If you like this game consider checking out Cities Skylines. Traffic is a major part of the game. With the vanilla edition you can already do a lot, but if you want to route lanes you need the traffic manager mod https://steamcommunity.com/sharedfiles/filedetails/?id=16376...
Do any of the mods give the simulated people real commutes? I gave up after I made a city with a full subway system and zoned areas and watched as the simulated citizens left home, went to work, and then went to another random home at night.
It completely ruined my fancy subway system's timetable. :(
Cities Skylines with the traffic manager mod is a great way to spend a whole lot of time if you are bored. It’s surprisingly fun to try to optimize traffic.
And surprisingly frustrating. Why is my city gridlocked? Because only the left most lane of my 6 lane avenue is being used by these 1000 hot dog trucks leaving my port.
As far as I've read, you can solve that problem by just not connecting the parts of your city, in which case the population just pretends everything works.
It completely ruined my fancy subway system's timetable. :(