Critical Connections! - Understanding the Power of Service Interchanges in Cities Skylines 2

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➤Welcome to the “Cities Player Plans” video series. Cities Skylines 2 is out and now we must build! But how will we connect our city to the outside world efficiently? Service interchanges are the crucial last step to let traffic enter and exit your city from the freeway. This video is all about understanding the included service interchanges in Cities Skylines 2!
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0:00 Have You Ever Had a Dream?
1:10 Service Interchange vs System Interchange
2:24 Trumpet Roundabout
4:14 Partial Cloverleaf (ParClo)
5:50 Dumbbell
7:02 Teardrop Roundabout
9:32 Diamond
10:37 Single Point (SPUI)
#citiesskylines2 #interchange #city
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Опубликовано:

14 авг 2024

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Комментарии : 141

@IvoryShard 9 месяцев назад

I love the fact that I ended up learning so much about city planning and interchanges by playing skylines and trying to get better at it. I don't even know how to drive... and my country does not even use roundabouts.

@dr.pepperaddict8071 9 месяцев назад

I legit put "2k hours of cities skylines" on my application to be a civil engineer for my city. I got hired basically instantly when I explained what the game is and what was done within the game.

@THE_PERSON4204 9 месяцев назад

@@dr.pepperaddict8071 you joking?

@aussiedogfighter285 9 месяцев назад

@@dr.pepperaddict8071 wut

@SymbolRa96 9 месяцев назад

@@dr.pepperaddict8071 Please tell me what city this is, I'm gonna move there. PLEASE

@dr.pepperaddict8071 9 месяцев назад

@@SymbolRa96 why would I give up my position! Job security!!!

@Arkaine_ 9 месяцев назад

My favorite interchange design came from you; the so called Single Point Partial Cloverleaf design. I have tried it in CS2 and it works fine so far. Although I haven't reached the point yet where it would be challenged by heavier traffic. I do miss TM;PE from the first game. Back in the first game I've built a 150k population city that ran off a single SPPCI and it worked just fine.

@matthewparker9276 8 месяцев назад

The good news is that the developer of TMPE has announced they are working on a traffic tool mod for CS2, and while it will take a while to reach full functionality, they expect to have a basic version working by the time official mod support arrives.

@TheTaxxor 8 месяцев назад

@@matthewparker9276 We already have a mod now that has some advanced settings for traffic lights and can also change lane arrows, so I think there's a good chance that we will see more than just basics when the official mod support arrives(which could be in February)

@EmmaWithoutOrgans 7 месяцев назад

@@TheTaxxorwhat mod?

@raving_1074 8 месяцев назад

I love that you put the wiki link you talked about in the description, its something small that many people forget to do!

@PhotonBread 9 месяцев назад

Being from Carmel, IN, I’m a bit of a roundabout aficionado.. we call the Teardrop Roundabout interchange a Dogbone. They’re at almost every major interchange in the city. Usually the Dogbone is under the main road though

@northernwolfentertainment1654 9 месяцев назад

Great video! I'd love to see a dedicated series focused on how to improve the in game prebuilt intersections. For example, in CS2 the standard partial cloverleaf always breaks down and I find myself redrawing part of the roads due to traffic merging where they shouldn't and whatnot.

@davidroddini1512 9 месяцев назад

I’d like to see a series where they replace the starting interchange with something more experimental (such as a Single Point Partial Cloverleaf) and see how big the city can get before the experimental interchange can’t handle the traffic. 🤔

@timehunter9467 9 месяцев назад

I agree with flaring the exits, looks nicer but I think the traffic slows down less too.

@davidroddini1512 9 месяцев назад

The SPUI also has a variant which is as narrow as a regular 4-way intersection. You just elevate the highway over the local road and have a regular intersection underneath with the “ramp road”running between the highway directions far enough back that it doesn’t get blocked up onto the freeway. Then connect the “ramp road” to the freeway from the left side. I hope my description is clear enough. Edit: I forgot to add that while this type of SPUI isn’t very common IRL, it does exist and is called an inverted SPUI.

@Doddibot 9 месяцев назад

Uncommon because ramps connecting to the inside lane of the highway are generally not recommended any more.

