The Class 22000 is a diesel railcar fleet operated by Irish Rail on intercity services around Ireland, recognisable to railway enthusiasts for its modern intercity design and regular appearance on mainline routes. Short recordings like this one circulate among train fans and video creators who want an authentic Irish train sound without recording one themselves. Its brief length makes it easy to reuse in edits, vlogs and social clips, keeping it useful long after larger railway sound libraries have moved on to longer ambient tracks.