Forbidden Techniques that DESTROY Downtown traffic! 

I agree.

same

the turns could leverage height deltas (bridges) to avoid crossing. Only half the height would go down into the ground, and half the height could be a bridge.

the most efficient one is to ban 4 wheelers

how do you print as markings the results of the lane connection toolrs ? widening an intersection so the turns don't meet each other wase eye opener for me. and i'd love to create beautiful markings too :)

My favorite name so far is “Divergeabout” 🤪

I was patiently waiting for Biffa's response to that divergabout. Marvelous.

@@YUMBL Diverging Donut? lol

@@cm24624 hhhmmm Donut! lol

@@YUMBL since 'diverging diamond' sounds precious I'd call this gem 'diverging pearl' for it's circular shape

yeah, it looks a lot like a diverging diamond, in spirit if not in shape :)

Divergeabout is the best name for this

Couldn't agree more!

Agreed!

I think this construction could even work in real life and be safer than a lot of intersections!

@@dinamosflams It could work but I think it wouldn't be the most cost efficient.

@@xKiLLzZx1 neither is the existence of houston or florida

@@dinamosflams this thing exist in real life

Agreed, Can really imagine quite a few real life downtown locations that would've had traffic travel a lot more effeciently with a solution like this. Thanks Yumbl, and Rik for the extra right of way suggestions.

The entering traffic is meant to yield, yes. Then they make their left and leave.

You don’t need to bash the US about it though. Not really called for. The rest was nice though :)

@@gi0nbecell Show us on the monitor where the highway system touched you. I am sure your Road building company is the greatest of all time and you have figured out all of life's intersection issues. Take some time to chill and realize that nobody cares what you think.

@@gi0nbecell Sounds like you need a therapist man, you appear to have some issues you need to get out. And our war for independence has nothing to do with roads. We didn't fight to get rid of our traffic woes. (man , that would be a stupid thing to have a war over)

Use it’s power!

The tunnels are much harder to work with, but an extra bypass is beautiful :)

It kinda looks like a braided roundabout

@@stamptest3957 Since the intersecting roads meet perpendicular it can be referred to as being woven together. That means you could call this a weaveabout which I just think is delightful. So yeah, Contraflow turbo-weaveabout

It's more a hybrid roundabout/diverging diamond than anything.

I like Karl Rovey's idea. It's a diverging roundabout.

Long name, but describes the intercection 😁

I saw a diverging diamond in this solution, too, but with an extra underpass. (DDs are actually quite common in Utah as well. I don't remember seeing one in Minnesota, but I just took the I-90 across it, with a detour for the twine ball.)

Diverging Donut?

@@michaelchamberlain9649 Diverging donut decribes it perfectly.

Swindon was the first thing that came to my mind when I saw this.

Swindon has more points of conflict, takes up far more space, and being substantially less vertical, probably cost a lot less to build. It also solves for a more difficult set, being 5 roads, for which 'throw bridges at it' doesn't work, and doesn't have to deal with the same volume of traffic. So while I say it has more points of conflict, it's not proportionally *much* more, and I guess I can see where you got the comparison, but it wasn't obvious.. For future reference, you may wish to consider the word 'egress', as although it's irregular, it is still the formal word in English for 'outgress'. 'When you ingress into congress, if you transgress you will egress.' Consider that sentence *pun*ishment.

Love it 😂

Bro ,I was working on a spot today, running buses galore, island city, and fun road networks work, try em, I'm on islands, so every place is different with different interchanges and junction's it's so cool

How about, 'doubly diverging compact circle interchange' or DDCCI?

Monstrosity in terminology only, elegant in design and function.

no money in it....been done before.

Exactly like a roundabout, but completely different!

The “roundness” is incidental and decorative at this point.

It's a 'DRIVE" Diverging Roundabout Interchange: Very Exotic edition

I don’t know if it is used irl; but if it isn’t, it needs to be!

It works better than it deserves to.

@@davidroddini1512 it may have slightly fewer conflict points than a roundabout but, at least as shown, they’re perpendicular rather than merging. That makes visibility poorer and collisions much more dangerous.

Visibility is better.

@@YUMBL maybe it's a marginal thing. As I visualise it, the point you cross the yield line you need to look almost over your shoulder to be sure it's clear of fast moving cars, whereas a roundabout can be joined looking forward. And I think the potential for perpendicular collisions is more concerning! It's a clever idea, either way, I'm just not sure it's a roundabout-killer.

Nailed it.

@@YUMBL How about a round about where each lane is dedicated to its "on lane" and spiroles inward to one center lane connected to separate off-ramps (tunnels) to their respective destinations. This might be called the "Flush-About." Every turn would be a left-hand turn.

Real life would, in stark contrast, take into account the truly terrible (highly unsafe, badly positioned) pedestrian crossings, totally ignored here; cycle paths; existing utility infrastructure; minor road access for businesses/residences at the intersection (presumably the reason that it cannot be expanded in size, after all); drainage and sewer problems, highly impacted by the big concrete walls and the tunnel; and the higher visibility provided by using a bridge, that was here called "ugly". And in real life any lane closure caused by an accident or a utility company needing to do work would totally disable traffic flow in one or more directions with this intersection, because there would be no way to adjust to a temporary alternative layout. Do not confuse this game with how real life works. The game is a vast oversimplification here that _ignores everything_ except motor vehicles, and doesn't yield "well designed" real life stuff.