@D3r3k2323 9 дней назад

@@Doddibot It's often used for express lanes

@Doddibot 9 дней назад

@@D3r3k2323 That at least makes sense because it's fast traffic, not slow traffic just entering or about to exit the freeway.

@scheballs7 9 месяцев назад

Great Video Thanks! One thing you could do to the tear drop at the 9:11 mark, upgrade that 4 lane divided road into a 4 lane two way highway.

@beastateverythin 8 месяцев назад

I always throw down a diamond interchange for literally every service interchange in all my cities. Only when it starts to get overrun is when I change it. It often surprises me how long they last. In my city of around 55k pop, I finally need to replace my first diamond with something else

@YUMBL 8 месяцев назад

I agree with this fully! Least amount of force necessary.

@tinear4 9 месяцев назад

Gotta love that SPUI. It does feel to me, though, like a lot of the in-game intersections are forced onto flat terrain, while IRL the highway naturally ends up above or below the local road due to topography.

@YUMBL 9 месяцев назад

I agree. Using the terrain to your advantage is also realistic. A little hill may make a good spot for an overpass, or a small valley as a trench for the freeway. Then build it to flow nicely yourself. Much more fun than placing it.

@Jive33 7 месяцев назад

The half-circle design of your town is awesome.

@enhydralutra 9 месяцев назад

I have simply built a road across a highway and called it good in CS2, and it went very well! But that's because connected a couple city services that weren't going to create much traffic at that intersection. Something I learned from actual road infrastructure driving around.

@martdonkey846 Месяц назад

Those partial cloverleaves are everywhere here in the Netherlands, just now realised how efficient they are

@abfruits 8 месяцев назад

OH! I'm so excited to see that trumpet roundabout! My town has one! Ours actually has the local road going in the other direction (but it's to a very unpopulated area), and to handle the left turn issue once you get past the roundabout and the underpass, our exit/entry lanes are a diamond/with/light, as opposed to being curved into the local road. To be completely honest, I wouldn't normally think of building this interchange, even though I drive on one multiple times/week.

@MatteV2 7 месяцев назад

The Trumpet and B4 ParClo are super common in Sweden around where I live, and they're sssssso smooth to drive on. Im glad Cities Skylines 2 added better road management for better traffic flow.

@WonkieNJ 8 месяцев назад

My only comment is that Riverdale looks like Frostpunk, and that's awesome.

@ward6446 9 месяцев назад

Big fan of your videos, thanks for keeping them coming. If I may make a request, can you do a video on placement of freeway interchanges? I always find myself building a city to ~20k population and then having major gridlock. At that point the city is so established that it feels wrong to nuke entire neighborhoods for the sake of bringing in additional connectivity (I know this happens IRL, hello I-5/I-90 interchange). Having some strategy for thinking about potential interchange locations at the game start would be helpful. It's likely that you did this already for C:S so any links to videos or stream segments that cover that would be appreciated!

@Varatho 8 месяцев назад

The funky merging lanes on the Single Point have a distinct purpose: They manipulate the Traffic AI into merging at specific points on the road, instead of at the last possible moment, which causes the highway traffic to flow better. You can see how not abusing the merging lanes causes issues at 11:49 on the video where the white van with the trailer dead stops in traffic while occupying two lanes in order to switch out of the turning lane it has found itself in. You basically want to add a turning lane next too a strait through lane whenever possible to keep traffic flowing better.

@YUMBL 8 месяцев назад

Sure, but I think it could have been designed much more cleanly. Using fewer than three lanes to begin with. The built in SPUI is very messy in its current state.

@PupOrionSirius26 9 месяцев назад

The built in game interchanges are a great starting point.

@fko3143 9 месяцев назад

There was this whirlpool highway interchange addon for CS1 and it could handle high amounts of traffic without stalling and it was ver compact vs the common cloverleaf intersections.

