I noticed this first hand while playing SimCity 4. I used to make my road network as connected as I could because I thought having more route options would alwa

I noticed this first hand while playing SimCity 4. I used to make my road network as connected as I could because I thought having more route options would always lead to better traffic. I was surprised one day when I demolished a particularly congested road and my overall traffic actually became better. After some experimentation I realized making the road graph more tree like by reducing pathing options you can force the sims to use higher capacity roads rather than having them all take low capacity backroads to their destination.