I don't think a new tag is warranted. maxwidth=* is fairly unequivocal. If map users or routers want to interpret it as "max width, but probably not really, there's probably a bit of extra space, I mean, who's going to be that petty" then that's not your problem.
Since most roads do not have a maxwidth=* restriction it is safe to assume that the road is suitable for any vehicle*, but if you add a maxwidth tag somewhere it is immediately clear it was done purposefully. On 8 September 2015 at 12:38, 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. > > https://goo.gl/maps/8KUw7 The maxwidth is signed and guardrails are > doing the job. This is width limited for the very narrow bridge in the > background. > > https://goo.gl/maps/3NT9X The other direction. Poles are used. > > Is this a reason for creating barrier=width_restrictor ? > > > Javbw > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > >
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