Screenshot China is using acoustic cameras to catch honking drivers. Cameras have been rolled out in 40 cities, and work by capturing a two second film of a honking car. The footage is analyzed by police to determine if drivers had a fair reason to honk and if not they'll receive a $16 fine. This may be the first step to link car honking with penalties for a driver's social credit score. Congestion in Beijing can be unbearable. With far more than 5 million registered cars, traffic can crawl at half the speed it does in New York City.