OptionalboundingWGS84 [minLongitude, minLatitude, maxLongitude, maxLatitude].
OptionalcountyOptionalmunicipalityOptionalpageOptionalroadNVDB road-system reference, for example EV6S1D1.
OptionalstartOpaque continuation marker returned by the preceding response.
Numeric road-object type ID from the NVDB data catalogue.
Filters accepted by an NVDB road-object search.