Traffic using wrong route, tips to fix this?

[abyss]

Check those two images. Red line represents the route they make, and blue line represents the route they COULD do instead, but don't do.

https://imgur.com/0RRmbWY
https://imgur.com/s220fp0

I don't understand why this is happening and I'd like to know how to enforce them to use a different route, rather than add unnecessary traffic into a roundabout that already has plenty of movement.

And please don't complain about my road layout. Please.

[me22ca]

Based on your road arrows when the highway becomes a 6-lane road, you're using some mods.

Are you sure you have no lane connectors or similar on the cloverleaf?

[abyss]

Originally posted by me22ca:

Based on your road arrows when the highway becomes a 6-lane road, you're using some mods.

Yes, I am. One of them is TM:PE, but it's one of the only mods that change the traffic heavily.

Originally posted by me22ca:

Are you sure you have no lane connectors or similar on the cloverleaf?

Not a single one. The cloverleaf is untouched.

[Streeto]

Hmm...

Are you certain they're all just coming from the other side of the interchange and doing a U-turn?

[MarkJohnson]

Before the roundabout picture. Not sure why you want traffic to loop around the roundabout. They don't seem to want to go over there? Otherwise, they would use it.

Into the roundabout picture. Not sure why a train station is there. It seems out of place and not serving much purpose and adds to traffic.

But you will have better luck posting a saved game instead. A stationary picture doesn't tell a whole lot, especially zoomed in so close.

[abyss]

Not trying to be a ♥♥♥♥, but what I see is a flawed AI. The roundabout is COLLAPSING, falling apart because of the traffic that uses it just to go back. All I wanted to do was make them use the cloverleaf instead of doing what they're doing.

I'm not interested in changing big things that cause little problems in the efficiency. There must be a way to stop all that traffic from unnecessarily using the roundabout, and if there's nothing I can do that wouldn't require a full change (ex. removing the roundabout completely or redesigning the whole road layout), I'll just wave the white flag and give up due to the AI being broken.

[MarkJohnson]

It has nothing to do with the AI, per se. You're the one placing buildings. Each building creates traffic. Your goal is to properly proportion the amount of traffic for each district you create. That's the main goal. This keeps vehicles at bey and roads clear.

The thing is, is you zoned your cims to not use the 4-leaf clover. There is nothing there the cims wants or needs. I mean if your go to work in the morning and your job is several miles north of town, why would you drive west?

The biggest rule you need to adhere to for cims are they are on a strict GPS type route. It is chosen by quickest route (shortest path with highest speed). It will not detour, so you may need to create alternate paths on the way on the roads, usually on and off ramps so cims don't have to circle a district or several blocks out of the way.

Just try not to use mods to fix it. It won't fix it and you end up wasting time learning to use the mod, only to find it has gotten worse over time and your city has become unmanageable and easier to start new than fix it.

This is why I suggested you post a saved game, then we can see your city in motion and better advise you on how to solve your issue(s).

I can't count the countless people with several hundred hours in the game and not reached 100k (final milestone) and many still at 20k and still clueless as they keep throwing mods at the game thinking it will fix their city.

[OneJasonBradly]

Originally posted by hand_sanitizzzzer:

Not trying to be a ♥♥♥♥, but what I see is a flawed AI. The roundabout is COLLAPSING, falling apart because of the traffic that uses it just to go back. All I wanted to do was make them use the cloverleaf instead of doing what they're doing.

I'm not interested in changing big things that cause little problems in the efficiency. There must be a way to stop all that traffic from unnecessarily using the roundabout, and if there's nothing I can do that wouldn't require a full change (ex. removing the roundabout completely or redesigning the whole road layout), I'll just wave the white flag and give up due to the AI being broken.

I think the roundabout is collapsing due to the train station and metro.
I don't believe traffic is driving off the highway just to return unless you are missing an off ramp somewhere else. Even if you did they would use the clover interchange.
The train and metro being so close to the highway and have a direct route to the highway will cause passengers to pull out pocket cars, because from there that would be the quickest route. I think this is what is happening here.
Edit; move the train station and metro to the street below. Even better, create a 'T' road off that road below. as if it were a T shaped driveway or entry and place the train and metro on that. The driveway thing would detour them from pulling out the pocket car. I suspect the parking garage is for the transit options? cause I think that should move too. This may not reduce the pocket car count but you will clearly see what is going down.

Off topic, that loop of rail you have on the rail station is not needed. If the rail line continued and that was your station by-pass then that would work. It's a little close but would work.

[K2P2]

Your problem is people needing to turn around to get to where they wanna go. Build decent highway on/off ramps that serve both sides of the highway so they don't have to turn around.

[Mr. Monday]

Chalk me up to being another one who thinks it's due to the location of your train station and metro.

[bear]

I would add a loop from the first exit round under the highway and connect it up to the mirror sliproad on the other side of the road. It would keep all of that traffic away from both the cloverleaf and the roundabout at the far end. One factor which can send traffic off on the wrong direction is speed limits. The slip roads will have a lower speed limit than the highway - the cars are possibly making the calculation that staying on the highway for longer is better since the speed limit is higher. They don't take into account that they can't do the speed limit because there's a massive queue!

[abyss]

So, I've fixed the situation (partially, but effectively) by making a small switch that goes over the roads before the cloverleaf, letting people switch roads. The issue is not the metro and train station, or literally anything. The problem was that traffic literally went all the way to the roundabout just so they could return, even though they could use the cloverleaf.

I'll call it an AI flaw, because there's no actual reason for them to do what they were doing.

The reason why I wanted a solution without having to build anything extra, was because the solution was already there; cloverleaf. But apparently there's no way.