Nothing works without roads in Cities Skylines - and because they are so important, this post is only dedicated to them. Here you can find out everything about placing, upgrading and "zoning" roads.

How do you place a road? This might seem basic, but especially for new players, this guide can give important tips to avoid beginner mistakes.

So what are roads needed for? Of course, your residents use the streets to get from A to B. This can be by car, on foot, by bike, or by public transport. But what is even more important: Without a connection to the road network, no building receives the supply of the important services. These include for example garbage disposal, police, ambulance,...

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Placing Roads

The small two-lane streets can be placed right from the start. Either as a curve, straight line, bridge or tunnel - it doesn't matter. When you later unlock medium and large streets through the milestones, you must be aware that these are four fields wide, instead of just two. Service buildings have to be relocated when you upgrade a small street to a larger one.

Building a curved road in Cities Skylines
Place a street using one of the four road tools in the build menu

When placing one-way streets and highways, you have to pay attention to the direction of the arrows. You can change the direction of travel of one-way streets and highways by clicking on "Upgrade Road" and then right-clicking the street. This way, you reverse the direction of travel. If you ignore this, parts of your highway network may not work.

For maximum space utilization, you can arrange the streets in a grid layout. If you have exactly eight fields to "zone" between two streets, you make the most of the space. However, don't build the entire city in a grid style, because there are also some service buildings that need more space than eight fields.


There are hardly any limits to the intersections in Cities Skylines. In the Steam Workshop you will find thousands of highway intersections and road networks, many of which are based on the real world.

Cities Skylines: How to Create Bigger Assets in the Editor
The area outside the white grid cannot be built on in the asset editor. With the mod “Fine Road Anarchy” you can make this grid disappear, which allows to create huge intersections.
Here for example, I recreated a real Florida intersection.

In addition to the standard intersections that are already included in the base game, you can also load your own intersections into your game to place them in your city. This way you don't have to keep building the same intersection in different places, instead you can use the blueprint for it.

Placing Bridges and Tunnels

After you have selected the starting point of a new street (the street is displayed now blue), you can raise and lower the street. This creates a bridge or a tunnel. To raise the road, press the page up key, to lower it, press the page down key.

You can also go into tunnel or bridge mode directly after selecting the type of road. So you can build a bridge segment without a ramp, or a tunnel.

As a bridge, roads often change their appearance. Try out some bridges - which one do you like best?

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