Unlike a clip taken from a film or viral meme, this is a generic field recording of highway traffic, the kind of everyday sound effect creators keep in a library for instant atmosphere. Sounds like this have circulated on soundboards and editing sites for years because they are easy to reuse and instantly recognisable, needing no context to work. Editors return to them for travel videos, animations, podcasts and short films whenever a scene needs the feeling of a busy road without recording traffic themselves.