The Open Data movement in Taiwan is growing fast. In July, after half year of discussions between authorities and communities, the data.gov.tw platform released a new, permissive, CC-BY convertible open data license. It is a game changer for the open data community, and now for the OpenStreetMap Taiwan mappers.
In this week, the National Land Surveying and Mapping Center, or the NLSC, announced open data edition of Taiwan e-Map under new open data license. The zoom level of the open data edition is limited to 1/18000 or z15, but it already contains a lot of data that is not available in any other sources.
Great quality of NLSC maps
And most importantly, the accuracy of NLSC maps is superior. Take a look at it with Strava Heatmap. It is accurate not only for the downtown:
But also for mountain area where accurate orthophoto is hard to achieve:
I beilieve it has < 3m accuracy for most highways in Taiwan. For now, it should be available for tracing.
Celebrate by Tracing!
The community is very happy with that, and now we are working hard on tracing things that is not available before. Take Da-Yeh University for example, both Bing and Mapbox are not working, but now we can trace the place with NLSC data:
And a lot of village streets in Changhua. (In fact, in Changhua, you can only find the ref in maps!)
Go out and map more!
I know that OpenStreetMap is all about “local knowledge”, but the openness of more map sources should give us more opportunity to get a better result in less time.
The cloudy imagery in Changhua made the map progress there slower. It is now finally resolved with Strava Heatmap and NLSC Open Data. Now people can add more POIs without wondering why no roads present here.
Now it is time to go out and map more!
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