Paris is testing "noise radar" that will automatically ticket loud cars

Parisians with powerful cars might want to think carefully before showing off their rides. Parts of the city (most recently the suburb of Villeneuve-le-Roi) are testing a “noise radar” system from Bruitparif that can pinpoint loud vehicles and, eventually, ticket them. The system uses four microphones to triangulate the origins of a sound and link it with CCTV footage to pinpoint whoever’s making the racket.

Just shy of 40 of the devices are in use so far, primarily near bars in Paris’ entertainment regions as well as 17 around major buildings.