Solving Traffic with the "Double Trumpet" Interchange in Cities Skylines

[@ArchTeryx00]

Yeah, the double trumpet is basically a PARCLO on steroids, meant for system interchange traffic. And you created a beautiful one here. Definitely will be making an appearance in Storm City.

[@CallMeLEv]

Parclo on meth

[@Bram06]

You're the Bob Ross of Cities Skylines

[@Pystro]

Great Interchange, and a great tutorial. However, I would call this a "Twin Trumpet", because it has the two trumpets twinned up and interleaved. "Double trumpet" implies that there's little interaction between the two parts - Which is the case for the first interchange you showed; and for an interchange that's very similar looking (but inferior) to the true twin trumpet, made by putting two trumpets on both sides of one highway. Also, adding another alliteration always amplifies awesomeness.

[@matthewyang7893]

The entire last sentence speaks for itself

[@lukasmax6984]

Connecting two highways by trumpets like you show in the beginning is bad. It creates the same problem that a cloverleaf does - cars weaving and changing lanes in a very short section of road. I really like the solution you came up with. I didn't know that was a possibility! No weaving in this one.

[@keejj]

There are a few examples in the world, but one is replaced with another interchange. It still surprises me why it is not used more in real life since it seems cheaper to build then a cloverleaf (only 2 leaves, and depending how it is designed, it may not cost more on bridges too) while it doesn't have weaving. I guess it is because of the slightly more exit/split points for the traffic going straight on one of the highways.

[@randallcromer66]

I always look forward to whenever you put out new content. You have become one of my most favorites Cities Skylines content creator and you have earned a viewer and promoter of your channel for the rest of my life. There is only a select few who help make both this game and community so great and I very much appreciate all you do to contribute to both. So please keep up the awesome work and I promise to keep coming back for more and sharing your video's with as many people as I possibly can because you definitely deserve all the exposure that you have gotten. Take care and be blessed beyond measure. 👊🤓👍

[@josephiroth89]

This video helped me build a rough version of one of these on a Noyou Bay map that I'm playing right now. Thank you for the tutorial, enjoying some of your other videos as well.

[@Catpoint789]

Dude, this is beautiful. Definitely one of the prettiest interchanges you've shown. Keep up the great work! And I love that you thank us for sticking around in every video, you're awesome.

[@Blue_Phoenix24]

Love all your intersection/interchange tutorials. You sir know how to make beautiful, yet very effective interchanges. One of the best!

[@reaper352c5]

i have heard about this interchange but haven't seen anyone build it yet. i came across your video and am really glad i did. i just started playing cities skylines last month.

[@YUMBL]

Have fun!

[@Marconius6]

That looks great, love the way you filled it with trees and dirt, very aesthetic. One small thing I noticed: I think your lane mathematics would work out better if the straight roads on the lower grade were one lane wide. Although maybe that would look a bit weird on an actual highway?

[@clnetrooper]

The double trumpet is one of my favorites for a long time. Beautiful and destroys traffic. Takes a lot of place though.

[@ChristopherBurkholder]

As a former high school band geek who played the french horn, I was particularly gratified when you acknowledged my instrument. Thanks.

[@madhavsomaiya3572]

Here in India, many of our new highways have a similar trumpet interchange to the first one you showed, but they DO intersect perpendicularly. The two trumpets are quite far from each other and are connected by a curved (usually toll) road. This, effectively, makes a four-way intersection. Have seen it in other parts of the world, too.

[@trevorp-j]

You've outdone yourself. Beautiful and not too complex. I'm going to add it into my current build. Many thanks!

[@kjorndogg3244]

I was just thinking about this, perfect timing! Amazing video as always, I have to try making one of these now.

[@stuchly1]

Happy to see another dedicated interchange construction video! This looks absolutely wonderful! So pleasing to the eye and the functionality is a nice bonus! 😆

[@iris4547]

indeed. i never build any of these, as i always tend to stick to building things i find in my local area, but have to appreciate the thought, creativity and expertise that goes into it all. i usually at least take something away from these videos.

[@davidphillips1133]

I like this intersection a lot, With, larger diameter curves and minimum 2 lanes crossing for trumpet sections and 4 merging and exiting lanes you could replace the best of your other intersections you've made.

