Trains clear the path with a laser
You can fight with fallen leaves on the railway with lasers placed in front of the train.
Wet leaves form a very dense and slippery coating on the rails, similar to Teflon. This is a threat: the grip between the wheels and the rails decreases, and the braking distance increases. Leaves prevent sensors from taking information about the state of the path.
Most transport companies use high pressure washers for this purpose, removing leaves with water. The method is effective, but has drawbacks: washes damage the rails and the substrate under them.
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The British were the first to use the laser in 2003, which was triggered by the 2000 railway crash and the problems that the leaf film delivered to freight trains.
Wet leaves form a very dense and slippery coating on the rails, similar to Teflon. This is a threat: the grip between the wheels and the rails decreases, and the braking distance increases. Leaves prevent sensors from taking information about the state of the path.
Most transport companies use high pressure washers for this purpose, removing leaves with water. The method is effective, but has drawbacks: washes damage the rails and the substrate under them.
')
The British were the first to use the laser in 2003, which was triggered by the 2000 railway crash and the problems that the leaf film delivered to freight trains.
Source: https://habr.com/ru/post/363987/
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