The city I've been working on today is shaping up nicely, but I'm very quickly going to start having issues with traffic. I've managed to mitigate a lot with public transportation, but even so my intersections are BARELY handling the traffic I have. Once I fill out the rest of my skyscrapers and start adding in the further out apartments, I feel traffic becoming NIGHTMARISH.
Man, if Le Corbusier and the other modernist city planners had copies of Cities Skylines, the world could've avoided a whole lot of disastrous car-dependency.