public static int wayzorder(Map<String, Object> tags) {
    return Imposm3Parsers.wayzorder(tags);
  }
Returns {@code tag} for an OSM road based on the tags that are present. Bridges are above roads appear above
tunnels and major roads appear above minor.
planetiler-core/src/main/java/com/onthegomap/planetiler/util/Parse.java