regularly. Europe In Europe, pistes are classified by a color-coded system. The actual color system differs in parts for each country, although in all countries blue (easy), red (intermediate) and black (expert) are used. Shapes are often not 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. In Scandinavia, a similar system is used with the addition of shapes, simplifying the identification of snow covered signs (see table below). Slopes marked green, blue or red are groomed in all countries; blacks are groomed in Italy, Austria, Switzerland and Scandinavian resorts, while in France most black slopes are not groomed, but some are. All other classifications are generally not groomed. Sometimes slopes are marked on piste maps as dotted or as dashed lines, this also signifies that the slope is not groomed. 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 it requires better skiing ability because, for example, it is narrower, requires carrying speed through flatter sections or controlling speed through sharp hairpin turns, or features off-camber slope angles or exposed rock. Scandinavia In Norway, Sweden and Finland, a system is used with similar colours as elsewhere in Europe, but with shapes as well. 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. 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 can be misleading. See also Cross-country skiing trail Dry ski slope Night skiing Snow road References Ski areas and resorts Skiing equipment