We deal with traffics wherever we go. That is the first thing that modernization has given us. We might not want it, but it is part of the modern technology that we enjoy. Anyway, we can deal with traffic, but not accidents. Accidents often occurred on high-traffic areas.
In this game, you control the traffic as you can turn on and off the traffic lights. Cars will be flowing smoothly, but it is up to you to make sure that there won't be an accident. You can proceed to the next level once all the cars make it through.