enum IfcFacilityUsageEnum {
kIfcFacilityUsageEnum_LATERAL,
kIfcFacilityUsageEnum_REGION,
kIfcFacilityUsageEnum_VERTICAL,
kIfcFacilityUsageEnum_LONGITUDINAL,
kIfcFacilityUsageEnum_USERDEFINED,
kIfcFacilityUsageEnum_NOTDEFINED,
kIfcFacilityUsageEnum_unset
};