[@Pothos_planter]

I think this is my favorite interchange you’ve made. It looks so nice!

[@str8ien]

Love the videos, YUMBL! Your audio mix is incredible as well, love hearing your voice

[@tonje_gram]

Stunning! Absolutely stunning! Please tell me you'll be sharing this on the WorkShop.

[@MB-ww5ej]

Really like this tutorial for the double trumpet Yumble - very nice. I regularly create the standard trumpet for highway exits in vanilla on console and will look forward to giving this a go - certain parts may be a slight challenge without mods but I look forward to trying.

[@ssouthern6710]

Thanks for showing that trick with node controller and move it to make the split look right. 👍 Great video

[@playtimewithdragonfire]

Yumble! Your timing is perfect. I was just trying to figure out how to integrate a service interchange and a system interchange together and this is oriented perfectly. With little adjustments this is going to do the trick wonderfully for my next video.

[@solidsnaker1992]

Haven't watched the video yet, but from the thumbnail this is going to be the single most beautiful thing to possibly exist! I'm going to be starting a city soon and this WILL be in there! (Maybe not exact might change up the aesthetics a bit if I can)

[@jagnes632]

Love this video! I too have not been able to see the slope percentage using the network multi-tool...sometimes if you go into options and change the percentage to degrees and then back to percentage again it shows up, but sometimes not!

[@redcrafterlppa303]

I love this interchange. It's pretty, it's free flowing. The only thing I would change is the lane math. I would make 2 lanes go through for the top road, widen the bottom highway to 4 lanes before the 2 roads go of and make the connection road for those 2 lane.

[@mahgunz]

Another great video! Thank you for all the inspiration!

[@7th_CAV_Trooper]

Great video! I pretty much only use trumpets anymore, except in Yumbl Wood where I'm enjoying the built in parclo :)

[@kholofelomocheko]

YUMBL makes beautiful interchanges in CS. Periodt!

[@elementalgolem5498]

The two highway connection you showed is actually used atleast once here in Norway. To my knowledge there might be more of them, and in-between the two there's gas stations, a few commercial buildings and a extra road connection to the city. But no toll booth, as we don't have toll booths in Norway

[@vadmal5210]

You must have ton's of patience. This is just fantastic!

[@krisculin9679]

Very nicely done. I'm truly impressed. I hope you were good enough to upload to the workshop so us mere mortals can use this in our cities. I can think of a few maps I use that this would fit very nicely with.

[@DanielSmith-DannieD]

It's always fascinating watching you work, Yumble. A beautiful outcome and great idea, indeed. Will you be putting this beauty on the workshop at some point? Fingers crossed!

[@jassimmohd8835]

Amazing interchange!! but the only problem I have with it that it doesn’t have a U turn on any side. luv ur videos :)

[@anthonystahl8996]

I have been using a par clo design with roundabouts on either side of the highway, been working well, trumpets ,Imo, look the best

[@kleinerprinz99]

Very nice. Yeah I noticed IRL they tend to collect the merges after one creating bascially a new highway which then accepts new onroads so spacing out the mergers instead of all of them merging at once from all directions. :)

[@ShaunWilliams]

Love these tutorials on interchanges. I would like to se more about very complex interchanges thou, like as in instead of just 3 and 4 ways, but more like 5 and 6 ways, and not just parralel but also angles etc as in real life your 2 highways may not always perfectly align. Also more on main road joins (exits and entrances) and more on endings too, like a highway that ends at the downtown, ways to effectivly get traffic off and on etc.

[@gui_bauer]

Finally, I was missing that intersection videos

[@brynster]

Thanks for this managed. Managed to replicate on PS4 with a few rough edges. Great work.

[@nathanwaldron4259]

There is a real example of this in myrtle beach SC. Al’s though that is probably a bit better because you can go much faster going straight through because the curves are much less harsh

[@PColumbus73]

I live in the Myrtle Beach area and have driven through that interchange several times, it's definitely unique! The one major downside is on both ends of the over-crossing highway, there are blind spots where the on-ramps merge into the travel lanes, and it doesn't feel that there is enough length on the acceleration lane to safely merge (from the right, the left entrance just becomes the left lane).

