Key:MN metro spoke

This is a new key being used, possibly only temporarily, to help with the road classification process in the U.S. state of Minnesota. The Minnesota highway wiki page will soon be updated to explain the usage of this key. It is anticipated this will only be used in the state of Minnesota, or possibly if deemed helpful, in nearby states or Canada. If so, it would be used on border cities or cities near the border.

The purpose of this key is to tag highways that enter a metropolitan area such as the Twin Cities (greater Minneapolis & St. Paul). This tag is only used near the metro area and acts sort of like a "warning track" that notifies the mapper that the highway currently being edited is about to enter the metro area (where different tagging guidelines might apply).

Currently this key is used only for the Twin Cities area but usage could be expanded to other areas such as the St. Cloud area.

There is one value currently in use:

TC -- this identifies "spokes" that enter the Twin Cities metropolitan area.

This tag is used on ways, not on relations. It is only envisioned to be used near a metro area.

Note that the definition of metropolitan area used here is not based on the common definitions. Refer to the Minnesota highway classification wiki page and the discussions about the classification project in local-minnesota channel of the OpenStreetMap on Slack