Mapping BTA 1:5,000 (reference year 2020). Kilometre point of the road network

Layer of the BTA (reference year 2020) containing the kilometric points of the road network of the Official Catalogue of Roads of Navarra at 1:5,000 scale. The BTA is an adaptation to the production of the National Cartographic Base (BCN) of the National Geographical Institute (IGN). BTA is the acronym for “Harmonised Topographical Base”. It is a data model agreed by the Autonomous Communities (CCAA) and approved by the Higher Geographical Council (CSG) of which there is a version v1 dated 2008.本图层为基准年2020年的BTA图层，包含纳瓦拉自治区官方道路名录中比例尺1:5000的道路网千米桩点。BTA为“统一地形基准（Harmonised Topographical Base）”的缩写，是适配西班牙国家地理研究所（IGN）国家制图基准（BCN）生产规范的成果。该数据模型由西班牙各自治区（CCAA）共同商定，并经西班牙最高地理委员会（CSG）批准，其首个版本v1发布于2008年。