Open Knowledge

National Map 50% open


What data is expected?

This data category requires a high level national map. To satisfy this category, the following minimum criteria must be met:

  • Scale of 1:250,000 (1 cm = 2.5km).
  • Markings of national roads
  • National borders
  • Marking of streams, rivers, lakes, mountains.
  • Updated at least once a year.

What data is available

  •   Openly licensed? No (No URL given)
  •   Is the data available for free? No
  •   Is the data machine readable? Yes (GML)
  •   Available in bulk? Yes
  •   Is the data provided on a timely and up to date basis? Yes
  •   Publicly available? No(as Base Map of Japan published by Geospatial Information Authority of Japan)
  •   Is data in digital form? Yes
  •   Is the data available online? Yes (Here)
  •   Does the data exist? Yes


Data that can be downloaded is an XML document file or JPGIS2.x format, encoded in JPGIS2.x (GML) format. Data is provided timely (last update: 31/07/2015). Users need to register to download data. No terms of use are provided and the FAQ ( also do not mention terms of use.

Basemap data is protected by Survey Law.

Reviewer comments

Users need to register in order to download, and a fee is requiered, thus it is neiter public nor free.



  • Gil Zaretzer


  • Satoshi IIDA