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:
“Unhappy is the man for evermair
That tills the sand and sawis in the air;
But twice unhappier is he, I lairn,
That feidis in his hairt a mad desire
And follows on a woman thro the fire,
Led by a blind and teachit by a bairn.”
—Mark Alexander Boyd (1563–1601)
“Keeping up with the Joneses was a full-time job with my mother and father. It was not until many years later when I lived alone that I realized how much cheaper it was to drag the Joneses down to my level.”
—Quentin Crisp (b. 1908)