If you have traffic issues it is because your layout is bad. Here is a 400k self-sufficient city with no public transit and no traffic issues.
@IrrationalBeast I could post plenty of videos outlineing how the traffic wasn't using all 3 lanes of the max density avenues.. and the traffic was only using 1 single lane instead of all 3.... its neither here or there really... theres plenty of out cry for the traffic issue, very very well doccumented as to "why" there is a traffic issue.... just because this particular city wasn't experiencing traffic issues, does not mean there is no traffic issue in the game.....
@IrrationalBeast Being force to use a certain fixed road design to achieve that means there is a big traffic issue.
@masterdrat @IrrationalBeast nobody is forcing you to use an efficient layout but the fact of the matter is that the AI takes the shortest path so if you don't plan for your avenues to be the shortest route then traffic should be expected to be a problem.
There are also little things that people probably miss when they are building, e.g. if you use med/high density avenues with medium density roads then the road motorists will yield to the avenue but if you upgrade the avenues to streetcars it puts stoplights at every intersection. Ideally it would be nice if you could control which intersections get stop signs vs. lights but I can see them saving that for some kind of DLC (along with religion) or expansion.
@masterdrat @IrrationalBeast and to be fair the city in the video is not in a region and the big traffic issues I've read about are things like 10,000 workers/shoppers/students from the next town pouring in and gridlocking and there is a bug that if the workers don't find work and get home before the day is up more will spawn.