-- Definition -- Speed limit restriction depending on the area. -- Description -- SOURCE [Euroroads].
-- Definition -- Possible service facilities available at a road service area.
-- Definition -- Values to indicate whether a road is paved or not paved.
-- Definition -- Classification based on the physical properties of the road link. -- Description -- SOURCE Based on [Euroroads].
-- Definition -- Indication to which part of a road the value of a measurement applies.
-- Definition -- Values to indicate weather conditions that affect speed limits.