What is the importance of maintaining a buffer zone during roadway work?

Maintaining a buffer zone during roadway work is crucial as it provides an additional layer of safety between workers and rail traffic. This safety measure helps to reduce the risk of accidents or injuries caused by moving trains or vehicles in proximity to work areas. A buffer zone creates a physical space that enhances the visibility of both workers and oncoming trains, allowing for a safer environment.

While separating workers from ongoing operations is important, the specific emphasis on the buffer zone highlights its role in protecting against rail traffic specifically. The buffer zone is not primarily designed for moving heavy machinery or for storing excess materials; these activities are handled in different ways to ensure they do not compromise the safety and effectiveness of the work being done. Thus, the correct answer underscores the primary purpose of a buffer zone in protecting workers in the dynamic environment of roadway operations.