Train whistles and horns have been used as warning signals since the early days of steam railways, sounded at crossings, stations, and when starting to move. The steam locomotive version, known in Russian searches as gudok parovoza, became a familiar recording in sound effect libraries because its long, echoing blast is instantly recognisable. Online, creators reuse it for railway footage, transport jokes, historic scenes, and notification style edits, and it remains popular as an MP3 and ringtone because few other sounds convey movement and departure so quickly.