For my last question, I get the answer in the first email of this thread : "Currently it compares major highways (unclassified and higher) and water features" => tracks are not (yet) compared ! I don't want to focus work where google has buy data, it was more a test for this new tool ...
These are real tracks, but in a private natural reserve, and part of them are flooded several month in a year ... I worked at that place, but there is so much other things to do with more value for the community that I still didn't take the time to map the tracks where almost nobody is autorized to go ... but it's on my todo list ;) cheers, Sylvain 2014-09-23 8:05 GMT+02:00 Simon Poole <si...@poole.ch>: > Aren't these canals/drains/etc and not tracks? > > In any case I would suggest concentrating on OSM and not on what google > has/or not. Most of google data is simply purchased when they feel a > need to do so (for example like in Germany two years ago when they where > so hopelessly behind OSM that they had to do something) and not a good > yardstick for anything. > > Simon > > > Am 22.09.2014 11:02, schrieb Sylvain Maillard: > > Hi, > > > > in France we also have some tools to show/compare with external > > datasets. One of them is regarding the highways > > ( > http://tile.openstreetmap.fr/?zoom=15&lat=45.73849&lon=4.83066&layers=0000000BTFFFFFF > ) > > but I find it way more readable than yours with google data > > ( > http://compare.osm-tools.org/?zoom=15&lat=45.73829&lon=4.82987&layers=BT00 > ) > > ... > > > > perhaps can you add more color/shape to help to categorize the > > differences : absent / not a major / not a minor / ... ? > > > > > > There is also an other place whith something "strange" : OSM is really > > missing a lot of "road"/tracks, google is showing them (not sure about > > the exact classification), but the compare tool didn't show the > > differences ... > > - on google : https://www.google.fr/maps/@43.5091406,4.6686206,18z > > - on osm : http://www.openstreetmap.org/#map=18/43.50847/4.66676 > > - on compare tool : > > > http://compare.osm-tools.org/?zoom=15&lat=43.5091&lon=4.66833&layers=BT00 > > > > > > Sylvain >
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