@ThaJay 8 месяцев назад

Yeah, I thought about it but this confirms it. We can not do a proper SPUI in CS2 right now without traffic management. It needs to be a 3 phase light with separate left turns on the local road. Only alternative is to split off the straight direction but that requires a third level or taking off the straight directions from the local road some other way. Oh how I can't wait for the mod update and the traffic manager, advanced road tools and move-it mods. I love CS2 and what they made it but I really miss those mods for my road building. Hardcore landscaping to force the road I want is really finnicky and a lot of work. Oh and landscape not physically snapping to roads any more has its upsides, but getting the landscape to have some fat on the bottom side of the road along a hill is so much work now! So I hope a smooth to road / building landscaping option also emerges at some point.

@grahamturner2640 2 месяца назад

Some SPUIs are a 4-phase light, even without frontage roads (e.g., SR-101 at Bell Rd in Glendale and SR-202 at Scottsdale Rd in Tempe, both in Arizona).

@ThaJay Месяц назад

@@grahamturner2640 I never said every real world intersection is built properly

@Bob78 9 месяцев назад

The intersections in CS2 look so much better than the original. but i will miss the goofy spaghetti intersections

@nilscibula5320 9 месяцев назад

I often use a very smal trumpet interchange, wich is normaly a system interchange, as a service Interchange to connect a 4 or 6 lane local road. I think it's fine al long as you only need a conenction to ONE side of the highway.

@zackthecaz4390 8 месяцев назад

I used the spui in my minecraft downtown city and it's great! Love your video and the info :)

@ShadowWolfTJC 9 месяцев назад

I noticed that diverging diamond interchanges were not covered in this video. Personally, I think they'd make for a nice alternative towards SPUIs in some situations, particularly where there's not enough room or budget to be able to afford upgrading an existing diverging diamond interchange into a SPUI, such as if the highway was running over the interchange instead of under it for example.

@PColumbus73 8 месяцев назад

I think DDI's are best used where turning traffic on-to and off-of the minor street outweighs traffic going straight through. Also, I've seen a diamond variant in Georgia where the left turn lanes onto the freeway kind of cross places with each other like: VV /\ V /\/\, looks a little like a Diamond / DDI hybrid.

@YUMBL 8 месяцев назад

The DDI actually excels in one spot that the spui doesn’t. When the majority or arterial traffic is not crossing to the other side of the freeway but is turning left or right onto it. My recent video explains it better :)

@grahamturner2640 2 месяца назад

@@YUMBL and at one point, Arizona's Department of Transportation wanted to build a 3-level diverging diamond interchange in Tucson as a part of a SR-210/I-10 improvement project. Through traffic along the arterial (Kolb Rd) would take the top level, while the middle level would be for traffic getting on and off the freeway. The premise of the 3-level DDI was to keep the advantages of a DDI while minimizing its disadvantages.

@Sir_Rots 8 месяцев назад

I build al my interchanges myself due to your videos, so ty for that. As you say, all of the ingame templates can be improved, and almost always be made in smaller footprint. Tx again!

@FrezzyHDMapping 9 месяцев назад

Is there any tutorial how to build the SPUI you showed on your stream city? it would fit perfectly into my city but i have trouble building it

@YUMBL 9 месяцев назад

There certainly will be :)

@HazewinDog 9 месяцев назад

I find this stupidly interesting. If only I had found out earlier, I might pursue a job related to this lol edit: also, I am in love with the look of Riverdale and that main intersection. How do you play Cities Skylines in a way that makes it all about traffic management and the roads and districts making sense?

@YUMBL 9 месяцев назад

Thank you! I just look at a lot of maps and build things that feel inspiring. The first two episodes of this series may help you :)

@Bluetangg 8 месяцев назад

Seems that many interchanges inside cities are diamond interchanges using parallel existing city streets by the freeway to build ramps from. They drop off the freeway or off the embankment next to the freeway. I guess I saw those but never noticed how they were built.

@lordraven2264 8 месяцев назад

Lol, cool, I build my SPUI exactly the same. It looks so much better.

@krzychaczu 8 месяцев назад

They should have contracted you for designing these interchanges for C:S 2 🙂👍

@SaltyRad 6 месяцев назад

I found that turning the T sections on the clover leaf to roundabouts let’s it handle heavier traffic

@alexc5156 6 месяцев назад

So helpful. Thanks!

