From OpenStreetMap Wiki
| +/- route=road
many ways or a road
- Relations/Routes for another way how to tag routes.
- Relation:route#Route_networks_in_use types of road-networks this route may be a part of
Members of the route-relation may have (among others) the following roles:
Relations taged route=road may have the following tags in addition to the ones described in Relations/Routes:
|TMC:cid_(CID):tabcd_(TABCD):LocationCode||ID-number transmitted in electronic traffic-messages that identifies this road. See TMC_Import_Germany and TMC:LocationCode=* for TMC-locations.|