Pset_SpaceParkingAisleDefinition from IAI: Properties common to the definition of all occurrences of IfcSpace which have an attribute value for ObjectType = 'ParkingAisle'.IfcSpace entity.IfcSpaceIfcSpace.ObjectType="ParkingAisle"IsOneWayIndicates whether the parking aisle is designed for oneway traffic (TRUE) or twoway traffic (FALSE).