Where should a flagger be positioned at all times?

A flagger should be positioned on the shoulder by the fog or edge line to ensure maximum visibility and safety while directing traffic. This location allows the flagger to effectively monitor the flow of vehicles and respond promptly to any changes in traffic conditions. Being close to the edge of the roadway but not in the traffic lane minimizes the risk of getting struck by vehicles while still being able to communicate with drivers clearly.

Positioning on the shoulder provides a buffer between the flagger and moving traffic, enhancing safety for both the flagger and the workers in the area. Additionally, this position allows the flagger to use hand signals and flags effectively, as they can be easily seen by approaching drivers.

The incorrect options suggest placements that could compromise safety or effectiveness in traffic control. Being in the middle of the roadway would expose the flagger to significant danger, while behind traffic cones does not provide a clear line of sight or the ability to adequately signal drivers. Being at the end of the work zone may cause delays in traffic control and limit the flagger's ability to alert oncoming vehicles efficiently.