I use highway=footway+crossing=X+crossing_ref=Y on *ways* (as well as placing a wiki-compliant node at the intersection of the crossing way and the road way).
This makes it (relatively) easy to draw a Zebra crossing, correctly orientated along the way. Richard On Sun, Nov 1, 2015 at 10:05 AM, Gerd Petermann < [email protected]> wrote: > Hi all, > > > while trying to clean up wrong highway=* tags in the OSM database > > I noticed a few error patterns. Not sure if I can call it an error when > > other people are using tags in a completely different way, but I think > > I should report them: > > > 1) the tag highway=crossing is/was used for ways, often instead of > > bridge=yes, often at junctions instead of footway=crossing or > cycleway=crossing > > or in addition to them. > > I think it happened in the past, so this seem no longer a problem. > > > 2) Some mappers tag a footway that is crossing the road like this: > > - the way: > > highway=footway > > - the first and last node of the way (both on the sidewalk): > > highway=crossing[,crossing=*][,crossing_ref=*] > > The advantage of this tagging is that e.g. JOSM shows the > > symbol for crossing=traffic_signals at the position where > > one would expect the traffic_signal (and maybe the button) > > > 3) nodes with tags like highway=traffic_signals;crossing or > > highway=crossing;traffic_signals show that it is not very clear > > how to use these tags, I am not even sure if some of the combinations > > that Taginfo shows are valid, e.g. > highway=motorway_junction;traffic_signals > > > The wiki http://wiki.openstreetmap.org/wiki/Tag:highway%3Dtraffic_signals > > explains how to tag junctions with highway=traffic_signals, > > the wiki http://wiki.openstreetmap.org/wiki/Key:crossing > > explains the crossing=* tag. What I am missing is a combination of both. > > Should I tag crossing=traffic_signals at a junction that has one or more > nodes > > with highway=traffic_signals? Or should I use crossing=controlled instead? > > Is a crossing_ref=zebra correct when the junction is controlled by > traffic_signals? > > Should I map highway=stop at a junction with highway=traffic_signals? > > > My understanding is this: > > - For the routers, we like to have the information that the junction is > controlled by > > traffic_signals, as this means a potential delay. For routing, we don't > want to have > > several different nodes with highway=crossing or highway=stop , > highway=traffic_signals > > etc. for a single junction, as it is difficult to sort out which one adds > more delay. > > - For renderers or "completeness" we like to have the position of each > traffic_sign, each traffic_signal > > and each crossing=zebra. > > > If I got that right, a few proposals were made to solve this conflict, > e.g. relations > > or closed ways to collect all elements of one junctions, but none seems to > be > > used often. > > > If anybody thinks that there is a good and correct solution for a complex > junction in OSM, please > > post a link. > > > ciao, > > Gerd > > > > > > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging > >
_______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
