Maybe next time you make a game like this you need to give it a little more fun.
Here some ideas for the next game:1. make it where you win money to buy things for the game like more Red Lights, Stop Signs, Traffic Cops or even buy Store's to let the Cars Park in.
2.Maybe make it where you can drive some cars to there parking spot.
3.Make it where people can walk a crossed the road and the cars have to stop.
4. throw in some fun things.
I really like the first one better because this one makes the cars crash. But this is still a fun game so keep making more :)