- Biggest railway heritage mass participation event ever - more than 50 railways and up to 200 locos to sound off with whistles and horns to start year-long celebration
- Overseas railways, train modellers Hornby, commemorative loco 910 and Thomas & Friends™ to join in.
- Public invited to get involved and share activity on social media.
A celebratory cacophony of train locomotive whistles and horns at midday on 1 January 2025 will signal the start of the 200th anniversary of the modern railway.