Short transit sounds like this one circulate online because they give editors a ready-made sense of place without needing to record in a busy station. The Korean wording marks the setting immediately for viewers who recognise the language, while the announcement format is familiar even to listeners who do not understand every word. That combination makes it handy for travel videos, city montages and comedy sketches that need a quick location cue. As short-form video has grown, creators have reused brief station clips as scene-setters rather than as jokes in themselves.