Pset_RoadGuardElement Properties assigned to IfcWall/PARAPET or IfcRailing/GUARDRAIL when assigned as road guard elements. IfcRailing/GUARDRAIL IfcWall/PARAPET IfcRailing/GUARDRAIL,IfcWall/PARAPET IsMoveable True if element is moveable. IsTerminal True if element is a terminal. See class Terminal. IsTransition True if element is a transition. See class Transition. TerminalType Specifies the kind of terminal if IsTerminal is true.