Building a Perfectly Imperfect Highway System in Cities Skylines 2 | MC #14

Some people see traffic and think it's progress... but those people obviously don't live in Magnolia County. With the recent growth, the entire region is becoming choked with traffic and residents are becoming increasingly frustrated by every other part of the state getting transportation investment outside of Magnolia County.

As opposition to the governor begins to organize, she instructs the department of transportation to figure out a way to get highway funding for the County. While they are able to secure funding, it isn't 100% of what would be needed for a completely grade separated system. Regardless, it's a start, so the project is green-lite and begins today. I guess it ends today, too. Woohoo!!

In this episode, we'll build a MASSIVE highway system completely with multiple system and service interchanges including a diamond service interchange, three-way system interchange, dumbbell service interchange, modified partial-cloverleaf (parclo) service interchange, and a t system interchange. We'll also build the first signature bridge in the county. Enjoy!

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CHAPTERS

Y'all better leave Darryl Alone - 0:00
The Interchange-sized Elephant in the Room - 3:15
I bet the neighborhood is going to love this - 4:13
I have never built so many interchanges at once. Bad idea? - 21:18
Spraying and Softening - 49:01
Look at all the interchanges I built!! I'm pumped! - 54:29
Fixes based on TONS of feedback, ha - 55:46

[CityPlannerPlays]

I need to modify the junction near the university based on Doddibot's advice. Give them some love for putting together an absolutely excellent and professional video!

[VaingloriousGaming]

re: pipes & utilities under the highway. Maybe it was an outlier, but years ago I recall when my former hometown was undergoing a MASSIVE IRL mulligan connecting two highways, a rail line to the power plant, and several commercial corridors, they also moved a ton of utilities. In residential areas, the water & power were under the road, right where they belong. But along the highways, they were buried off to side in a right of way area. The explanation was you want them under the road in residential so you don't wind up digging up someone's yard, but on highways, you want them offset so you don't wind up digging up a multi-million dollar segment of a high traffic highway.

[fgm]

Turning an urban street into a highway... America strikes again! :D

[IceDree]

I sense an eventual story follow up where the city decides to demolish the highway and reclaim the riverfront.

Excellent work, Phil.

[advancify_]

we need someone’s villain arc in this story lol

[bongieger]

Man i love the roleplay-y style of this series, DoT taking land, local politics, tiny stories. Great series my man!

[Tonyuk]

It's so nice to watch a CS2 video where the creator is actually taking some time over what they are doing and not just throwing down 8 line roads and multiple trumpet junctions every 5 feet.

[drewpatterson]

This episode feels like a lesson in induced demand. American planning going hard

[PMfromMB]

38:18 Maybe the replacement should be called "Walkable Community Memorial Park"
Jokes aside, I genuinely feel really sad for the people of East Bend. I commend you for your realism as always but this kind of car-before-people planning in American cities is really heartbreaking to me 💔

[TomatoJoe]

Transportation engineer (soon to be licensed, fingers crossed I passed my exam) here. The section at 18:30 was probably better off with the single, sharper curve as apposed to the two "flatter" curves (even though one of those curves seemed as sharp as the original).

In real life, the two problems I could foresee you running into here would be Stopping Sight Distance (SSD) and Minimum Tangent Lengths (and possibly Superelevation Runout and Runoff Lengths). Both will be hard to determine definitively if the road you designed would be problematic without numerical design data.

For the SSD, generally roads are designed such that drivers can continuously see X feet ahead of them so that they can recognize and react to the danger. X is a function of design speed, so a freeway with presumably 55 MPH+ traffic would have a large SSD; drivers need to see a longer distance in front of them.

A driver on the left freeway at 18:30 was driving south (from top to bottom of screen) when they hit the second curve, with the elevation change due to the upcoming bridge, and the trees on the inside of the curve, they may not be able to see enough in front of them to be able to react appropriately to say a stopped car in the middle of the road.

For the minimum tangent lengths (which would impact superelevation runout and runoff lengths), basically you would want a long tangent piece of roadway to be able to bank the freeway slowly enough. Roads are generally designed as: Tangent (a straight line) > Curve > Tangent (another straight line pointing in another direction). I think it's always ideal for a long tangent piece.

Hope this helps :)

[Nephaera]

I'm so relieved Magnolia County isn't doomed to spiral into land value death. I really want this series to go as long as possible, I love it SO much

[magvad]

Putting a highway right through the center of a university campus AND cutting off the river from most of town?

Bold...BOLD planning, how you got it approved is truly a miracle. How you can live with yourself is beyond me. The people of Bend will look back on this era like NYC does Robert Moses.

[JimmyMcAwesome]

The bridge at 18 min is insane. The extra curve you added in after it is an even tighter turn than earlier. Just have the bridge itself be curved, many bridges are curved and will be an even more interesting part of the community.

[blkmamba]

I am watching a video that is basically just building a road, but it really speaks to the quality of your story telling. I am so vested in the county that I appreciate that this is a massive moment.

[justanotheraccounthere]

The portion of highway through East Bend neighborhood is perfect for a sunken highway design. Put the highways at least 7.5 meters below ground level but still exposed. Local/ped roads can still bridge over them with minimal span, and entrances and exits can be built by diverting parallel local roads. For added realism, add retaining walls along the righthand side of the traffic flow. No sound barrier necessary, minimal bulldoozing, allow zoning super close to the highway and basically no change to the grid at all.

Though such a project might be beyond the financial capacity of a County with only 20k population.

[rebecca]

This is another build where the national differences in urban planning get really clear - I've always found the fondness for completely limited-access highways in CS a bit odd because they're relatively limited, especially outside of major cities, in AU, and the amount of interchanges in a city this size seems absolutely wild where at grade intersections or roundabouts would be way more common.

[dylanhelmenstine]

I know it can be frustrating...but the music you play whenever the road mechanics give you hell is so funny to me. It makes me laugh out loud every time!!!

[JHDrago]

The Jonses, The Williams, Nick King, and Chuckles on the advisory committee is my Avengers Civil War

[Chaosonic]

With those big land buys you made, now they're missing the Jeffersonian grid!

[kenzieduckmoo]

Daryl: We dont need more roads! Our town is just like Phil intended it!
Governor Johnson: Phil?
Daryl: You dont know Phil? He's the guy that plays the game that determines all our fates.
Governor Johnson: I see.
Daryl: We're living in a simulation you know.
Governor Johnson (to assistant): Take a note, we need to increase mental health spending in Magnolia County