So tag a short section of the road before and after the bridge with a maxwidth tag. It could differ from the maxwidth of the bridge, but routing software should determine the minimum maxwidth for any section of a route (and avoid or penaliseit accordingly).
On 8 September 2015 at 14:59, John Willis <[email protected]> wrote: > Im talking about how to tag the barrier. That thing was **tight** and very > unusual to find in a major urban area. > > The amount of scars on the poles was amazing. > > The hight restriction barrier (a common thing) is tagged along with > maxheight - this barrier seemed to be the same - if you are over max you > will hit and severely damage your vehecle on the barrier - not the bridge > or overpass or whatever. > > Javbw > > On Sep 8, 2015, at 1:52 PM, Andrew Errington <[email protected]> wrote: > > 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 <[email protected]> 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 >> [email protected] >> https://lists.openstreetmap.org/listinfo/tagging >> >> > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging > > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging > >
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