More than a hundred people die every year after being hit by a train whilst trespassing on railway lines.
Those working for rail companies fear the rail safety message isn't getting through, especially to children.
Train driver Geraint Llewellyn almost ran over two children in Britton Ferry earlier this year. He's now offering lessons to schools to try to avoid another similar incident, and he's been lobbying AM's to add rail safety lessons to the national curriculum in Wales
No one was hurt in that incident, but it's had a big impact on Geraint.
Now the company he works for is supporting his campaign.
If they get their way rail safety would be put on the national curriculum, to try to stop other near misses or deaths