Instead of modding traffic lights out altogether, how about modding the sequence traffic has right of way?
At the moment, when 1 flow of traffic is moving in parallel opposite directions, the traffic tries to cross over each other if they need to turn/ U turn. Mod it so that turning vehicles go first. then get a red light, then straight gets green. and so on...
At the moment, when 1 flow of traffic is moving in parallel opposite directions, the traffic tries to cross over each other if they need to turn/ U turn. Mod it so that turning vehicles go first. then get a red light, then straight gets green. and so on...