GB: no Greater London layer; London locality parented under Westminster
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评估
- 难度
- 5/5
- 预计耗时
- 一周以上
- 新手友好度
- 35/100
- Issue 类型
- 缺陷
- 描述清晰度
- 基本清楚
- 活跃度
- 活跃
- 领域
- data
调研方向
先查看指南中关于 macrocounty 和 macroregion 的注记，然后检查 release 2026-08-19.0 中的 GB 记录以及 OSM 关系 175342 和 65606。完成的标准是 Greater London 具有一个多边形并包含其 boroughs，同时 locality London 具有合适的 parent 和多边形，且不嵌套在 Westminster 之下。
由索引模型根据 Issue 内容生成。
描述
In Great Britain, Overture’s admin tree is only country → home nation → county. There is no Greater London (and no other English metro wrappers like Greater Manchester or the West Midlands). London boroughs are typed as counties hanging directly off England.
The locality named London is a separate place record: OSM’s place=city node at Charing Cross (n107775). Overture parents that locality under Westminster, because the point sits inside the City of Westminster. That same row is tagged as capital of England and of the United Kingdom, with a population of about 8.9 million — so it is clearly meant to be the capital city, not a neighbourhood of Westminster. It has no division_area polygon and nothing is parented under it.
Checked on release 2026-08-19.0:
- GB has 1 country, 4 regions (the home nations), 216 counties, and zero
macroregion/macrocounty. - No division named Greater London.
- London locality
316096ba-fc3f-40a9-9991-5a70f28dddab→ parent Westminster county35097f38-1580-48a2-9e35-3b1b007b1aef. - Boroughs such as Croydon, Camden, Hackney, and the City of London parent to England, not to London.
OSM does have the missing layer at admin_level=5:
- GLA (includes the City of London): https://www.openstreetmap.org/relation/175342
- Ceremonial Greater London (excludes the City): https://www.openstreetmap.org/relation/65606
That is the slot Overture’s docs describe as macrocounty (“a bundle of counties”). The guide already notes that macrocounty / macroregion should be present but are currently miscategorized.
What we’d expect
- A Greater London division (likely
macrocounty) from the GLA boundary, with a polygon. - London boroughs and the City of London parented under that, then England.
- The capital locality “London” not sitting under Westminster — Greater London or England as parent, and a polygon so it is not point-only.
This is awkward for search: people mean Greater London when they pick “London”, but that locality does not contain the boroughs, and its breadcrumb reads Westminster → England.
Same shape of problem as the Berlin city node under Mitte (#441), Kowloon under a district (#442), major cities missing division_area (#235), and subtype=borough never being used (#443).
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- 阅读贡献指南
从这里开始
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- Fork 仓库，在一个分支上完成修改。
- 提交 Pull Request，并在描述里引用这个 Issue 编号。
OvertureMaps/data 的其他 Issue
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external
难度 2/5 1-3 小时 新手友好度 68/100
OvertureMaps/data#584 ·
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难度 2/5 1-3 小时 新手友好度 70/100
OvertureMaps/data#509 ·
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难度 4/5 3-5 天 新手友好度 49/100
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难度 4/5 3-5 天 新手友好度 22/100
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难度 5/5 一周以上 新手友好度 35/100
OvertureMaps/data#581 ·
查看 OvertureMaps/data 的全部 Issue
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