[OSM-talk] [Tagging] - RFC - Motorway_linkimpliesoneway=??

[Philip Homburg]

>For trunk roads, it might be just a safe default to assume that the way is
>oneway, unless tagged explicitly as single-carriage (oneway=no). 

Another safe option is for routing application to ignore all motorway,
motorway_link, trunk, and trunk_link ways that are not explicitly tagged as
either oneway=yes or oneway=no.

Then the JOSM/Validator can show missing oneway tags as errors.