It was hard to play. I get that I voted 1* on graphics since they were all imported. Polish 2* - There the control was inobvious at first, and hard to use once I understood it. Theme was good. "Flow of Traffic" though the flow of UX was poor, so I put it a 4*. I put innovation at 5*, I haven't played a game quite like this. I'm not sure how well this concept can be made, but it feels like there is more opportunity. for 1, I would start zoomed in with 1 intersection, then as enough traffic changes, zoom out to cover more.
The traffic signals feel tedious instead of fun. Swipe operations on a phone might work better. I.e. swipe through an intersection to change the flow to what you did. Auto turn red the others. That might work better, at least in UX.