What flagging type is associated with work lasting for more than one hour during a single daylight period?

The correct choice is Intermediate-Term Stationary because it specifically refers to situations where work is expected to last for more than one hour during a single daylight period. This classification is crucial for ensuring that proper traffic control measures are in place for extended operations, helping to maintain safety for both workers and drivers.

In contrast, Long-Term Stationary typically applies to projects that span multiple days or weeks, which is not aligned with the criteria of lasting more than one hour within a single period. Short-Term Stationary is generally used for shorter durations, often under one hour, making it unsuitable for longer projects. Short Duration pertains to very brief operations that usually take only a few minutes and are not relevant when work lasts longer than one hour. Thus, Intermediate-Term Stationary effectively captures the essence of the scenario described in the question.