[Tagging] Named junctions

[johnw]

> On Nov 8, 2015, at 7:17 PM, tomoya muramoto <muramototomoya at gmail.com> wrote:
> 
> As for me, signals rendering seems not to be a big problem

I was looking around at the other maps, and the one I really like the look of is Mapion. 

http://www.mapion.co.jp/m2/36.396593778361435,140.5346977118126,15 <http://www.mapion.co.jp/m2/36.396593778361435,140.5346977118126,15>

Mapion completely changes it’s rendering colors as you zoom in, and the signal icons are clear, but a bit later than I remember. 

Google Maps is actually two different sets of data: Google’s and a Japanese GIS company, Zenrin. They have basically surveyed all of Japan building by building, and everything is drawn area based (because the roads in Japan can be such weird shapes and always change width suddenly). 

Google uses their detailed base map for all higher zooms in Japan (in places with people actually living there).  This switch to Zenrin’s data happened 5-7 years ago (I think) - Google Maps was always much better in Japan than the US because of this use of a third party data company with an insanely complete hand drawn map (the survey people walk neighborhoods once a year with a clipboard and draw changes). 

You can see the switch between the Google data and the Zenrin data between these two links. 

https://www.google.co.jp/maps/@36.4025147,140.5836863,16.93z <https://www.google.co.jp/maps/@36.4025147,140.5836863,16.93z> End of google data (z16)

https://www.google.co.jp/maps/@36.4025454,140.5838747,17.02z <https://www.google.co.jp/maps/@36.4025454,140.5838747,17.02z> Start of Zenrin street survey (z17) 

This level of detail is something google has been working to catch up with in the rest of their maps. But since Zenrin keeps improving the basemap and location database, it is still the best at high zoom. 

Signal icons are displayed in Google’s Z16 in Japan. 

Google has yet to display signals in San Diego.  (z 17) 
https://www.google.co.jp/maps/@32.7199724,-117.1657039,17.01z <https://www.google.co.jp/maps/@32.7199724,-117.1657039,17.01z> 

Of the stop light infront of the Googleplex.
https://www.google.co.jp/maps/@37.4219383,-122.0850782,17.86z <https://www.google.co.jp/maps/@37.4219383,-122.0850782,17.86z>

This “necessity” to show signals is common among Japanese maps and properly localized maps. I want OSM to be just as good. 

Properly showing one icon per signal is my goal, and these other mapping software illustrate what I eventually expect to see (signal wise) in OSM. 

Javbw


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