| | Specifies the properties of the line of sight at a point of connection between two elements. Typically used to define the line of sight visibility at the junction between two roads (particularly between an access road and a public road). | 
 | Name | PrimaryMeasureType | 
|---|
 | SetbackDistance | IfcPositiveLengthMeasure |  | VisibleAngleLeft | IfcPositivePlaneAngleMeasure |  | VisibleAngleRight | IfcPositivePlaneAngleMeasure |  | RoadVisibleDistanceLeft | IfcPositiveLengthMeasure |  | RoadVisibleDistanceRight | IfcPositiveLengthMeasure | 
 | pset_typedrivenoverride | IfcAnnotation/LineOfSight |