Is this the BEST HIGHWAY INTERSECTION in Cities Skylines 2?

Part 15 of Engitopia returns! We're checking out Cities Skylines 2 (City Skyline 2) today, and this time I recreate a diverging diamond interchange!

LINKS!

Epic Game Store Support-A-Creator Code: RCE

(In connection with Epic Games’ Support-A-Creator Program, I may receive a commission from certain in-game purchases)

#realcivilengineer #CitiesSkylines2 #engitopia

[SimSpartan]

There is a version of diverging diamond that doesn't use traffic lights, "double crossover merging interchange" (DCMI). It solves this by adding more bridges, so Im amazed you didn't know of it.

[Republic_of_Stocity]

20:26 ‘Biffa I need you to fix my city please…’

Too real

[whitleeGTCS]

This was a real architect move, right there. Eliminating a free flowing interchange in exchange for traffic lights while the shit runs downhill. 😂

[mcpenguin]

"way more examples of like some realistic stuff"

The plane in the background falling out of the sky 💀

[venisontron]

DDI is generally best for a slow moving road interchanging with a faster moving highway. The biggest advantage of it is that you can take a pre-existing diamond interchange and convert it into a DDI while barely having to change anything at all. On a slow moving surface road or even on an overpass, the crossovers can be plopped right down on the original roadway, and the guts of the traffic lights are already there, they just have to be shifted around a bit. You don't have to lay down any new road.

What often happens is they build a higher barrier between the two sides of the road where they're flipped, because it messes people up when they see themselves on the "wrong side", and they feel more comfortable if there's something that prevents them from seeing the opposing traffic.

[dylandepetro]

Road-nado is a piece of architecture. Just thought I’d toss that out there. However, “trumpet” intersections are a legit workhorse of an intersection. They are simple, take up less space, and they just work.

[digitaleva]

There is a diverging diamond near me. All it has managed to do is make traffic in the area worse, as the planners decided that, for some reason, they needed to combine it with a freeway entrance/exit at a point where a divided road loses its median and gains a left turn lane. The number of near misses that have occurred at it since it's completion in 2019 is insane.

[agathoklesmartinios]

RCE: "Oh, no, we've poo-lluted the river!"
Me: Yeah, sounds like Britain, all right.

[DavidCommini]

I remember when they added a DDI in Anchorage, Alaska. A lot of people thought it would cause more accidents and traffic. The reality is that traffic collisions and traffic congestion dropped considerably.

[T_A_N_G_Y]

2:01 the fact that you were actually able to find a potato in the same shape

[rfactor]

Clearly you need a fractal diamond interchange. A diverging diamond made of diverging diamonds. Send traffic into basically every direction possible, and maybe a few that aren't.
Need to park near the footpaths to the pedestrian zone? Take the fractal diamond.
How about shopping in downtown? Fractal diamond!
Need to dive to the depths of the new lake of poo? Fractal diamond!
Clip through reality to get your car up to the great draft table in the sky? Fractal diamond!

[imperator]

My first thought when seeing you connect up the slip roads is that some of those stoplights can only fit like 3 cars before it backs up across the exit.

Also, unless shown ironclad empirical evidence to the contrary, there is no situation in which I will ever believe that a design with stop lights is better than one without, when highway speeds are involved (and there is basically unlimited space)

[SnyperMKJclL]

We have one of these in Michigan however its a tiny bit different... the helix portion of the road is "16 mile road" a major surface road and the straight through portion is the Highway "I-75". It helps woth congestion a TON especially because you no longer need to get off the highway and do a "Michigan Left" to go the direction you wanted to go, now instead if you want to go west its super easy to just go west instead of east then turning around west.

[jackmun]

We have one of these maybe near where I live and it is a nightmare since there is a NHS(Asian equivalent) near it and and an intersection not 500m from it. Cars that just got off the highway immediately had to slow down since people had parked on the side of the road (NHS parking overflow) and people struggle at the intersection where just no one would follow traffic rules

[AkariEnderwolf]

one of the problems with the DDI is when the engineers decide to put it in with 90 degree turns on the on-ramps and expect people coming from the bridge to go full speed and the people who have to slow WAY DOWN to make a 90 degree turn, to merge seamlessly.

[Gesteppie]

Looking at the grade separated junction reminded me of a construction of one of these near my home when I was growing up. It was part of a busy intersection and they had decided to "upgraded" it.
They had 3 severe accidents on it within the first week of opening due to a blind spot x)

[eriel-fu]

Looking how chaotic engitopia is, having a realistic intersection is really chaotic

[sixer__]

they just built a diverging Dimond near my city and the only reason i knew what to do on it was because of one of your other videos that you made one. thx

[AndysAdventures]

On the diverging diamond interchange could you not make a small bridge at each end and get rid of the traffic lights making it even more efficient. As the only reason for the lights is for lanes to cross. Make it a bridge instead

[nhobbs]

Phoenix, Az installed one of these not too long ago. absolutely hate them.

As a result of the angle of the x and the placement of the lights on the opposite side of the intersection from the line you stop at; when a driver is proceeding through the first light, they can, in their periphery see the red light stopping the oncoming traffic. The result is many people hesitating mid intersection, which intern causes a minor hiccup in traffic that gradually gets worse to the point of stopped traffic.

Happy Valley road and the I-17 for those interested in looking at it in maps. the placement of the lights is the real cause of the problem. city skylines puts lights on the corners right on the stop line so its less of an issue.

Additionally because the one in phoenix has frontage roads. So additional roads need to be connected into it which is messy, adds an additional set of lights, and exacerbates the problem.