Oh for the chaos ahead

While Cities Skylines has a basic transit system currently to get maximum use from it you need quite a few mods like Network Extensions, Rush Hour and Transport Manager added alongside the base game.

However, never fear (err or might) Paradox are to release a new DLC called Mass Transit. Yep if you have already buggered up your cities with traffic chaos then Mass Transit with either fix it or make it even worse. If trying to retrofit into an existing city well then welcome to Auckland’s mess in trying to retrofit decent transit into a large urban area.

From Paradox Interative :

New Expansion for Cities: Skylines Majors in Commuter Science

“Mass Transit” Adds Monorails, Ferries, Cable Cars, and Blimps to City-Management Game