On Mon, Sep 7, 2015 at 10:38 PM, johnw <jo...@mac.com> wrote: > I was driving in Chiba and Saitama yesterday and encountered a couple new > types of barriers. I realized later one is traffic_calming=chicane. > > > The other one is all over rural Japan as traffic_calming=choker on rural > roads that could bypass traffic near the rivers, - but this one is not for > traffic calming, it is for enforcement of maxwidth of the bridge, similar > to barrier=hight_restrictor. > . They put very strong steel poles or guardrails along the sides and center > of the road at the maxwidth + 20 cm of a standard car. car can pass > (barely, my mirrors were 5 cm away from each pole), but a large dump truck > cannot pass. Both are in areas where commercial dump trucks or other large > vehicles are nearby, but this one is used to enforce access to the narrow > bridge near a very very busy area to keep a massive traffic jam from > occurring from a stuck dump truck. >
This sounds like a good place to implement enforcement relations <http://wiki.openstreetmap.org/wiki/Relation:enforcement>. type=enforcement enforcement=maxwidth maxwidth=1.9m In this case, it sounds like the "device" and "force" members could very well be the same object.
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