[@UKChrisC]

Hi Yumble enjoying all your interchange videos. It would be interesting to understand your rationale for having the loop slip road for exiting on the trumpet as opposed to on the entry. In the UK it’s best practice to have them the opposite way around to how you have them, as bleeding speed on right radius corners often leads to loss of control accidents and lorries tipping over.

[@YUMBL]

A 40 meter radius turn is really not so small. This is also being used to connect two highways. There isnt a dominant road here as its a system interchange.

[@UKChrisC]

@@YUMBL I was just curious as the UK doesn't have many trumpets (due to being late to the motorway game and not having many toll roads) but the ones we have are always the opposite way around- which the reason is safety. Its always interesting to see how others make them

[@baystated]

Some parts of this reminds me of Boston's Logan Airport highway loop. Split followed by split followed by split in such quick succession that neither my sign-reading abilities nor nav-system-speaking could keep up. A quick succession of merges is less of an issue at Logan when merges just add a lane. Minus for Logan is that is combines merges and splits to make weaving cross-throughs which your design has [PLUS] has eliminated. Bravo! Is there a variation where the un-aligned elevated highway approaches the interchange directly across from one another? I'm thinking about how if this design got chosen to replace an existing cloverleaf. If you label the roadways in your designs (which are awesome and beautiful) as North-South and East-West, it might make it easier to talk about them.

[@leon6542]

thats the most beautiful interchange ive ever seen

[@Corum001]

The provocative all be it controversial title belies organized symmetry and practical application of this elegant solution. Thanks for helping us make the very difficult possible, there by elevating our fun level. Cheers :)

[@YUMBL]

Extreme(ly symmetrical) Loops!

[@StaK_1980]

It looks great! All that detailing!

[@5BBassist4Christ]

Calling a Double Trumpet a French Horn. As a B.A. in music, I approve of this reference.

[@galitianu]

12:12 there is not only an aesthetic reason, but also one related to safety. Lanes merging in such a tight curve can be dangerous, as it is much harder to see traffic from the main highway as you drive off the ramp

[@UKChrisC]

It’s seen as the opposite way around in the UK. best practice is to design it in such a way that the loop sliproad is for traffic entering the motorway, not leaving it, as traffic entering is likely to be slower, whereas it’s more dangerous to bleed off speed on a tight radius turn from a major road, which can cause a significant amount more accidents than a slightly slower entry merge

[@Rolanndd]

It looks amazing, well done!

[@Gabriel04128]

Could you explain the move it mod on 16:20 please! Did you press control button and with mouse moved it a little bit?

[@YUMBL]

Exactly!

[@BlackHat302Gaming]

I always enjoy what you come up with, you are awesome.

[@Daniel1991FG]

Did you upload it to the Workshop? If so, can you please post the link? :)

[@YUMBL]

I’ll try to have it up in the next few days. I made it but placing it gives errors :(

[@svendemeyer6278]

Also looking forward seeing this one in the worshop! Lovely! 👌

[@christiaang]

@@YUMBL lets hope the errors will be resolved.

[@rio8688]

Can you make a video of just intersections working? Its satisfying watching those cars go around!

[@Leo_Y09]

is there any way you can upload this to the workshop?

[@rudigermullins8343]

With your traffic interchange and FewCandy's detailing skills, you two need to have a collaboration :)

[@MrBlkleaf]

Amazing . Are you excited for city skylines 2. They should hire to make interchanges

[@glenr7393]

One of the nicest looking interchanges, even without the plants!

[@JenxTech]

Don't mind me, I'm just here for the interchange Po*n.

[@wumamichl]

This makes me want to play CS again. But i'm too lazy rightnow to purge assets and mods. I got a question. Shouldn't the ground highway be 1 lane straight and 2 lanes leading away? The highway with the bridge turning left and the other direction turning right merge into 1 lane.

