On 2015-10-29 20:45, Joachim wrote : > I invite you to vote on the proposal "Motorway link no default > oneway". The following is proposed: > > Strongly recommend explicit tagging of oneway=* on highway=motorway_link. > > Define that highway=motorway_link without tagged oneway=* has no > implied oneway=yes and also the standard default of oneway=no does not > apply. The oneway=* status of such a way would be undefined. > > * For rendering purposes ways with undefined oneway should be > displayed like the default, i.e. without oneway arrows. > * For routing purposes no recommendation for ways with undefined > oneway is made. A provider should decide on it's own considering the > documentation history and current data. > * In map editors undefined oneway should be displayed as tagging > error. Corresponding tickets will be opened for JOSM/iD/Potlatch. > > > Link: > http://wiki.openstreetmap.org/wiki/Proposed_features/Motorway_link_no_default_oneway#Voting It says: > Strongly recommend explicit tagging of oneway=* on highway=motorway_link. > For routing purposes no recommendation for ways with /undefined > oneway/ is made. A provider should decide on it's own considering the > documentation history and current data. It is totally unacceptable to let a GPS provider "decide on its (not it's) own" (what?) based on fuzzy and vague "documentation history and current data". OSM is the place that *must* contain the data to be used and, should the oneway status be undetermined, routing must obviously be *requested* to not let the cars go through that place. If that undetermined status existed, contributors should not be recommended but requested explicit tagging. And hence, quality assurance providers should be *requested* to check motorway_link statuses and to warn the culprit and not an innocent as Osmose does, and even this Tagging list in such grave security cases.
Please let us not make OSM responsible for car crashes. Cheers André.
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