[HOT] Thank you from MSF!

Jean-Marc Liotier jm at liotier.org
Sun Apr 7 17:18:53 UTC 2019


On 4/7/19 6:59 PM, Kevin McPherson via HOT wrote:
> road network classification in OSM is never quite the same as that 
> used by the Roads Agency, and there are discrepancies between the 
> "official" data of the roads agency, and the OSM definition. This 
> causes confusion to anyone who wants accurate mapping. [..]

Though Openstreetmap strives for global definitions, local variations 
also exist. For example, in French Openstreetmap "trunk" must be a 
dual-carriage way - that rule does not exist in the rest of the 
Openstreetmap world. But divergence carries the cost of increased 
complexity - tread lightly there: not all Openstreetmap communities have 
sufficient power to deal with it.

The ref=* tag might help you: the national highway numbering schemes 
reflect the national classification - so it might be a good source of 
"official" truth to carry the national road agency's vision regardless 
of what the way actually is.

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