Population density per ha – Flanders – State 2013

This map indicator gives an estimate of the number of inhabitants per hectare corrected by statistical sector. The population dataset describes the location and the number of inhabitants per address using a point file. This file is created by Informatie Vlaanderen (AIV) from data from the Rijksregister. The locations of the addresses are determined by geocoding of the addresses based on crab (crab population numbers version 0.1). The total number of inhabitants in Flanders according to this point file is slightly underestimated compared to the actual number of inhabitants in Flanders as reported by the FPS Economy. This shortfall can be explained by the fact that it was not possible to fully link the addresses from the Rijksregister to crab (missing or unknown addresses in crab). For this difference, the dataset is adjusted at the level of the statistical sectors based on the statistics on the number of inhabitants per statistical sector of Statbel. For this purpose, the sum of the number of inhabitants based on the population per adrespunt per sector is first taken. The factor of this sum is then calculated in relation to the number of inhabitants reported by Statbel. This factor is then applied to all population points. For example, if in a given sector a population reduction of 5 % is calculated on the basis of the number of points with inhabitants per adrespunt relative to statistics, the number of inhabitants is increased by 5 % at each point location. This corrected points file is then rescaled to a resolution of 1 ha by adding, for each hectare unit, the sum of the corrected number of inhabitants per address. This geodata layer was replaced in 2021 by a revised version for Condition 2013, in order to remain in line with the updated method used in condition 2019. For more details on the production of this product and the corresponding figures, please refer now to the technical report “Indicators Spatial Efficiency, State and Evolution 2013-2019 – Technical fiches” which you can find at https://archief-algemeen.omgeving.vlaanderen.be/xmlui/handle/acd/762878本地图指标提供了经统计分区校正后的每公顷居民数量估算值。本人口数据集采用点文件格式，记录了每个地址的位置与对应居民人数。该文件由弗拉芒地区信息局（Informatie Vlaanderen, AIV）基于比利时国家登记册（Rijksregister）的数据生成。地址位置通过基于CRAB（crab population numbers version 0.1）的地址地理编码流程确定。相较于比利时联邦经济与中小企业公共服务署（FPS Economy）公布的弗拉芒大区实际居民总数，本点文件统计的居民总数略低于真实值。这一统计偏差可归因于：无法将国家登记册中的所有地址完全匹配至CRAB系统（CRAB中存在缺失或未知地址）。针对这一偏差，本数据集基于比利时统计局（Statbel）发布的各统计分区居民人数统计数据，在统计分区层面进行校正。为此，首先计算每个分区内基于各地址点的居民人数总和。随后计算该总和与比利时统计局公布的对应分区居民人数的校正系数。随后将该校正系数应用至所有人口点数据。例如：若某分区基于地址点居民人数的统计结果与官方数据相比存在5%的缺口，则该分区内每个地址点对应的居民人数均上调5%。随后将校正后的点文件重采样至1公顷分辨率：对每个公顷单元，累加该单元内所有校正后的地址点居民人数总和。为契合2019版要求所采用的更新方法，本地理数据图层于2021年被适配2013版要求的修订版本替代。如需了解本产品生成流程及对应数据的更多细节，请参阅技术报告《2013-2019年空间效率、现状与演进指标——技术细则》（"Indicators Spatial Efficiency, State and Evolution 2013-2019 – Technical fiches"），获取链接：https://archief-algemeen.omgeving.vlaanderen.be/xmlui/handle/acd/762878