Territory: localisation of Census Sections

The reusable database contains the vector geographical representation of the 2011 census sections * 1) The Census Section defines the minimum detection unit of the City of Milan on the basis of which the census survey is organised, relating to the 15th General Census of Population and Housing. It consists of a single body bounded by a closed broken line; from the census sections can be reconstructed, by sum, the geographical and administrative entities of higher level (Census Areas – ACE, inhabited localities, sub-municipal areas, constituencies and others). Each census section must be completely contained within one and only one location. The municipal territory must be exhaustively divided into census sections. The TYPO_LOC field identifies the type of location 2011 and can take on the following values: 1. town centre: aggregate of adjacent or neighbouring houses with interposed streets, squares and the like, or in any case short continuity solutions characterised by the existence of services or public establishments (school, public office, pharmacy, shop or the like) which constitute an autonomous form of social life and, generally, also a place of gathering for the inhabitants of neighboring areas in such a way as to manifest the existence of a form of social life coordinated by the centre itself. * 2) inhabited core: inhabited town, without the place of collection that characterises the town, consisting of a group of at least fifteen adjacent and neighboring buildings, with at least fifteen families, with interposed roads, paths, squares, aies, small gardens, small uncultivated and similar, provided that the interval between house and house does not exceed thirty meters and is in any way lower than that between the nucleus itself and the nearest of the houses manifestly scattered. * 3) Production Location: extra-urban area not included in centres or inhabited areas where there are local units of more than 10, or whose total number of employees is more than 200, contiguous or neighboring with interposed streets, squares and the like, or in any case short continuity solutions not exceeding 200 metres; the minimum area shall be 5 hectares. * 4) sparse houses: houses scattered in the municipal territory at a distance so that it could not even constitute a inhabited nucleus. The following are also reported: the codes of Census Areas – ACE to which they belong; the resident population as at 31.12.2010. The downloadable csv resource contains columns of georeferenced points, which correspond to the centeroid of the geometry used in the relevant GeoJSON resource.本可复用数据库包含2011年人口普查分区的矢量地理表征。 1) 人口普查分区是米兰市开展普查调查的最小统计单元，对应第15次全国人口与住房普查。该单元为单一闭合折线包围的地理实体；通过累加普查分区，可重构更高层级的地理与行政单元（普查区域——ACE（Census Areas – ACE）、聚居地、次级市政区域、选区及其他同类单元）。每个普查分区必须完全隶属于且仅隶属于一个地理点位，且市政辖区需被完整划分为若干普查分区。字段TYPO_LOC用于标识2011年的地理点位类型，可取以下值： 1. 城镇中心：由相邻或毗邻建筑及其间街道、广场等空间构成的集合，或存在服务设施或公共机构（学校、公共办公场所、药房、商铺等）的短连续性区域，这类区域具备自主社会生活形态，通常也是周边区域居民的聚集场所，体现出以该中心为核心的协调社会生活模式。 2. 聚居核心：指具备聚居形态的城镇区域，不具备城镇中心的集散功能，由至少15栋相邻毗邻建筑组成，包含至少15个家庭，其间有道路、小径、广场、空地、小型花园、未开垦小块土地等分隔空间，且建筑间距不超过30米，同时该核心与周边零散住宅的间距大于建筑内部间距。 3. 生产型点位：指未纳入城镇中心或聚居区域的城外区域，存在雇员数超过10人的生产经营单元，或总雇员数超过200人的经营单元，该区域由相邻或毗邻的建筑及其间街道、广场等空间构成，或存在不超过200米的短连续性分隔空间，最小占地面积为5公顷。 4. 零散住宅：指散布于市政辖区内、间距不足以形成聚居核心的住宅。 本数据集同时附带以下信息：所属普查区域——ACE的编码；截至2010年12月31日的常住人口数据。 可下载的CSV资源包含地理参考点列，这些点对应相关GeoJSON资源中所使用几何图形的质心。