Traffic Police Simulator

What is this experiment about?

Two roads meet right here, and only one can move at a time. Watch both queues and switch the flow before either one backs up.

Questions kids ask

Why can't both roads move at once?

Cars from crossing directions would collide right in the middle of the junction — someone always has to wait.

What happens if a queue gets too long?

Traffic backs up further and further down the street — that's a gridlock, and it's what the game is warning you about.

Is this how real traffic police work?

Yes — at a busy junction without working lights, an officer manually decides which direction moves, just like you're doing here.