6.6.2.1 IfcCourseTypeEnum

6.6.2.1.1 Semantic definition

This container defines the different predefined types of course elements that can further specify an IfcCourse or IfcCourseType.

Type	Description
`ARMOUR`	An Aggregate layer whose primary function is to protect against erosion of the underlying material by water e.g. riprap. NOTE Definition from ISO 21650: protective layer on a breakwater, seawall or other rubble mound structures composed of armour units
`BALLASTBED`	Layer composed of broken stones under the sleepers.
`CORE`	A core course is the bulk internal structure of aggregate structures.
`FILTER`	An Intermediate layer whose primary function is to prevent the washing through of fine materials.
`PAVEMENT`	A layer within a pavement structure that forms a paved area or road.
`PROTECTION`	Layer with the primary task to provide protection against erosion and scour.
`USERDEFINED`	User-defined type
`NOTDEFINED`	Undefined type.

Table 6.6.2.1.A

TYPE IfcCourseTypeEnum = ENUMERATION OF
	(ARMOUR
	,BALLASTBED
	,CORE
	,FILTER
	,PAVEMENT
	,PROTECTION
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;