Intermediate Work Activity: Monitor traffic conditions. Monitor traffic conditions. expand all collapse allWork Activity(1)Monitoring Processes, Materials, or SurroundingsOccupations(6)School Bus MonitorsRail Yard Engineers, Dinkey Operators, and HostlersRailroad Brake, Signal, and Switch Operators and Locomotive FirersSubway and Streetcar OperatorsBridge and Lock TendersTraffic Technicians Monitor financial data or activities.Monitor health conditions of humans or animals.