On Tue, 28 Jul 2009, Dirk-Lüder Kreie wrote: > Liz schrieb: > > To return to the bridge > > the following attributes of the bridge and the road underneath it all > > need to be considered > > Height of bridge > > Height above sea level of the bridge > > Max height of the arch of the bridge above the roadway > > Max height of a vehicle which can drive under the bridge, which if the > > bridge is an arch must be less than the max height of the arch > > Max height of a vehicle which the engineer said was permitted to drive > > under the bridge > > > > so now I have 5 "height" measures > > some of which belong to the road and some to the bridge, and some to > > both. > > > > then we need unambiguous tags to refer to these 5 concepts and > > translations of them all. > > > > :-) > > What about a max height of vehicles passing over the bridge? there are > quite a lot of bridges which have support structures limiting he height > of vehicles passing over it. > how do you distinguish this, and how do you make it clear to every > mapper what is what? I'm happy to admit I've missed a 6th height measure - missing possible scenarios is one of our problems in tagging.
This just came up on the talk_au where this discussion is running in parallel _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
