Traffic only using 1 lane when there is 6?

[Fast]

I use TPE to manage lanes and what not but its ♥♥♥♥in infuriating to see traffic all end up in a singular lane when there are 3 to turn in...

[grapplehoeker]

What reason is there for any single vehicle to use any other lane than the one that gets them to where they need to go?

[Haildodger]

Use better designs to make them spread out. TMPE is a good mod, but better designs can fix most issues. .

I'm not using any mods in this game:
https://steamcommunity.com/sharedfiles/filedetails/?id=1762768278
https://steamcommunity.com/sharedfiles/filedetails/?id=1762768301
https://steamcommunity.com/sharedfiles/filedetails/?id=1762768250

Like grapplehoeker's question implies, give them reasons to use the other lanes.

[MarkJohnson]

Single file backup is cause from a jam. Clear the jam. Probably just need an alternate route for them to get to that area. A single road doesn't have unlimited capacity.

[Saber Kitsune]

As others have said, they need a reason to use the other lanes. If a single lane is the only one that leads to their destination, they'll pile into that lane. Fairly easy to get traffic using all lanes even without mods: https://i.imgur.com/jSMqPLg.png A clearly busy highway with all 12 lanes being used.

[antzkillr]

How many times are people going to ask this same question?

[Lu5ck]

The AI is stupid, it will pick the lane that go to their destination, even if that lane has an exit before their next next exit

[MarkJohnson]

Originally posted by Lu5ck:

The AI is stupid, it will pick the lane that go to their destination, even if that lane has an exit before their next next exit

You forgot about the part where the mayor set up those series of events that confused the AI and cause the jam.

The mayor's the one who is misplacing roads and buildings causing these issues. not the AI.

The AI is just doing what mayor told it to do.

[Frostbite]

Originally posted by MarkJohnson:

The AI is just doing what mayor told it to do.

LOL. I wish.

[OneJasonBradly]

Originally posted by Lu5ck:

The AI is stupid, it will pick the lane that go to their destination, even if that lane has an exit before their next next exit

Not true, it only does that if there are issues.
I ask you to examine this clip for evidence of your observations.
In fact I circle, show and describe instances of the opposite being true.

I don't use Traffic Manager, If you wish to claim I am forcing traffic into lanes.
https://steamcommunity.com/sharedfiles/filedetails/?id=1429565631

And here even when I placed the six lane and commenced repairs to this road length the traffic still used all the lanes regardless of the congestion involved.
https://steamcommunity.com/sharedfiles/filedetails/?id=1533844801

Originally posted by Frostbite:

Originally posted by MarkJohnson:

The AI is just doing what mayor told it to do.

LOL. I wish.

Mark is correct. It is the lack of knowing the traffic rules or knowing that traffic management is a thing that causes issues.

[Lu5ck]

They only filter for long distance but for nearby, they don't switch as much and if the exit choke up, everything else choke up even if they could filter to keep moving since they not going for that exit.

[Fel]

Something that tends to make them use more lanes are roundabouts too, because all of the lanes are going to turn.

If you can, using the so called "lane math" you can try to force the game to make lanes as "only for turning" instead of "straight or turning", which helps a lot when you can do it.

Making good intersections is one of the player skills in this game (one that I am far from mastering I might add), but there are two good "rules of thumb" that tend to make it a bit easier.
"No close intersections on your high traffic roads" and "make good use of the difference of lane amount on each road (also frequently called lane math)".
As you continue to play and try things (or look them up) you will be able to notice some of the problems on your own designs, but more importantly you will be able to know where to start when trying to fix it.

Mods like traffic manager obviously help a lot when you have a clear idea of where each lane should go but even that mod can't fix problems like intersections everywhere on your main road and such.

[Saber Kitsune]

If you can, using the so called "lane math"

I call it lane flow. In other words, which lanes lead where. To me, lane math refers to something more mundane: how lane arrows are calculated. Similar but different concept.

Originally posted by Fel:

Something that tends to make them use more lanes are roundabouts too, because all of the lanes are going to turn.

Not in every case, due to how lane flow works. A roundabout built entirely out of 2 lane one ways will result in the right lane being used inbound, as well as within the roundabout. Even if you have two turn lanes entering the roundabout, the left lane can't exit it, so therefore isn't used. If you upgrade the roundabout itself to highway segments, you end up changing the lane math, and therefore lane flow. This results in a more balanced lane usage(albeit, still not ideal)