Urban modelling (undated urban stains), in Franche-Comté

Modelling of “undated” urban spots in Franche-Comté. The Urbanisation Dynamics — Urban Taches tool offers a modeling of urbanised spaces over time. Urban spots were generated by the application of the following model: expansion distance of + 50 m around the buildings then erosion of -40 m. The dynamic map depicts urban spots according to the building years. Urban spots have been visualised in 10 years since 1950. Urban spot objects were generated from the buildings of the IGN databases (BDParcellaire and BDTopo). The “year of construction” information of the buildings comes from the DGFiP land database (MAJIC files) as of 1 January 2011. This source is not exhaustive. Buildings whose year of construction is unknown have generated “undated” urban spots (mainly for buildings for agricultural and industrial use). The file “Tache_urbane_NC_R43.TAB” contains GIS data for “undated” urban spots. Please note: the public domain is not listed in the MAJIC database. Population data have been downloaded from the INSEE website.弗朗什-孔泰地区“无年代标注”城市斑块的建模研究。 城市化动态——城市斑块（Urban Taches）工具可对随时间演变的城市空间进行建模。本数据集的城市斑块通过下述模型生成：先以建筑物为中心向外扩展50米范围，随后对缓冲区进行40米的侵蚀操作。 动态地图依据建筑物建造年代对城市斑块进行可视化展示，自1950年起以每10年为间隔进行呈现。 城市斑块对象源自法国国家地理研究院（IGN）的两类数据库：BDParcellaire与BDTopo中的建筑物数据。 建筑物的建造年代信息取自截至2011年1月1日的法国公共财政总局（DGFiP）土地数据库（MAJIC文件），该数据源并非全覆盖。 建造年代未知的建筑物会生成“无年代标注”的城市斑块，这类建筑主要为农业与工业用途。文件"Tache_urbane_NC_R43.TAB"包含了无年代标注城市斑块的GIS地理空间数据。 请注意：公共领域用地未被纳入MAJIC数据库。 人口数据取自法国国家统计与经济研究所（INSEE）官方网站。