Cars use only 1 line in 6 lines road?

[quark.smith]

What am I doing wrong?
http://snag .gy/ZL5Mj.jpg

[Blake Walsh]

The basic thing is all the drivers are going to the same/similar destination (if I had to guess, it looks like vans bringing goods to a commercial district) so they are all choosing the best path, but when deciding which route to take they ignore the existence of other traffic, so they all end up trying to drive in the same lane which would be the shortest/fasted route if there was no other traffic.

My solution is to only use 2 lane roads (2 way) and highway ramps since if they're only going to use 1 lane, only give them 1. The other thing which helps a lot is to avoid chokepoints - that is give cims lots of options to get to other parts of the city and avoid funneling them onto main roads. If traffic is well distributed such that cims are going every which way instead of all going to the same place then lane use can be much more balanced, so I don't mean to claim that cims can't use more than 1 lane, but the lanes have to be going to different places; an example is ending a highway ramp in a 2-lane 1-way road, with one lane for traffic turning right and the other for traffic turning left. Another example is highways, you can have the left lane for traffic turning left, the middle lane for straight-through traffic, and the right lane for traffic turning right - this requires the offramps be placed so as to support it, if all off ramps are on the same side of the highway basically only two lanes will be used.

[Waggy]

Cars will stick to the turning lane if they're leaving the road at the next turn. When too many cars all want to turn the same way you get these long lines.

Think how you can let people go to where they want without taking this route, which creates a jam.

If they all want to go to that middle road can you find a way to connect the middle road directly to wherever these people are coming from? If not, then can you at least convince them to split the traffic from the road on the left to the road on the right? Add shortcuts and see what happens.

Depending on what you do you might solve it or simply transfer the problem from one spot to another, but chasing the problem away is part of the fun. :)

[Jethro]

There are excellent traffic guides, one written by an actual traffic engineer. I funnel all my traffic onto main roads and boulevards (two one way roads). I also use very few roundabouts - only where they're needed (especcially in situations where all the traffic is going one way, like you describe).

There are many ways to play this game. Fortunately, real world logic also works.

[Baleur]

Well its also due to a bug where the car ai wont use more than 1 lane to turn, even if you literally have 6 lanes all able to turn where they wanna go, they will still only use 1 of those lanes.
Which is why more than 1 lane roundabouts are pointless, cars will only ever use the outer most lane.
Except if you use the traffic ai mod which allows them to change lanes if a lane is too congested.

[quark.smith]

Originally posted by Jethro:

There are excellent traffic guides, one written by an actual traffic engineer. I funnel all my traffic onto main roads and boulevards (two one way roads). I also use very few roundabouts - only where they're needed (especcially in situations where all the traffic is going one way, like you describe).

There are many ways to play this game. Fortunately, real world logic also works.

Any link to this guide written by an traffic engineer would be fine. If you have this link can you paste it here?

[agrimes]

I find that each road consists of multiple segments. Each segment is treated like an intersection, (under traffic+ at least) and the cars will happily change 4 or 5 lanes at any of these intersections causing major problems, so at each of these intersections, I have to use the lane guide feature in traffic manager to say, STAY IN YOUR LANES, PUNKS!!!, and it works fairly well until the game crashes and you get null pointer exception loop when trying to access your save.

[Jethro]

I think this is it... http://steamcommunity.com/app/255710/guides/#scrollTop=293

The same guy has two traffic tutorials, both excellent.

[quark.smith]

Originally posted by Jethro:

I think this is it... http://steamcommunity.com/app/255710/guides/#scrollTop=293

The same guy has two traffic tutorials, both excellent.

Thanks a lot. There is many good helps in these tutorials. Some things that I don't know, so I'm going to use them.

[Jethro]

Originally posted by quark.smith:

Originally posted by Jethro:

I think this is it... http://steamcommunity.com/app/255710/guides/#scrollTop=293

The same guy has two traffic tutorials, both excellent.

Thanks a lot. There is many good helps in these tutorials. Some things that I don't know, so I'm going to use them.

Don't thank me. I didn't write the (awesome) guide. Thank the author. He deserves your gratitude.

Good luck with your city!