leads to traffic jams.
Yet another reason why cars suck.
-
The issue with this style of lane design is it basically doubles the amount of lane changes that lane experiences, which can make it the most dangerous possible space if exits are close together. I've lived around Dallas. It's scary.
-
This post did not contain any content.
People changing lanes
If everyone stuck to the driving lane and only moved over to pass one car in front of them then there’d be less.
-
This post did not contain any content.
Similar to https://en.m.wikipedia.org/wiki/Turbulence
The gist of it is that once you reach critical density people can not drive homogenously anymore and (de-) accelerate constantly to not bump into the next car. The problem could be alleviated with self driving cars which negotiate a uniform speed. -
Adding to this, more collector-distributor roads that parallel the highway on both sides to reduce the weaving of people entering and exiting.
This is also why I hate cloverleaf highway intersections, the merge period is way too short and the speed delta can be high.
Just one more road bro it will fix traffic
-
This post did not contain any content.wrote last edited by [email protected]
Its because of two things. One is that people hog the passing lane or try to pass slowly so it takes them a few minutes to overtake a few cars, and also because people drive at different speeds. Some people drive at the speed that feels comfortable, others drive the state imposed speed limit. This creates pockets of dense traffic, and then people try to pass, but there is always the person who tries to pass as slow as possible because they are going a few mph over the speed limit.
Its really just a bad combination of laws, and drivers who are terrified of breaking the law, and people who dont know how to drive correctly in a way to reduce traffic. Also many people are just never consider that others also need to use the roads. They don't care about traffic. Some people also have health issues, like blindness, or mental handicaps, which means driving at interstate speeds is about all they can muster.
-
Yeah ideally you put 3 seconds between you and the car in front of you. Gives a nice, springy cushion to not brake as much. Your mechanic will also be surprised how much longer your brakes last.
Too many people were taught, and still teach, the "two car's length" rule. Which is awful. 2 to 3 seconds is much better and intuitive to figure out.
You say 3, which is great, but I'd settle for 2. Most people on the highways around me leave more like 0.5; I sincerely think the vast majority of people greatly overestimate the amount of space in front of them to the next car.
-
Yeah, in theory it's great but every time I try it people just cut in front of me then slam on brakes causing me to have to brake then adjust then repeat ad nauseam. People suck.
wrote last edited by [email protected]Yeah, maybe I’m fooling myself but it really seems like hanging back more makes me have to do more sudden braking. Traffic seems smoothest when I’m close enough to discourage cut-ins …. Even if that means Im more at the mercy of traffic in front flowing down a bit
But as a corollary, this is one of the reasons fewer lanes are sometimes better. A main road near me proved this out when they cut back from two lanes in each direction to one plus turn lanes. There’s no more jockeying for position, no more cut-in’s and you no longer have to protect your gap. Traffic is smooth and calm, and it improved accident statistics. Most importantly timing to get through that section is consistently better!
-
That's also why the best way to relieve traffic is to go at a slow even pace without braking. Every time the someone in heavy traffic runs up the ass of another car and brakes hard, or swerves into the "faster" lane and make someone else brake to not hit them, they cause another brake wave. If you have a few cars intentionally just hanging back and cruising with a big enough gap between them and the cars jocking for position in traffic in front of them, then their brake waves do not propogate behind you and eventually traffic just picks up pace again.
Edit: side bonus, you still get there just as fast, but with a lot less stress fighting assholes for position (minus the ones who fly past you thinking you're the asshole for not riding someone else's bumper)
Adaptive cruise control FTW. Matches speed with the person ahead of me (up to the max that I set) and maintains a gap that I can specify. It starts slowing down long before I'd notice the gap closing if I were doing it myself, so the +/- acceleration is a lot smoother as a result.
-
This post did not contain any content.
The people at the front are morons and probably in the wrong lane.
-
It's usually a complex crowd effect created by many participants trying to maneuver among each other in slightly disperate ways.
In Portland OR, it really is because some dingbat slowed down to 20 MPH on the interstate for literally no fucking reason at all.
Often they do this because their car is barely limping along and they are trying to make it to the next exit.
-
Adaptive cruise control FTW. Matches speed with the person ahead of me (up to the max that I set) and maintains a gap that I can specify. It starts slowing down long before I'd notice the gap closing if I were doing it myself, so the +/- acceleration is a lot smoother as a result.
So, I don't know exactly how the adaptive cruise control works. But if it is slowing down and speeding up to maintain a specific distance, that does not fix things. The idea is to maintain a specific speed such that, as the people in front of you accelerate and brake, speed up and slow down, you have enough distance to not have to do that. You should essentially match their average speed with enough gap that their braking doesn't put them close enough to your bumper that you have to slow down yourself. Normal cruise control would be better (except mine won't set at speeds under, I think, 20mph) because your speed wont change. Adaptive cruise would make your drive safer, maybe, keeping you from being too close or failing to react to the change in traffic speeds, but I dont think it would solve the traffic issue itself.
-
"No John, YOU are the traffic!"
And then John was traffic
Traffic John is what they called him.
-
Too many opportunities for death. I'm more of a signal jam kinda guy.
Hold my jam I'm going in!
-
It's a great cover story until he meets someone at a party who loves that shit.
It's kind of funny. The writers probably thought traffic pattern analysis is boring because everyone hates traffic. Actually traffic pattern analysis is interesting because everyone hates traffic.
-
Often they do this because their car is barely limping along and they are trying to make it to the next exit.
wrote last edited by [email protected]This driver is distinct from that driver. We definitely have those too, and they have my sympathies. 10 seconds of engine death vs 10 seconds of brain death.
-
Similar to https://en.m.wikipedia.org/wiki/Turbulence
The gist of it is that once you reach critical density people can not drive homogenously anymore and (de-) accelerate constantly to not bump into the next car. The problem could be alleviated with self driving cars which negotiate a uniform speed.The problem is solved by connecting all the cars, and putting them on rails that are electrified. This way you move fuel off site, and the cars are synced by the connection.
-
Similar to https://en.m.wikipedia.org/wiki/Turbulence
The gist of it is that once you reach critical density people can not drive homogenously anymore and (de-) accelerate constantly to not bump into the next car. The problem could be alleviated with self driving cars which negotiate a uniform speed.Your solution is a dream. Real solutions already exist, it's called mass transit.
-
Similar to https://en.m.wikipedia.org/wiki/Turbulence
The gist of it is that once you reach critical density people can not drive homogenously anymore and (de-) accelerate constantly to not bump into the next car. The problem could be alleviated with self driving cars which negotiate a uniform speed.self driving cars which negotiate a uniform speed.
Until then, human drivers could approximate this system by all agreeing on a uniform speed. Maybe through some sort of app?
Or, this sounds crazy, perhaps the authorities could post signs by the side of the highway with the uniform speed printed on it?
-
It's usually a complex crowd effect created by many participants trying to maneuver among each other in slightly disperate ways.
In Portland OR, it really is because some dingbat slowed down to 20 MPH on the interstate for literally no fucking reason at all.
Taking I-5 into Vancouver from Portland is always horrific. Once you get over the bridge it always clears right up! A big part of that is all the on ramps. There's so many of them! So everybody is having to make way every 10 feet for someone merging in.
It's horrendous.