@Dlnqntt 8 месяцев назад

Yumbl, to remove the yield that you mentioned you just need to right click with the traffic light, or stop sign, in that area and it will remove the traffic control.

@YUMBL 8 месяцев назад

I believe when you remove a light the yields appear automatically. I could be mistaken though.

@Dlnqntt 8 месяцев назад

@@YUMBL I have not tried it in a highway configuration but have had success with removing the yield and such with merge lanes in the city proper. It may also something to do with what types of roads are being linked.

@enersoja-jaso6847 Месяц назад

Thx 4 this one!

@pashark_gaming 8 месяцев назад

Absolutely informative!

@kallenreddy375 9 месяцев назад

Let’s get this man to 100k subs

@DeanShirley818 8 месяцев назад

Need to do a diverging diamond. Seeing a lot more of them popping up in my area. Just drove through a single-ended one in Maryland.

@YUMBL 8 месяцев назад

Just figured out a good DDI build method :)

@119etPlus 8 месяцев назад

As instructive as ever. Thank you :)

@BruceRichardsonMusic 9 месяцев назад

Ha, YUMBL. This is the first time I've seen the "Cities Player Plans" series title. :p

@davidroddini1512 9 месяцев назад

Can’t wait to see more of this series 😂

@snowhawk04 9 месяцев назад

I much prefer the half-ddi than the trumpet roundabout, especially with the game AI tendency to use the ramps for through highway traffic.

@Hannodb1961 9 месяцев назад

Pity you disnt discuss the Divergent Diamond interchange. Thats one of my favorites.

@E2_2020 9 месяцев назад

There are some trumpets that end into avenues though. I think ive seen some in japan. Great stuff as usuall.

@YUMBL 9 месяцев назад

I agree. Theres crossover between some types of interchange. Trumpets being one. Cloverleafs too at times.

@TheCreat 8 месяцев назад

You point out at 8:30 (ish) that the lane in the teardrop shape isn't connected. But if you watch the video a bit earlier you can see cars do take that path just fine (like 8:02 and 8:06). So it seems to be a bug in the visualization of the lanes, or in the pathfinding ignoring lanes.

@YUMBL 8 месяцев назад

It’s more functional than I thought, but its still not right. Both of those vehicles used the disconnected lane from the left lane of the roundabout. They need to be able to use it from the right lane. It’s still not functioning correctly.

@TheCreat 8 месяцев назад

@@YUMBL Yea I think they effectively went from the left lane into the left lane, but used that same node to make a lane switch to the right lane. But yes, clearly not "correct". I also don't know why there are even presets with weird lane issues like this, especially when we only have so few.

@YUMBL 8 месяцев назад

Its a somewhat small oversight, but I’m also somewhat picky 😅

@sylvie_v2939 8 месяцев назад

Respect your work, used plenty of it on the workshop for the original cities skylines But this is infuriating with the amount of illegal u-turns my Cims are just doing whenever, especially if I try to add a slip lane. Definitely taking the fun out of this. And not having access to intersection asset editor and ped walkways being kinda awful and then jwalking anyway The SPUI gets stuck on the light and pedestrians in game.. You could improve the highway for people going straight on but the issue is the light for sure. Almost would just go with a slip laned roundabout and submerge/sunked the highway if it didn't immediately cause secondary issues with pedestrians

@YUMBL 8 месяцев назад

Thank you. I’ll certainly be doing more work with specific junctions once we have better traffic management options. Until then I think many players will still benefit with having the available implements explained :)

@sylvie_v2939 8 месяцев назад

@@YUMBL oh, nothing against you, just me wishing I could manually cascadia event my downtown core right now to clean this traffic up with all the illegal u-turns and pedestrian crossings.

@JaumeCabistany 8 месяцев назад

good stuff!!

@antoniobodur267 8 месяцев назад

What about SPUPARCLO, or Single Point Partial Cloverleaf? I think it's the best, since it only has 2 light phases!

