Cities: Skylines - Airports, the expansion that was announced on the 10th of December 2021, is now getting developer diaries to explain its basic mechanics.
Airports expansion lands in stores on the 25th of January and to ensure a smooth arrival developers have prepared Dev Diaries covering each new feature.
Airports use the Area Tool which can be found in the Districts and Areas menu and becomes available when your city reaches Milestone 4. It works very similar to Districts and other Area Tools with one exception: It flattens the ground and removes trees in preparation for your airport, adding a landscaping cost and affecting the amount of soil available to you. The 3 new maps added in Airports feature a lot of those that are suitable.
Once you are satisfied with the area, it’s time to start actually building your airport! All the items you need are in the Public Transport menu under the new Airport Area tab. A functional airport needs a terminal building, a plane stand, a runway, and taxiways connecting the plane stand to the runway. The Airport Area has a handy checklist alerting you to anything you’re missing to get your airport going!
The first thing your new Airport Area needs is a terminal. Once placed it unlocks the additional buildings and the concourse, runway, and taxiway networks needed to create your airport. Concourse networks serve as a connection between terminals and plane stands, which are placed along the concourse.
Next, the airport needs a runway for planes to land and take off. It works differently than most networks as it has both a minimum length and cannot be extended after placing it, so make it as long as you want it right away. Taxiways connect the runway and the plane stands in a one-way loop.