[Talk-us] US Road route relation conventions

[Mike N]

As part of the review and cleanup after the redaction bot, I am planning 
to go through and review state routes and create relations for them.

   There's been much good work in developing the Shields rendering 
scheme, and I would like to prepare when / if it gets rolled out in the US.

    Is there a Wiki page that describes the best current highway tagging 
scheme to document use of route relations and refs to support Mapnik 
with shields and other data consumers?