Urban unit in the Loiret according to INSEE

The concept of urban unity is based on the continuity of the building and the number of inhabitants. An urban unit is a municipality or group of municipalities with a continuous building area (no cut-off of more than 200 metres between two buildings) with at least 2,000 inhabitants. If the urban unit is located in a single municipality, it is referred to as an isolated city. If the urban unit extends over several municipalities, and each of these municipalities concentrates more than half of its population in the continuous built-up area, it is referred to as a multi-communal agglomeration.城镇连片单元（urban unity）的概念以建筑连续性与居住人口规模为核心判定依据。城镇连片单元（urban unit）指拥有连续建成区域（任意两栋建筑的间距不超过200米）、居住人口不少于2000人的单个市镇或多个市镇组成的集合。若该城镇连片单元仅坐落于单个市镇境内，则称之为孤立城镇（isolated city）；若其跨越多个市镇，且每个相关市镇的半数以上人口均集中于该连续建成区域内，则称之为多市镇集聚群（multi-communal agglomeration）。