In some cases, catch points and trap points direct vehicles into a sand drag or safety siding, also sometimes called an arrestor bed. This may be a siding simply leading to a mound of sand, gravel or other granular material, or a siding where the rails are within sand-filled troughs. This method of stopping a vehicle travelling at speed is preferred over a buffer stop as there is less shock to the vehicle involved.
Read more about this topic: Catch Points
Famous quotes containing the words sand and/or drag:
“For in this yellow grave of sand and sea
A calling for colour calls with the wind
That’s grave and gay as grave and sea
Sleeping on either hand.”
—Dylan Thomas (1914–1953)
“Executives are like joggers. If you stop a jogger, he goes on running on the spot. If you drag an executive away from his business, he goes on running on the spot, pawing the ground, talking business. He never stops hurtling onwards, making decisions and executing them.”
—Jean Baudrillard (b. 1929)