On 10/27/2016 3:04 PM, Martijn van Exel wrote:
My mapping colleagues (not me, I only map in my spare time :)) noted that there are some irregular network tags on highways in Canada. The usual hierarchical notation[1] is in place in many relations, but we encountered deviations from that where instead of the colon separator an underscore is used, so for example instead of CA:ON we see ca_on, and some variations on that.
ca_... has been the long-standing standard. When I last looked at it, the US was the main user of colons. It's possible this has changed, but ca_on_county is still one of the most frequent network tag values (http://taginfo.openstreetmap.org/tags/network=ca_on_county), and there may be consumers who expect this.
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