@SickPrid3 9 месяцев назад

What is even more powerful is leaving space to upgrade your initial roads

@josephp9141 Месяц назад

05:05 god definitely did not rest on the 7th day, instead god made this….. and humanity is forever grateful for it

@Pystro 8 месяцев назад

7:06 Not quite. This one is a "dogbone" interchange, not a dumbbell. A dumbbell interchange has full roundabouts at either end (so that traffic approaching the interchange from the local road can turn around without crossing the highway). See 9:06. A dogbone has the two roundabouts at the ends of the highway crossing not fully closed (because barely anyone is using the part of the roundabout that's facing the highway). See 7:06. If you draw a dumbbell, it's a line with circles at either end. If you draw a prototypical bone, it's a thin middle section that flares out into a bulge at either end.

@YUMBL 8 месяцев назад

This is true :)

@42ultra 8 месяцев назад

Can you elaborate on the downsides of using a system interchange where a service interchange would be more appropriate? I usually build a high capacity system interchange design to flow directly into my downtown main street. It seems like it might be flooding the first intersection that traffic reaches, especially the first left turn. I'm not sure whether a "weaker" interchange would perform better here.

@YUMBL 8 месяцев назад

Sure, a system interchange is overkill where a service interchange should be used. Just as using a service interchange where a regular intersection or roundabout is appropriate would be overkill. System interchanges are larger often with more overpasses which makes them quite expensive in real life. Overusing them is an unrealistic waste of space that will lead to improbable city compositions when overbuilt, as well as an over reliance on freeways where the city (buildings and people) should be.

@adavirus69 9 месяцев назад

0:30 I did it in my farming industry, worked perfectly fine

@YUMBL 9 месяцев назад

Absolutely! But I’m talking about a connection for a city :)

@adavirus69 9 месяцев назад

One end of the road connected to the farming industry while the other connected to the city, still works perfectly fine

@YUMBL 9 месяцев назад

Well I guess you’ll just never need to use interchanges!

@ash36230 9 месяцев назад

I propose a ridical solution. Eschew highways and freeways. Everything is a local road 😁 EDIT: 2:25 Kudos to the driver of that grey car coming off the highway, to enter the roundabout and exit straight back onto the highway

@ykwoozie606 9 месяцев назад

Is a complete free-flowing service interchange possible at all?

@davidroddini1512 9 месяцев назад

The service interchanges with roundabouts are free flowing service interchanges in low traffic situations. It’s only once the traffic volume leading into and on the roundabouts increases too much that it stops being free flowing.

@YUMBL 9 месяцев назад

I misunderstood for a moment there. Service interchanges are much smaller and generally lower flow than system interchanges. As such they allow for conflict. One must exit to a small enough road that conflict is allowed eventually, right?

@davidroddini1512 9 месяцев назад

There is an interchange I came up with. It works in CS but is large for the real world. It is a hybrid of the diamond and the cloverleaf. The highway has parallel one-way two lane roads adjacent to the highway. These roads are then connected to the highway with ramps at each end. Then connect the local road to the parallel one way roads using cloverleaf ramps that are bidirectional. For smoother flow use two one way ramps (one in each direction) flared out to connect each end of the loop to the road it connects to. This would make a service interchange variant of the cloverleaf, at the expense of being larger than a standard cloverleaf interchange. That is why it is not used IRL.

@jandin8862 9 месяцев назад

As they said, being free-flowing isn't necessarily the point of service interchanges. But if you start with the ParClo, split the arterial in 2 1-ways, make it longer, adjust heights and use a bridge/tunnel to do the left turns, that's free flowing. I was looking for a design that would work under heavy traffic in vanilla CS:1 (it's hard to make anything at-grade work well with vanilla lights and lane controls), and got to this.

@The.Drunk-Koala 8 месяцев назад

CS2 should be called Traffic manager 2023

@leanagray3348 8 месяцев назад

On the I 84 in Oregon they have just spammed diamond interchanges on every connection

@YUMBL 8 месяцев назад

They’re always a perfect place to start imo! Then expand as necessary.

@sjguy1962 8 месяцев назад

Great video as always, what is the particle clover where only the leaves after the overpass are used depending on the direction they are going is that a 2 or 4 B type?

@YUMBL 8 месяцев назад

Leaves after the overpass with ramps in four quadrants is a B4 parclo :)

@HermaeusM 4 дня назад

Do you know of any good 3-way system interchanges in the mods? I have times where a 4-way cloverleaf just isn’t going to work

@YUMBL 4 дня назад

A new leg connecting to a freeway may like a “t” or “y” interchange. But my favorite there is a trumpet.