[@charleslouiseado3455]

Damn your interchanges are insane

[@trackman07]

I know it probably is not feasible but would it be possible for your to provide a warning when these will not work for vanilla? I love the ideas your present and end up having to take a lot of time to adjust for vanilla, which I do appreciate. Thanks for being you and making my understanding of the game better. Cheers

[@danielbolton3693]

god damn that's a gorgeous interchange

[@timdavison4675]

Looks great. Does it make a difference which way the trumpets face? Asking as someone who plays left-hand drive.

[@CanuckErrant]

I can't help but feel like an angled double trumpet (say, at a 45) would be pretty attractive; any plans to make something along those lines?

[@Urbanconservative]

Well I would like to point out the mortality rate of left hand exits. My cousin died in the death merge in Denver. BUT if the trumpets hit a main road rather than a highway, people are already adjusted to the left hand turn

[@garrygood8193]

nice interchange bro great job

[@rmpader]

How does these builds allow for switching lanes after the interchange? For example, the innermost lane exiting the trumpet. I understand that the way traffic in C:S workings is that they move to the outermost lane at the last node before they exit. How would those move if they need to exit on the next exit after the trumpet?

[@YUMBL]

I always recommend having a few segments/nodes in between interchanges to allow for lane changes. The interchanges shouldn’t be too close together.

[@rmpader]

@@YUMBL thanks! One more thing, am I correct to think that the number of nodes between interchanges is equal to the number of lanes?

[@YUMBL]

Thats a great idea as a minimum. Much like setting up a roundabout.

[@Stealthymist]

Excellent video! Thank you for the information. Please also put me out of my misery and release the new episode of Benton I keep refreshing constantly. Have mercy !

[@Mattster2k6]

Need this in the workshop. Too lazy to build myself.

[@jeremyhaugen273]

I second that! YUMBL you are falling a bit behind on putting these amazing interchanges on your interchange collection. PLEASE!

[@PhattyMcdugen]

You have essentially made the mixing bowl, Sir YUMBL, and with that you have broke my heart. It looks good though. ^_^

[@YUMBL]

Mixing bowl is quite a bit wilder. I think its 5 or 6 connections!

[@PhattyMcdugen]

Whenever I had to drive through that abomination would give me cold sweats, and the thought of driving through this is too. 😋

[@guntimes9908]

Me watching a PC player talk about difficulty while I'm on console taking minutes to do what they do in seconds. 😎 ENJOYING the content. New player here. Just hit 21k population. And am still researching. Thanks for the info.

[@JimEstep12071]

Another masterpiece! But, I've heard that music before?

[@YUMBL]

You have. In benton i think. Good song though ;)

[@JimEstep12071]

@@YUMBL also when you played the intro in the stream last night

[@YUMBL]

Oh yea 😂

[@SlimHandle]

Are there any junctions in America that look like the M40 to M25 interchange in West London? Where two unrolled slip roads connect and drive on the wrong side of each other for some time?

[@cmilkau]

Wouldn't you normally put the loops outside the overpassing way, rather than inside?

[@Housestationlive]

great work dude ! how much time it's take ? 1 day ? 1 week ? probably more if you don't have any knowledge about mods and you know that it is impossible without mods !

[@moramento22]

I think I'm inspired to build an interchange like that one, double trumpet, but with the roads coming in next to each other and the ramps going to the outside rather then to the inside. So it looks similarly to a cloverleaf.

[@YUMBL]

Nice! T4rget made one that way

[@moramento22]

@@YUMBL Yeah just watched his video after starting the interchange on my own, because I realised I didn't account for the straight through road xD

[@Arday60]

Stunning, really beautiful interchange. I recently saw a KZbin short of a diverging clover leaf (at least that's how the video called it), which I found to be interesting since it allows for completely free flow and removes left turns from the equation. Have you seen this and do you have an opinion?

[@A_Pirx]

Great tutorial, thanks :)

[@hi_im_sota]

When will this beauty come to the workshop?

[@matthewparker9276]

I love the double trumpet as a service interchange. Very elegant.

[@robinsparrow1618]

omg standup+maths

[@matthewparker9276]

@@robinsparrow1618 unfortunately not. When I get my degree I will move to the UK and supplant him, though.

