Junction - under your control

You are the main organizer of your junction. Your task is to control four traffic lights to avoid any accidents and to maintain the flow of traffic. Look out for the cars' trajectory. The cars do not go just straight but they can turn left or right at the junction. With the passage of time more cars are coming and the situation at the crossroads is becoming more complicated. There may occur a traffic jam at your crossroads that can lead to the end of the game. Be smart and alert! Time also plays a role.