@JohnyS113 6 месяцев назад

Any reason why on Trumpet Roundabout cars coming from the left into the roundabout are continuing on the freeway (through the roundabout first exit) ?

@YUMBL 6 месяцев назад

Its an available and legitimate path. Vehicles don’t really see “interchanges”. Just pathing options. Is the freeway above blocked or slower for some reason? That would do it.

@WawakGuitar 8 месяцев назад

at 8:03 a car goes through the section that you said was non functional.

@Foggeer-von-Dreitveld 8 месяцев назад

What would happen if you were to use system interchanges in the place of the service interchanges?

@YUMBL 8 месяцев назад

Unnecessary system interchanges are just a poor use of space and money. Then you also have a new freeway coming off the end which requires another interchange to access.

@Bunkiiiiii 9 месяцев назад

I don't get why you call the peanut one dumbbell. It's basically a roundabout above the freeway, only with two parts pushed in When traffic engineer started to be a thing dumbbell did look kinda like this O-O, two roundabouts connected

@YUMBL 8 месяцев назад

Thats true. I actually should have called it a dogbone interchange.

@THE_PERSON4204 9 месяцев назад

I think A means after and B means before 5:13, you did it the other way around.

@YUMBL 9 месяцев назад

It does not.

@davidroddini1512 9 месяцев назад

@tamimabushanab44469 That’s a common misconception. However, in actuality it works more alphabetically. A is the first letter so that means the loop comes first. B is the second letter so that means the crossing road is first and the loop is second.

@magno_pseudonym 7 месяцев назад

its funny how he said city players plans

@cf453 9 месяцев назад

Love your content, man, but I can't wait for this lo-fi trend to be over.

@sintsmeding2371 8 месяцев назад

The Trumpet Roundabout is very similar to a real life interchange just south of Leeuwarden, NL at 53.1596268350841, 5.797869895806288. Directly west of it is a nice stack interchange between two highways.

@panagiotisleontopoulos3597 8 дней назад

9:32 what on earth the bus driver is doing ?

@MaD0MaT 9 месяцев назад

I love your junctions. Shame that AI can't properly utilize them. First game AI with tmpe worked way better.

@brosaus 9 месяцев назад

Agreed I decided to stop playing until I get more tools to optimize traffic. After getting a fairly big city of 150k I am unable to manage traffic anymore and every rush there's gridlock.

@keithclunk3125 9 месяцев назад

TMPE, Move It!, Node Controller, plus other essentials required. Until then... Meh! .. I'll stick with CS1. Perhaps a couple of years away yet, but currently CS2 is just painful and frustrating to even watch. I just paused this video at the start to write this is as I've seen more than enough elsewhere.

@user-qp3qj2jv6f 9 месяцев назад

Cities Player Plans, lol

@killa_kirby1297 9 месяцев назад

when will mods be back. cant play without them anymore. mainly anarchy and IMT

@brosaus 9 месяцев назад

They announced it will take months before a mod editor will be released. So not in the foreseeable future.

@killa_kirby1297 8 месяцев назад

😭

@chrissmith3222 8 месяцев назад

the ones they give you are usless the cars just have a brain fade when trying to get off

@b9904 8 месяцев назад

Interchange tutorial please

@YUMBL 8 месяцев назад

Coming soon :)

@trevsguitarstash4967 8 месяцев назад

Expanded road services. Ohh how i long for mods

@pat.n5507 9 месяцев назад

It always bothered me that interchanges are called 'intersections' in game. Could someone tell the devs the difference.

@rileywhetstone1755 8 месяцев назад

😀

@matthewlittler8387 8 месяцев назад

Cities Players Plans

@lebawsski 7 месяцев назад

See I want my cimcs to walk or take pub Transportation. Not drive.

@RobertoOrtis 9 месяцев назад

Even the intersections provided by the developers are no good. Did they do anything right? I can’t believe they are so incompetent! I guess all the money they got from CS1 went to their pockets instead of hiring more competent developers for CS2