[Talk-GB] Speed limits
richard at systemeD.net
Thu Sep 20 11:37:52 BST 2007
Andy Robinson wrote:
> Map features originally assumed everything would be in SI units to give some
> level of standardisation, but as time has gone on its clear that's not the
> best way for users to make the most of it. So even an assumed default of
> metric is not ideal when the units are missing. Much better perhaps to
> understand where the feature is and be clever at interpreting what the value
One of the lovely, but hard-to-pin-down, things about OSM is that tags
are usually interpreted in context. So "highway=trunk" famously means
something different here than in France.
I suspect if we took this across to talk@, then the rest of the world
would be outraged that they had to start tagging things as "40kph"
rather than "40" simply because the British persist with such an
antiquated measurement system. But yes, in the UK I think adding
explicit units is the way forward.
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