Has the problem been solve at the 4 lane intersection with the other 4 lane intersection? Where cars in a right lane turns left at the intersection.
Clearly that breaks traffic laws. This cause traffic jams.
That is because you somehow managed to redirect traffic. Try not to redirect traffic, and do not let your ambulances and cops patrol the streets. Instead spread them out in the city on a parking lot and put them in standby.
If you do that you will see there are no more traffic jams.
I just had my first chance to play the new map extensively. The biggest traffic problem I have is people trying to make a left turn from the right lane. They cut off the people in the left lane and before you know it you have gridlock.
Do not redirect traffic