@@JdeBP To be fair, one of the best 'traffic fixes' available is better pedestrian access, except in industrial areas. Everything else is spot on though.

@@JdeBP I think this looks pretty good for pedestrians, cross 2 lanes, stand on a large island and cross another 2 lanes. If you wanted the same traffic flow on a regulair intersection you would probably need 10 or 12 lanes.

IRL it would be a real nightmare to navigate.

Most of Florida is swamp or near the coast. They probably avoid sunken underpasses as a general rule to avoid flooding.

@@ScottMStolz you missed my sarcasm, lived there for 25 years

@@JimEstep12071 LOL. Yeah I did. :D Sorry. :) I wish they wouldn't build so many sunken underpasses in Houston though. They flood every time there is a hurricane or major storm.

It would absolutely destroy a city’s downtown. Major traffic like this should be diverted away from city center, putting it in the middle of the city would just cut the city off from itself. Not to mention all the pollution everyone would be breathing in and the constant droning noise and you’d have nobody wanting to go anywhere near there.

You heard it here first: a roundabout would destroy downtown. Oh the urbanity.

Interesting idea! I’ll try to wrap my head around it

The rest of the world doesn't need yellow American road markings, because Europeans and Japanese etc understand context and don't need information spoon fed to them like Americans.

Really thoughtful stuff Ben…

We could call it the triple-D 😃

Ecsplaine = explained* My comment has recieved a heart (wich I apreciate), so I'm not editing it!

Love it! Thanks a lot :)

Glad to help :)

That much is undeniable.

Yeah, there are only like, 8 conflict points, 2 per left, but, the lines of sight make for high visibility, along with reduced speeds, should make it very safe for cars.N̶e̶e̶d̶ t̶o̶ l̶o̶o̶k̶ a̶t̶ i̶t̶ a̶g̶a̶i̶n̶ f̶o̶r̶ f̶o̶r̶ p̶e̶d̶e̶s̶t̶r̶i̶a̶n̶s̶　single lanes, and a lot of islands. Antastic for pedestrians

Agreed!

These “right of way” crossings on the “Divergeabout” are brilliant as I only see those 4 crossings as the only points of conflict which, as already mentioned elsewhere, have a high visibility safety point. Building this irl would be, although very efficient for traffic flow, very expensive due to the nature of the “tunnel and overpass” costs even though they could be built as a big dig and then covered as the construction advances. Having said that, if the “big dig” is taken into consideration, then adding pedestrian underpasses (with ramps and stairs) into the center would open the whole center area as a possible green zone. Of course safety measures would have to be implemented for “runaway cars” or cars falling off the side of the overpass - one never knows why, but it happens. Also, by adding pedestrian underpasses, exit routes for eventual accidents in the tunnel could be implemented, and also could be used for maintenance access. The only thing is, some form of drainage would have to be developed if a torrent (be it downpours or other flooding) occurs, but since lighting for the tunnel and underpasses would be essential, power for pumps and air ventilation should be available. Heck, it could open a whole business area for pedestrians… thinking about the way exits from some train stations in Europe are built where you can exit the station under ground and have shops and other facilities down there… I think I got somewhat carried away 🤪

It’s got me where I am today!

I’m glad to hear it :)

as a biology nerd.. you could see it like an theorical exercise... you know, streets as veins and cars as cells... then you can figurate that the heart is a roundabout with 4 lights for 2 different circuits

Saves your page keys a few clicks ;)

The yields in the circle worked excellently though

I think the issue is cars going straight are also using the roundeabout. maybe increasing speed in the tunnel-bridge and managing roundabout better would help

The tunnel and bridge are already 40, which is the speed pf the main road. Reducing the roundabout is the sensible solution, but it becomes too slow to keep up regardless.

@@YUMBL I meant to do that to make them prefer the overpass rathern than choosing roundabout to go straght. Redusing speed on the roundabout is probably not a Good idea you're right there

Well, it's just 4 more meshes to make if the asset pack's creator wants to allow that: single-lane tunnel entrance (right half of road only) - going down; single-lane tunnel exit (right half of road only) - going up; single-lane elevated road-on-wall (right half of road only) - for ramping up and down; single-lane bridge (on pillars) (right half of road only) - for curving over the intersection. Would be super tight though, with the additional concrete barrier between the up and down rams needing to fit into the width between the flat outer lanes.

thats what i was thinking, yeah.

Has anyone done this?

What? I never joke about music. It’s all the same. Only the names have changed!

;)

It would be quite a sight! 😂

;)

Yes, excellent visibility.

Very cool! It was certainly new to me when I did it. I though the roundabout version could do it initially.

Good luck!

It was a bit of a hassle to build but it worked wonderfully, replaced two of my main problem crossings twice, you brilliant man, you've saved my city a considerable restructuring of the road network!

Glad to help :)