OpenStreetMap 開放街圖
This is an example of traffic calming = island, we need only to draw one way and not two with several tag one it.
On this picture (the link below), you can see the lanes (numbers of lanes forward/backward and turn lanes) the result in the software and the mark on the real road (it isn’t a trunk and motorway), so in the middle it’ isn’t a “guard_rail” so we can considered that like a “traffic_calming = island” (the road in the bottom is a bus way and we can’t turn on it probably we can use a relation with “no turn” on it)
http://i.imgur.com/qDHDy6b.png?1
Before changeset: http://imgur.com/d8bPCdY
After changeset http://imgur.com/aM64YF4
討論
由 RobJN 於 2015年02月23日 00時34分 發表的評論
I don’t agree with this change. A traffic island is a very small area, whereas this example is along the entire road. In my opinion it should be mapped as two ways (like it was before).
Also worth noting that the road no longer properly connects at it’s southern end.
由 RobJN 於 2015年02月23日 00時35分 發表的評論
A traffic calming island is something like this : http://www.ritherdon.co.uk/images/pictures/product-images/poletech-products/demountable-traffic-island-new-3-%28page-picture-large%29.jpg
由 Super-Map 於 2015年02月23日 07時04分 發表的評論
I’m sorry but some time a traffic calming is a little bit more broad, in this case, it’s not a trunk or motorway…
由 StephaneP 於 2015年02月23日 09時47分 發表的評論
I agree with RobJN, in this case it’s not a traffic calming because this separator is not here to “calm” the traffic.
由 RobJN 於 2015年02月23日 16時13分 發表的評論
It doesn’t have to be a trunk or a motorway. The point is that there is a strip of land between the lanes and as such you cannot make a u-turn. For reference both Google Maps and Bing Maps show this as two ways (I’m not copying here as that is how we had it in OpenStreetMap until a few days ago). I would recommend a revert, or at least discussing on the mailing lists before making changes like this.