Are roundabouts worth it?

[rovaira2]

Are roundabouts worth it? It seems like they just end up slowing things down especially when there is a lot of traffic.

[zaltocleotl[Banned@Paradox]]

They CAN fix heavy traffic intersections. They can also make it worse. Depends on the situation. They are often worth a try. Make sure they are not too big or too small, because either way they will make less of a good difference and more of a bad difference.
So size matters. LOL

[icedude94]

On high volume roundabouts, don't have any roundabouts connected by roads to other roundabouts without a traffic light intersection in between.

Traffic lights are useful to break up traffic going into a roundabout so that other vehicles aren't stuck waiting forever to enter.

Otherwise roundabouts are really good for intersections with lots of traffic trying to make left turns and cross the opposing traffic lane but that can also be solved with using jug handles for turning.

[caseyas435943]

Just like real life. If its busy they suck. They will cause more traffic than they help.

You can do it better with traffic lights more times than not. Once of course mods work, and traffic manager is there to let you use traffic lights right. Not the base game night traffic lights in the game now.

You can have left turn only. Time one way long or shorter etc.

I use roundabouts very little anymore. They just aren't worth it 90% of the time.

If it's not busy sure. But if it's not busy why put one in.

[General Zod ™]

New players love it.

I never use because it's not CONTROL.

[purrcat33a]

The ones in the game are often too small for larger traffic volumes and simply adding in more lanes doesn't always help.

I tend to build my own larger roundabouts if volumes are high. They still clog up but are a more realistic representation of what is normally built, certainly here in the UK.

[Moderate Misery]

They only situations they fail in:
-Very high volume
+very unbalanced directions; such as most cars going one way from one direction, therefore not creating any gaps for another.

[Major Kudos™]

If you want to smash the big city quickly roundabouts if set up correctly are an absolute necessity. You need a LOT of them to see the effect.

Just like in real life (oddly) these Cims seem to gradually learn them and use them properly. You just must eliminate all crosswalks and lights in sight of each one. And more importantly match the incoming roads and styles. 8 and 6 lane roads and 4 lane highways work best. Along with the above delete parking anywhere near one.

All of my highway off ramps have at least 4 bouts with the average 6 when you include the subdivision entrances on each end.

Match lanes, for example to make the bout large add one 8 lane road first, then add three 2 lane roads at the 90 degree points. Now you have matched in an out lanes more closely and cleaned up crosswalks and stoplights, and the Zoom begins. Be creative with road types and lanes. Big roads are best.

I'm closing in to 800k very quickly and credit the perfect traffic in a dizzying amount of roundabouts (pun intended) for assisting constant growth.

[Wenatchee Willie]

Originally posted by Major Kudos™:

If you want to smash the big city quickly roundabouts if set up correctly are an absolute necessity. You need a LOT of them to see the effect.

Just like in real life (oddly) these Cims seem to gradually learn them and use them properly. You just must eliminate all crosswalks and lights in sight of each one. And more importantly match the incoming roads and styles. 8 and 6 lane roads and 4 lane highways work best. Along with the above delete parking anywhere near one.

I'm closing in to 800k very quickly and credit the perfect traffic in a dizzying amount of roundabouts (pun intended) for assisting constant growth.

Great tips here.

Is it best to add one when needed by starting off with the little one? Or if you see the need to just lay down the biggest one?

[icedude94]

If you are getting a lot of volume, it's better to just draw out the roundabout yourself using highway sections and make it big like a highway interchange.

[Major Kudos™]

Originally posted by Wenatchee Willie:

Originally posted by Major Kudos™:

If you want to smash the big city quickly roundabouts if set up correctly are an absolute necessity. You need a LOT of them to see the effect.

Just like in real life (oddly) these Cims seem to gradually learn them and use them properly. You just must eliminate all crosswalks and lights in sight of each one. And more importantly match the incoming roads and styles. 8 and 6 lane roads and 4 lane highways work best. Along with the above delete parking anywhere near one.

I'm closing in to 800k very quickly and credit the perfect traffic in a dizzying amount of roundabouts (pun intended) for assisting constant growth.

Great tips here.

Is it best to add one when needed by starting off with the little one? Or if you see the need to just lay down the biggest one?

I added a bit more after you replied so answer may be above.

However, I go big from the get go. It's very hard to make them bigger later.

When I get home I'll post a single screenshot in 800k city with around 12 of them spinning everywhere.

[Major Kudos™]

Originally posted by icedude94:

If you are getting a lot of volume, it's better to just draw out the roundabout yourself using highway sections and make it big like a highway interchange.

No advantage to draw manually. Just match road types and size and remove crosswalks lights and parking. No need to fuss. Your clogs will be elsewhere not in the roundabouts.

I use 4 lane highways along with roundabouts joined together and they take on the highway properties. So don't waste time fiddly drawing one.

[Major Kudos™]

Originally posted by rovaira2:

Are roundabouts worth it? It seems like they just end up slowing things down especially when there is a lot of traffic.

37 Rounabouts in #2 screenshot - Perfect traffic Yes, they can work very, very well.
https://steamcommunity.com/sharedfiles/filedetails/?id=3220112655
https://steamcommunity.com/sharedfiles/filedetails/?id=3219690016
https://steamcommunity.com/sharedfiles/filedetails/?id=3219690659
https://steamcommunity.com/sharedfiles/filedetails/?id=3219698842
Hopefully, this helps answer your question?

[vfr]

For what it worth Biffa on Youtube run controlled experiment to see what kind of intersection is best in handling large traffic. He did use "Traffic Lights Enhancement" mod. He showed that properly configured lights controlled intersection is better than roundabout. It's actually interesting video in any case.

https://www.youtube.com/watch?v=p5D6fTCY4Qk&list=PLR5G_Kc9r-JBJrkPYknegEh8Xssqk6eQC&index=11

[Major Kudos™]

Originally posted by vitali.fridman:

For what it worth Biffa on Youtube run controlled experiment to see what kind of intersection is best in handling large traffic. He did use "Traffic Lights Enhancement" mod. He showed that properly configured lights controlled intersection is better than roundabout. It's actually interesting video in any case.

https://www.youtube.com/watch?v=p5D6fTCY4Qk&list=PLR5G_Kc9r-JBJrkPYknegEh8Xssqk6eQC&index=11

You can't be serious? That was a set up to fail fiasco. Roundabouts are an excellent way to compact freeway on/off ramps and work very very well when deployed sensibly.

[Major Kudos™]

More Roundybout fun!
https://steamcommunity.com/sharedfiles/filedetails/?id=3227197671