Here’s a TGV speed test on a ballasted track. There’s an axle cam and it doesn’t look like there’s big chunks flying about but it does stir up a lot of dust at

Here’s a TGV speed test on a ballasted track. There’s an axle cam and it doesn’t look like there’s big chunks flying about but it does stir up a lot of dust at 575km/h (~360mph) https://m.youtube.com/watch?v=EOdATLzRGHc&t=11s&pp=ygURdGd2IHNwZWVkIHJlY29yZCA%3D https://m.youtube.com/watch?v=EOdATLzRGHc&t=11s&pp=ygURdGd2I...