i noticed on one of these, i think the shallot city grid one of the roundabouts has a backward section on part of it and had to completely redo the traffic management on it through the intersection, vehicles were using the on off ramps as a through way, they were pulling off the freeway to get back on it effectively u-turning everywhere but once id changed that,, boasts 80% traffic flow at all times,, thumbs up all round once ive finished with my main part of the city ill upload a screenshot of it, must admit im impressed with how it looks so far