Hi Xavier, "no" is the "default" value of the oneway tag as it's the most correct assumption. First as in general most roads are not oneway roads (considering any road inside and outside of cities), and second as the other case around would be even worse: If "yes, this is a oneway street" would be assumed, you still wouldn't know which direction the traffic is allowed. You may add oneway=no to streets where you know they are not oneway, but you have to define the oneway tag to define the traffic direction, else there's still missing data on oneways.
But as the base assumption of all applications I'm aware of is that streets is oneway=no, this is usually not necessary. If in some areas, where most highways are oneways, this leads to the default being less used than the "non-default", this isn't bad either as the oneway tag is necessary to get complete information. regards Peter Am 28.08.2014 um 14:20 schrieb Xavier Noria: > Hi, > > The default value for "oneway" is "no" for most types of roads. That > is, if the attribute has no value set, "no" is assumed. Which is the > rationale for that default? > > In the European cities and towns I know the majority of streets are > one-way. For example Barcelona, or Madrid, or Paris. In such areas, > are contributors expected to annotate "no"s rather than leaving the > tag blank? > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
