DBGT10K 2020-01 Mixed Viabilita Secondary Plg

This includes “secondary” types of roads, in principle not affected by superstructures and road works, the type of transport that develops there may relate to ordinary means (width between 7 m and 3.5 m and verification of the viability of the route), most often is affected by special means or animal transport or pedestrian and cycle mobility (width of less than 3.5 m or conditions of accidentalness of the territory). The class corresponds to the paths of “carraccia”, “tratturo”, “secondary rotabili”, “paths” etc... Described in the specifications of the Geodetic Commission 1:10,000. Depending on the scale and the minimum map area, the representation will be either an area or a linear one. See: Track as area, path and mule track as collapsed areas本数据集涵盖"次级道路（secondary roads）"类别，此类道路原则上不受大型构筑物与道路施工影响。其通行交通形式可对应普通机动车（道路宽度3.5米至7米，且需验证路线通行可行性），但更多情况下用于特种交通工具、畜力运输，或是步行与骑行通行，对应道路宽度不足3.5米，或区域地形受限的场景。该类别对应"carraccia"、"tratturo"、"secondary rotabili"、"小径"等道路类型，相关描述载于1:10000比例尺大地测量委员会（Geodetic Commission）的规范文件中。根据比例尺与最小制图单元要求，该要素的制图表达可采用面状或线状形式。参见：车道以面状表示，小径与骡道以聚合面状区域表示。