Shapefile of railways in Europe between 1960 and 1980

Shapefile of railways in Europe between 1960 and 1980 based on historical cartography of different libraries. Shapefiles each 20 years because of the impossibility of finding historical cartography every year.本数据集包含基于不同图书馆历史制图资料制作的1960年至1980年欧洲铁路形状文件（Shapefile）。因无法逐年获取历史制图资料，故按每20年的时间跨度生成相应的Shapefile。