Intermediate Work Activity: Direct vehicle traffic. Direct vehicle traffic. expand all collapse allWork Activity(1)Handling and Moving ObjectsOccupations(9)Parking Enforcement WorkersPolice and Sheriff's Patrol OfficersCrossing Guards and FlaggersConstruction LaborersPaving, Surfacing, and Tamping Equipment OperatorsHighway Maintenance WorkersAir Traffic ControllersBridge and Lock TendersParking Attendants Fabricate medical devices.Disassemble equipment.