4 ms·
The low pressure air below passing trains travelling over 300km/h can cause "ballast lifting". i.e. Where ballast can be lifted up and become mobile causing saf
by guidedlight 3y ago
The low pressure air below passing trains travelling over 300km/h can cause "ballast lifting". i.e. Where ballast can be lifted up and become mobile causing safety issues, as well as accelerated deterioration of the track.
High-speed trains therefore use concrete track beds.
- lostlogin 3y agoThat’s terrifying. Travelling across France I soon came to dislike going under bridges and tunnels and the compressive effect it had on air as you hit them. That it’s also capable of sucking up rocks came as news to me, but it isn’t really surprising.
- andbberger 3y ago> Travelling across France I soon came to dislike going under bridges and tunnels and the compressive effect it had on air as you hit them. modern high-speed trainsets are pressure sealed for precisely that reason