Traffic not working correctly

[vfr]

I've been trying to deal with traffic jams and in the process discovered what I would consider bugs with the traffic AI.

1. Cars get of the highway using off ramp and immediately get back to the same highway traveling in the original direction. As off and on ramps have less capacity it immediately creates a jam.
2. Cars making left turn on lights controlled intersection do not yield to incoming traffic, creating a jam.
3. In a place where highway ends and becomes two way street cars make U-turn and get onto opposite direction of a highway, creating a jam with incoming traffic. It is not possible to add no left turn sign in this case.

This is just from observing the traffic for 10 minutes. I wander how many other things are there.

[Daedalos]

Drivers in game behave like drunken idiots. And it was not even funny, when someone from CO responed that it is not a bug ,but feature, because even in real life, some drivers behave like idiots.

[vfr]

Originally posted by Daedalos:

Drivers in game behave like drunken idiots. And it was not even funny, when someone from CO responed that it is not a bug ,but feature, because even in real life, some drivers behave like idiots.

That's great, made me laugh.

[TheKillerChicken]

The traffic is doing Unity Pathfinding user-agent things, with the exception of a spaghetti-code mess. In other words, it simply does not work intelligently, it simply is just doing random and non-sense based crap-assed pathing... I never have seen traffic take the long way just to get from the industry to the cargo terminal. Or civil traffic having physics fits for no apparent reason. I also noticed most traffic, when getting stuck will eventually teleport to their destination anyways...

[sternenstaub70]

Originally posted by Daedalos:

Drivers in game behave like drunken idiots. And it was not even funny, when someone from CO responed that it is not a bug ,but feature, because even in real life, some drivers behave like idiots.

Technically he was even right.
But the point is, in real life it's only a very small amount of people which act this way, but in the game it's most of the drivers.

It seems to be more likely that they mixed up numbers and forgot somewhere the percentage sign. As in: they wanted to make 0.5% of the drivers being idiots, but accidentally made 50% of them to idiots (=0.50 as number) by forgetting the "%" sign.

[Zero, Dark Knight]

Traffic doesn't work correctly in CS1 either, it was always really hard to get traffic to take different routes because it looked at the shortest route by distance - which included lane

so ye, traffic is broken in CS2, too.
Traffic and basically everything else. :p

[vfr]

Originally posted by TheKillerChicken:

The traffic is doing Unity Pathfinding user-agent things, with the exception of a spaghetti-code mess. In other words, it simply does not work intelligently, it simply is just doing random and non-sense based crap-assed pathing... I never have seen traffic take the long way just to get from the industry to the cargo terminal. Or civil traffic having physics fits for no apparent reason. I also noticed most traffic, when getting stuck will eventually teleport to their destination anyways...

Makes me wander if I should spend my time trying to avoid traffic jams. I noticed that traffic problems have minimal affect on happiness, usually just -1 points.

[General T.Montana Tropic Thunder]

Originally posted by vitali.fridman:

Traffic not working correctly

Multiple choice options:

A.) As designed
B.) We dont know what we are doing
C.) As implemented, live with it
D.) Maybe we will someday look into it
E.) Maybe we will someday acknowledge it
F.) Does it matter ?
G.) No time, we are trying to do a console version of this
H.) What year is it currently ?
I.) I like Stockholm

[vfr]

I just now realized were great majority of traffic is coming from. It's coming from outside connections and most of it are passenger cars. That makes no sense whatsoever. I'm going to stop worrying about it.

[girlaroundthecorner]

One thing I really like about CS2 is when I try to create a fix for a traffic jam, it seems to work, at least for a while. Whether it be asymmetrical roads or an off ramp, whatever, the traffic seems to ease. In CS1 it didn't seem to matter what I did, it just kept on coming unless I used mods.

[danko9696]

Well, in their own words "if you dislike the simulation, this game just might not be for you".

[Billy Lee]

Originally posted by muflox:

Originally posted by vitali.fridman:

Traffic not working correctly

Multiple choice options:

A.) As designed
B.) We dont know what we are doing
C.) As implemented, live with it
D.) Maybe we will someday look into it
E.) Maybe we will someday acknowledge it
F.) Does it matter ?
G.) No time, we are trying to do a console version of this
H.) What year is it currently ?
I.) I like Stockholm

you forgot to add
Deep simulation looks like this
and my favorite comment from defenders of this system -
"In my "random" place on earth, this is how they drive, I make a 180% turn on the highway. "

[Magic]

Generally speaking the game mechanic part is quite broken and there isn't much you can do to deal with 1).
For 2), it's a long dabated "feature" ever trace back to CS1. You have so,e unofficial ,ods at unofficial website which allows you to create split phasing traffic lights or even customized ones. If you don't want to use mods, there's a lot of unconventional left turns solutions exist, for example you can add two roundover at opposing side which allow the cars go straight-U turn-and then right turn. Plus some pedestrain underpass it should go fine. The solution is tedious, take more places, but it is a solution.
For 3) I'm not sure what exactly the situation is. Many people like to "ban left turn" at highway entrance but remember the left turn car won't disappear they will eventually make a U-turn somewhere. So ideally I'd suggest your two-way road at highway entrance (or artierary road) should use two separated one-way road (which hpysically blocks all left turn) with dedicated U-turn land between them.

[Bendak]

If only the U-turns were the sole issue...

Placing certain passenger/cargo buildings near a busy road causes all traffic on that road to pass through it. It seems random, but this occurrence is frequent, and the only fix is to demolish and rebuild the building until the issue repeats.

Inconsiderate drivers halt in the middle of the road, engage in erratic maneuvers, and change lanes without caution. Those intending to turn left cut across the right lane, exacerbating congestion, especially during heavy traffic.

The primary flaw with this AI implementation lies in its driving behavior, marking it as one of the least effective AI driving systems I've encountered.

Now, picture if collisions were enabled (and I'm not referring to simulated random accidents)...

[mikelleh63]

It seems in their effort to make pathfinding more dynamic, they missed a bit. The problem is that the car already in whatever lane turns into instant wimp. 4 lane highway at exit with a good size turn lane. Everythin is smooth, then one car cuts into lane (realistic) the car it cuts off slows or stops, then 2 more cars cut it off, it sits. Now traffic behind sees second lane moving and jump in that, meaning now lane 2 is seen as faster. Eventually someone in third lane sees this and cuts someone in lane 2 off, and that car now sits while 6 cars cut it off. AI now considers lane 3 fastest and more cars are now using it. The car originally stopped has not hardly moved by this point. They need to weight things to not make the original car an absolute wimp.

[srmacpherson]

Originally posted by vitali.fridman:

I just now realized were great majority of traffic is coming from. It's coming from outside connections and most of it are passenger cars. That makes no sense whatsoever. I'm going to stop worrying about it.

Have you checked if those are people moving-in? I've found that much of my external traffic happens after I build a new neighbourhood.