[@robinsparrow1618]

@@matthewparker9276 thank you so much, it's what he deserves

[@SicQueldorei]

Aesthetically this is, by far, my favorite interchange. My question is, is there ever a time when an A4 or B4 parclo would be preferred over a double trumpet and if so, why?

[@YUMBL]

Yes, a parclo is preferred often. Each of these are used very differently though. A free flowing SYSTEM Interchange (double trumpet) is for connecting one highway to another. A SERVICE Interchange (parclo) is for moving vehicles on and off the highway.

[@baconwizard]

Another detail you could add is banking the circles so that they’re smoother turns for the drivers (like real life)

[@YUMBL]

An ATM machine certainly would be convenient ;)

[@bescotdude9121]

@@YUMBL very funny YUMBLtv I think what Bacon Wizard is suggesting it to slope the loops like how the race track at Daytona is sloped to increase cornering speed

[@johnterpack3940]

You should check out the interchange between Loop 12 and I-30 in Dallas, TX. It's "interesting".

[@JohnKerbaugh]

Would be an added challenge to see adapting from an existing square intersection without the offsets on the one highway. I assume it might be possible with angled trumpets diagonally.

[@JohnKerbaugh]

A minimal impact change design

[@bunna65]

You are a genius mr YUMBL,will it be on the workshop

[@YUMBL]

Hopefully soon!

[@HesteBremse]

I don’t get how 8m high minus 2-3 m for the underpart of the bridge is enough? - it leaves about 5m free heigh, and some cranes and other special vehicles might be taller than 5m or ?

[@YUMBL]

The bridge is probably 4m thick. It looks way too short if its any lower that 8m.

[@minarii111]

would this be available on your workshop?

[@nicholaslangheld8394]

What is your opinion on the Pinavia interchange? It beautifully shaped but is truly massive. Although I love the idea of using the central area for business or university etc...

[@rd9102]

All i want to know is did you put it on the workshop? ALL OF YOUR STUFF SHOULD BE ON THE WORKSHOP...please?

[@kaltaron1284]

Very impressive. At a certain point wouldn't it be worth it to make the incoming highways four lanes so that you can split them into 2 two lanes and prevent the need to immediately merge the oncoming lanes for the right and left turns?

[@YUMBL]

It would!

[@kaltaron1284]

@@YUMBL Alternatively you could reduce the straight lanes to one but that would probably look a bit strange. I guess the main drawback of an intersection like this is that it takes a lot of space and in places where you have enough traffic to need something like this, you often don't have that. Or you would have to rip out a crucial intersection for a few years to build a better one. Real life unfortunately has no pause function.

[@lucashoffses9019]

I got an ad for a trumpet mouthpiece before this video

[@ileiad]

Interchanges are works of art in civil engineering and urban design.

[@Griffolion0]

Yumble doing these interchange videos is basically as close to crack as you can get on YT.

[@KingLarbear]

This game could use better signals, signs, and pavement markings to make things more clear, but I believe the next few updates will bring these things

[@kevinmccarthy2793]

This is really beautiful. What about in city intersections with non-highway roads?

[@YUMBL]

I’ve made videos on those as well.

[@krzysztofprzygudzki9209]

I personally don't like the fact that the through lane on the overpass is not straight and slows down the traffic. But I guess this could be fixed easily by increasing the through lane radius considerably (basically elongating the s-bend). Very cool design otherwise.

[@bazzakrak]

Hope you can get it to go up on the workshop, looks great and I am wwaaayyy to lazy to make it myself 😎

[@slate613]

Could always use a path to place an N for north beside one of the roads to help with orientation. I'd love to see you try to recreate the I-70/I-75 interchange in Ohio. It's a bit bizarre! lol

[@thepaipedro]

Trumpet interchange is my fav by far

[@denimdaphne]

Fantastic tutorial Yumbl! Question about overpass heights for you. How do you set the height to 8m? Is that using a mod? I can only seem to increase road heights in 12m increments currently

[@YUMBL]

The green bar button is default. It can go down to 3m increments vanilla. With “fine road tools” you can use 1m increments.

[@denimdaphne]

@@YUMBL Ah! I've never really investigated that button, but that makes a lot of sense. Thanks for the reply! I really appreciate your videos!

[@Mokkachino]

Very interesting video!