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]). 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] 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 <yve...@gmail.com >> <mailto:yve...@gmail.com>>: >> >> 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 >> <colin.sm...@xs4all.nl <mailto:colin.sm...@xs4all.nl>> 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 >> Tagging@openstreetmap.org <mailto:Tagging@openstreetmap.org> >> https://lists.openstreetmap.org/listinfo/tagging >> >> >> -- >> Envoyé de mon téléphone Android avec K-9 Mail. Excusez la brièveté. >> >> _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org <mailto:Tagging@openstreetmap.org> >> https://lists.openstreetmap.org/listinfo/tagging >> >> >> _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org <mailto:Tagging@openstreetmap.org> >> https://lists.openstreetmap.org/listinfo/tagging > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
