Shown for the first time at Gamescom is the Cities: Skylines alpha trailer which once again shows the game’s scale, but it also shows how road placement and zoning will function. It’s not exactly clear which what each colour of zoning will actually handle.
There’s some pretty crazy road placement further on in the video which has been added to demonstrate the road tool’s flexibility.
For anyone concerned about this being online only, fear not, it specifially states “play offline”. You can breath a sigh of relief.