A piste is a marked ski run or path down a mountain for snow skiing, snowboarding, or other mountain sports.
This European term is French ("trail", "track") and synonymous with 'trail', 'slope', or 'groomed run' in North America. Pronunciation varies slightly in English, with British English using a long "i", (e.g. rhymes with "beast"), and American pronunciation using a short "i" (e.g. rhymes with "list").
Increasingly, North Americans employ its common European antonym, 'off piste', to describe backcountry skiing, especially when referring to skiing outside officially approved areas of a ski resort.
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Piste maintenance
Pistes are usually maintained using tracked vehicles known as snowcats to compact or "groom" the snow to even out trail conditions, remove moguls, and redistribute snow to extend the ski season. Natural snow is often augmented with snow making machines early in the season or when the snowpack is low.
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Ratings
Typically, grading is done by the resort, and grades are relative to other trails within that resort. As such, they are not classified to an independent standard; although they are likely to be roughly similar, skiers should be cautious about assuming that grades in two different resorts are absolutely equivalent.
North America, New Zealand and Australia
In North America, a color-shape rating system is used to indicate the comparative difficulty of trails (otherwise known as slopes or pistes). Australia and New Zealand also share the same rating system.
Ski trail difficulty is measured by percent slope, not degree angle. A 100% slope is a 45 degree angle. In general, beginner slopes (green circle) are between 6% and 25%. Intermediate slopes (blue square) are between 25% and 40%. Difficult slopes (black diamond) are 40% and up. However, this is just a general "rule of thumb." Although slope gradient is the primary consideration in assigning a trail difficulty rating, other factors come into play. A trail will be rated by its most difficult part, even if the rest of the trail is easy. Ski resorts assign ratings to their own trails, rating a trail compared only with other trails at that resort. Also considered: width of the trail, sharpest turns, terrain roughness, and whether the resort regularly grooms the trail.
Europe POU
In Europe, pistes are classified by a color-coded system. The actual color system differs in parts for each country - in all countries blue (easy), red (intermediate) and black (expert) are used. Shapes are not always used - sometimes all ratings are circles as being defined in the basic rules of the German Skiing Association DSV. The three basic color codes of the DSV have been integrated into the national standards DIN 32912 in Germany and ÖNORM S 4610 f in Austria.
Slopes marked green, blue or red are groomed in all countries; blacks are groomed in Italy, Austria and Switzerland, while in France most black slopes are not groomed, but some are. All other classifications are generally not groomed. Sometimes slopes are marked dotted or as dashed lines, this also signifies that the slope is not groomed.
The ratings are:
Alpine slope classification in Europe is less rigidly tied to slope angle than in North America. A lower angle slope may be classified as more difficult than a steeper slope if, for instance, it is narrower and/or requires better skiing ability to carry speed through flatter sections while controlling speed through sharp hairpin turns, off-camber slope angles or exposed rock.
Japan
Japan uses a color-coded system, but shapes do not usually accompany them. Some resorts, mainly those catering to foreigners, use the North American or European color-coding system, adding to the confusion. When in doubt, check the map legend. The usual ratings are:
Japan has more than 1000 ski areas (115 in Nagano Prefecture alone), many of them small and family-oriented, so comparisons between slope classifications in Japan and "equivalent" slopes in Europe or North America are minimal.
Source of the article : Wikipedia
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