On 07/29/2015 07:11 AM, moltonel 3x Combo wrote:
Routers can already use 'prefer primary to secondary' worldwide. Nowhere in the OSM world is secondary defined as better than primary. In any given area. a car router can confidently prefer 'primary'.
Based on what John Willis has said about tagging in Japan, I don't think this is true.
From what I understand from his previous posts to this and other OSM mailing lists, the OSM tagging in Japan follows the official classification, and often results in small windy roads through cities that are historically important being marked as primary, while modern bypass roads are marked as secondary or even lower.
I think that this breaks a router's idea that primary is "better" than secondary, and I think that this problem is exactly why people advocate for not following official classification.
--Andrew _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
