[Tagging] Default values for surface by road category and country

Richard Fairhurst richard at systemed.net
Sat Sep 21 15:09:23 UTC 2019

voschix wrote:
> I am trying to figure out where the surface default values by road 
> category and country are defined.

I don't believe there's a place where it's stated, but I work on these

- highway=track/bridleway is always unpaved unless stated otherwise
- highway=footway/path may be unpaved unless stated otherwise
- in developed countries, all "higher" highway types can be assumed paved
- in developing countries, anything from secondary down (or even primary)
may be unpaved
- in rural areas of the US, it's not safe to assume highway=residential is
paved if tiger:reviewed=no


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