On Fri, Oct 29, 2010 at 9:52 PM, Colin Smale <colin.sm...@xs4all.nl> wrote:
> On 29/10/2010 22:22, thomas van der veen wrote:

> You might like to take note that nothing is implicit in OSM. There are no
> "defaults" as renderers or other consumers of the map data are unconstrained
> as to how they handle missing tags. Ideally all roads should have maxspeed
> explicitly tagged, even if it could be implied from the road class or other
> information.

I disagree quite strongly on this. I see little point in pointlessly
adding tags when they there is a sensible default. For example, we
don't need to tag 98% of roads as "oneway=no", and in the same way we
don't need to tag 98% of UK residential roads as "maxspeed=30mph".

Life's too short for that kind of tedium. That's why we (actually do)
have implicit information in OSM.

Cheers,
Andy

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