User:Kcwu import/import twpolice
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Data source 警察局及所屬分駐所派出所資料
The difficulty:
- Data problem
- Some police amenities are at the same coordinate. How to map?
- ex1. 有些分局跟派出所的座標相同
- ex2. 那瑪夏分駐所,民權派出所,民治派出所 同一地點
- I found some data are incorrect. Reported to data.gov.tw
- No primary key, the name is not unique :(
- Some police amenities are at the same coordinate. How to map?
- Conflict with existing data
- semi-police is not listed in the official listing. ex. http://www.openstreetmap.org/browse/node/1553634086 is 太子社區巡守隊.
- Technical problem
- osmsync doesn't support conflation with area
My temporary solution:
- Only import data without above problems
- Don't import if new node is within existing node 50m.
- Don't import if two new nodes are in 50m to each other.
The import changeset http://www.openstreetmap.org/browse/changeset/18956045