text: i think the navmii wording is ``missing speed limit:'' with the intention that the user adds the observed value after the colon.
  
  in cases where no value is provided, the note is meaningless as a database query could return the same info (if missing rather than wrong), and adds nothing to osm.
  
  i should approach the multitudes of open navmii speedlimit notes without a supplied value with that in mind...