Evolution of the urban spot between 1962 and 2015 in the department of Mayenne (053)

The urban spot allows us to understand the evolution of urban sprawl from an analysis of MAJIC data and the Computerised Cadastral Plan. The principle is to allocate a construction date to buildings and to create buffer zones to define areas where construction is contiguous. In this way, we can define urban spots at different times, and evaluate the phenomena of urban expansion.本城市斑块数据集可通过分析MAJIC数据与计算机化地籍图（Computerised Cadastral Plan），实现对城市蔓延演变历程的解析。 该数据集的核心原理为：为建筑物赋予对应建设年代，并通过构建缓冲区以界定建设活动连片分布的区域。 借此可生成不同时间节点下的城市斑块，并对城市扩张现象进行量化评估。