The Double Crossover Merging Intersection aka DCMIįor it’s size, nothing can hold up to the DCMI. If we want to use a six lane road we’ll need a bigger better service interchange. If we upgrade the two lane to six lane it will create lights and quickly cause traffic to back up onto the highway.

These strange behaviors are almost always the result of having interchanges to close together, having too many, and having exits and entrances from the fast lanes.īoth the Diamond and SPUI work well in the game for light to medium traffic so long as you are using a two lane road with no traffic lights. Only you can prevent weird merging and long single linesĪ major complaint new players have is that the cims seem to make crazy merges and will pile into one lane rather than use the other lanes. The SPUI is able to move a bit more traffic through the interchange before it will back up. The advantage to a diamond is you can turn it into a Single Point Urban Interchange (SPUI) very easily. While the diamond is cheap and easy, it can get backed up quickly. With highway’s unlocked we can also start using pre-made service interchange assets.Įarly Game – Single Point Urban Interchange Once you have the highways unlocked you can easily upgrade your diamond without having to change the layout. When you are starting out and poor the basic diamond service interchange is cheap and easy to make.

If you are playing without everything unlocked you don’t get access to highways but we can use one way roads and upgrade later. I like to leave at least 60 squares between a full sized highway interchange and my first service interchange. The first rule when working with highways is to leave a lot of space between your interchanges. To get off or on the highway we need a Service Interchange. In the picture we can see the T-interchange available in the vanilla game. Highway’s don’t have intersections, they have interchanges. The goal of this guide is to show you the basic ways to connect your city to your highways and help prevent you from making some common mistakes. The first thing you need to know to master traffic is how to get your Cims on and off the highway. Once you have gotten a handle on the “rules” in your city building, start bending and breaking rules to build crazy beautiful cities. While I will refer to certain “rules” you should follow, rules are meant to be broken. The examples are all using a very basic grid on a super flat map, but these practices can be applied to any map on any terrain.

Cities skylines highway ramps