Zipline is a high-speed method of descent on a roller using a tensioned inclined cable This way of crossing the canyons, rivers, glaciers and other obstacles is used by speleologists and tourists. For the zipline, a special protection and a block roller is used, by means of which a high-speed slip along the tensioned metal cable occurs.
For commercial purposes, zipline is used in the and entertainment business, can be installed in sport and entertainment centers.
Short zipline can be installed in the backyard of the house, on the playground, in the entertainment center. Small ziplines are often included in the rope park scope.
However, it is quite another matter when zipline, tensioned over chasm, reach several hundred meters, and the speed of descent reaches 50 km/h. Such a crossing requires detailed engineering calculation and special equipment: specialized rope, rollers, braking system, etc.