4.7. Mapping rules: Japan
This section contains mapping rules which apply specifically to Japan.
4.7.1. Rules for adding attributes to addresses
The
official name of the address is set as Block No. — House No.
(where the block is the chome division unit), and the name of the Also known as
type can be listed in hieroglyphs.
For example:
- Official: 1—1
- Also known as: 1番1号
4.7.2. Administrative divisions
4.7.2.1
-
Hierarchy levels for administrative divisions:
-
Level 2: Prefecture (analogous to region). Japan is divided into 47 prefectures.
-
level 3:
- Subprefecture (six prefectures are divided into subprefectures).
- District (subprefectures are divided into districts).
Level 3 divisions don't cover the entire country.
-
Level 4:
- City, town, village.
- Special wards of Tokyo and development areas.
Level 4 divisions cover the entire country.
Development areas:
- Are drawn along the borders of the development.
- Have names that can be found in the municipality card.
- Have municipalities as parent divisions.
-
Level 5: City district.
-
Level 6: Historical region, district, block, named intersection.
-
Level 7: Block.
-
4.7.2.2
- Check Municipality for all level 4 items except development areas.
4.7.2.3
- When divided into chomes, the numbers in the local name should be written in Chinese rather than Arabic numerals: 〇 一 二 三 四 五 六 七 八 九 十.
4.7.3. Hydrography
Map gulfs within their geographical boundaries and name them in accordance with the name of their coastal part (-wan
). The geographical name of the gulf and the name of its outer part (nada
) can be added as synonyms.
For example, for Sagami Bay, specify Sagami-wan Bay
as the official name and add Sagami Bay
and Sagami-nada Bay
as synonyms.