Roads are naturally built by cities over time as they grow, but they can also be placed by the player.
Roads are 3 tiles wide (15 meters) and 3 tiles tall.
Select the Road category at the bottom of the screen, then the "build roads" tool.
Click anywhere (free of other buildings/objects) and click elsewhere: the game will automatically place roads to connect the two points.
You can make road tunnels by pressing **T** when building a road.
Adjust the depth of the tunnel by pressing **Z** and **X**.
Tunnels cannot make turns.
You can make road bridges by pressing **B** when building a road.
Adjust the height of the bridge by pressing **Z** and **X**.
Press **N** to change the type of bridge if you've unlocked more types via the Research.
Bridges cannot make turns.