On Sat, 1 Feb 2014, Masi Master wrote: > Am 01.02.2014, 10:05 Uhr, schrieb Pee Wee <piewi...@gmail.com>: > > > 1 Cut the way where the sign is and use a relation type : > > restriction<http://wiki.openstreetmap.org/wiki/Relation:restriction>. > > > > 2 Add a node on the way where the sign is and add a motorcar:backward=no to > > this node. (similar to > > traffic_sign:forward<http://wiki.openstreetmap.org/wiki/Traffic_sign#As_part_of_a_way>on > > a node that is part of a way) > > > > 3 Cut the way where the sign is into a tiny piece of way. Add a > > motorcar:backward =no to this tiny piece of way. > > Normally traffic signs belongs to the road to the next intersection/crossing. > Let's look how we tag maxspeed: From the sign to the next > sign/intersection/crossing "the whole way". So if you come from a > residential-driveway or by a u-turn, you can't see the maxspeed limit and you > can't drive conform to it. So should we tag the maxspeed also at a very short > section? (Router and other software has to must expand the maxspeed to the > next intersection.) > > I suggest it is better to add No. 3: motorcar:backward=no > The sign is there by a reason, and motorcars should not go to this > road/direction. So OSM-data can give a person/software a bit of "more > information" to show that the road/direction is "not allowed" (even but from > beginning).
Which is "oneway" but for some reason it wasnt't marked as such. If there's a true oneway street with proper signage, it's actually obvious from both ends (just consider the signs specific to oneway case) so you "cannot miss it and u-turn". This non-oneway case is no different from =destination or a turn restriction in which only a particular route is forbidden, not the actual traffic on the road. Are there some real world examples where a maxspeed for opposing direction is really different? (Signage bugs don't count or short sections that occur due to sign placement). -- i. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
