LSOA (2011) to LSOA (2021) to Local Authority District (2022) Exact Fit Lookup for EW (V3)
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<span style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; color:rgb(0, 0, 0); font-size:17px;'>This is an exact fit lookup file between Lower layer Super Output Areas as at December 2011 and Lower layer Super Output Areas as at December 2021 and Local Authority Districts as at December 2022 in England and Wales. This product has been provided with a 'change indicator' field, that define the lookup between 2011 and 2021 LSOA. This field indicates which super output areas have changed between 2011 and 2021. </span><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><font color='#000000' style='font-family:inherit;'><span style='font-family:inherit; font-size:17px;'><br /></span></font></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><font color='#000000' style='font-family:inherit;'><span style='font-family:inherit; font-size:17px;'>This is a version 3 of the lookup where the Change Indicator has been changed from splits to complex in less than 10 LSOAs and four 2011 LSOAs - Shepway 014E to Shepway 014H corrected to Shepway 015A - Shepway 015D<br /></span></font><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'><br /></span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'>There are four designated categories to describe the changes, and these are as follows:</span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'>U - No Change from 2011 to 2021. This means that direct comparisons can be made between these 2011 and 2021 LSOA.</span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'>S - Split. This means that the 2011 LSOA has been split into two or more 2021 LSOA. There will be one record for each of the 2021 LSOA that the 2011 LSOA has been split into. This means direct comparisons can be made between estimates for the single 2011 LSOA and the estimates from the aggregated 2021 LSOA.</span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'>M - Merged. 2011 LSOA have been merged with another one or more 2011 LSOA to form a single 2021 LSOA. This means direct comparisons can be made between the aggregated 2011 LSOAs’ estimates and the single 2021 LSOA’s estimates. </span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'>X - The relationship between 2011 and 2021 LSOA is irregular and fragmented. This has occurred where 2011 LSOA have been redesigned because of local authority district boundary changes, or to improve their social homogeneity. These can’t be easily mapped to equivalent 2021 LSOA like the regular splits (S) and merges (M), and therefore like for like comparisons of estimates for 2011 LSOA and 2021 LSOA are not possible. </span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'><br /></span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'>Field Names – LSOA11CD, LSOA11NM, CHGIND, LSOA21CD, LSOA21NM, LAD22CD, LAD22NM, LAD22NMW</span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'>Field Types – Text, Text, Text, Text, Text, Text, Text, Text</span></div><div style='font-family:inherit;'><span style='font-family:inherit; color:rgb(0, 0, 0); font-size:17px;'>Field Lengths – 9, 33, 1, 9, 40, 9, 35, 24</span></div></div>
本文件为英格兰及威尔士地区，2011年12月时点低层级超级输出区域（Lower layer Super Output Areas, LSOA）、2021年12月时点低层级超级输出区域，与2022年12月时点地方当局辖区（Local Authority Districts, LAD）之间的精准匹配对照表文件。本产品附带变化标识（change indicator）字段，用于界定2011年与2021年LSOA之间的匹配关系，该字段可指明哪些超级输出区域在2011至2021年间发生了变更。 本对照表为第3版，针对不到10个LSOA的变化标识进行了更新，将其从“拆分”类型调整为“复杂”类型；同时修正了4个2011年LSOA：原Shepway 014E至Shepway 014H，已调整为Shepway 015A至Shepway 015D。 本次更新设置了四类变更分类，具体说明如下： U：2011至2021年无变更。此类LSOA可直接进行2011年与2021年时点的数据比对。 S：拆分。即2011年LSOA被拆分为2个及以上2021年LSOA，每个拆分得到的2021年LSOA均对应一条记录。此时可将2011年单LSOA的估算值，与聚合后的2021年LSOA估算值进行直接比对。 M：合并。即2011年的一个或多个LSOA合并为单个2021年LSOA，此时可将聚合后的2011年LSOA估算值，与2021年单LSOA的估算值进行直接比对。 X：不规则碎片化关联。此类变更源于地方当局辖区边界调整，或为提升社会同质性而对2011年LSOA进行重新规划，无法像常规拆分（S）、合并（M）那样直接映射至对应2021年LSOA，因此无法实现2011年与2021年LSOA估算值的点对点比对。 字段名称依次为：LSOA11CD、LSOA11NM、CHGIND、LSOA21CD、LSOA21NM、LAD22CD、LAD22NM、LAD22NMW 字段类型均为：文本（Text） 字段长度依次为：9、33、1、9、40、9、35、24
