risk_of_grounding=yes ? On Aug 10, 2014 5:14 PM, "Colin Smale" <[email protected]> wrote:
> It is neither constructed with the intention of calming traffic, nor is > it intended as any kind of barrier (a bridge is usually exactly the > opposite!) Let us not be afraid of using a different tag for what is > clearly a different attribute. > > --colin > > > On 2014-08-10 17:52, fly wrote: > > Can't we use traffic_calming=hump for this situation or some barrier=*? > > cu fly > > Am 10.08.2014 16:23, schrieb Colin Smale: > > No need to define it as UK-only... such bridges occur across the whole > world, I am sure. The UK may be unique by having a specific road sign, > which may indicate that a bridge could/should be tagged as a humpback (as > stated in the wiki[1 > <http://wiki.openstreetmap.org/wiki/Road_signs_in_the_United_Kingdom>]). > There is also a sign for explicitly indicating a "risk of grounding" often > seen at railway crossings. In the UK it can be made objective by linking > the use of the tag to the presence of the sign, but then we would miss the > many bridges which "the average person" would call a hump bridge but are > not signed as such. I would suggest something like "a bridge requiring > driving speed to be reduced due to the vertical profile" (i.e. not because > it is narrow, or some other attribute). Not sure this depends on who is > driving by the way, the laws of dynamics apply to all of us equally. But I > agree that calculating whether a particular truck can pass a particular > bridge is not easy to put into simple tags. It can be rather complex, which > is why products like [2 <http://www.autopath.co.uk/>] exist. --colin [1] > http://wiki.openstreetmap.org/wiki/Road_signs_in_the_United_Kingdom [2] > http://www.autopath.co.uk/ On 2014-08-10 15:34, Никита wrote: > > I'm fine with this tag being used in UK. But I care about it's definition. > If this tag will be interesting only in some territory, why not to define > this tag specific to UK? You didn't answer how we should define "humpiness" > of bridge?.. Is this you who minority and cannot pass this bridge without > speed reduction or it is me who can drive everywhere at regular speed? This > is really subjective. 2014-08-10 16:47 GMT+04:00 Yves <[email protected] > <mailto:[email protected]>>: There is a lot of things not of interest to > the majority of users in OSM, this is why it is rich. Yves On 10 août 2014 > 12:41:22 UTC+02:00, Colin Smale <[email protected] <mailto: > [email protected]>> wrote: On 2014-08-10 12:13, Никита wrote: I.e > they define this tag as subtype of > http://en.wikipedia.org/wiki/Arch_bridge [5]. I don't see any real > application/use to bridge=humpback. Also, bridge=humpback does not imply > covered=yes by default. It does not define routing aspects or adds any > features to end users. In the UK there are warning signs for some humpback > bridges, and with good reason - if you don't slow down substantially from > the ambient speed you will be launched into orbit. Therefore they should be > useful for routers, implying a lower speed on that part of the road. > https://uk.answers.yahoo.com/question/index?qid=20120222085933AAsnJiP > Some are so "humpy" that a vehicle with a long gap between the axles and/or > a low ground clearance (e.g. a low-loader) may actually be unable to cross > the bridge. So I don't think it is right to say that bridge=humpback cannot > be of value for routing or end users... --colin > ------------------------------------------------------------------------ > Tagging mailing list [email protected] <mailto: > [email protected]> > https://lists.openstreetmap.org/listinfo/tagging -- Envoyé de mon > téléphone Android avec K-9 Mail. Excusez la brièveté. > _______________________________________________ Tagging mailing list > [email protected] <mailto:[email protected]> > https://lists.openstreetmap.org/listinfo/tagging > _______________________________________________ Tagging mailing list > [email protected] <mailto:[email protected]> > https://lists.openstreetmap.org/listinfo/tagging > > _______________________________________________ Tagging mailing list > [email protected] https://lists.openstreetmap.org/listinfo/tagging > > > _______________________________________________ > Tagging mailing > [email protected]https://lists.openstreetmap.org/listinfo/tagging > > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging > >
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