Which drum marking pattern is considered acceptable?

The option featuring alternating orange and white retroreflective stripes is considered acceptable for drum marking patterns because it aligns with established traffic safety standards and guidelines. The colors orange and white are specifically used in traffic control to enhance visibility and communicate safety measures effectively.

Orange is often associated with construction and maintenance zones, indicating caution, while white provides a high level of contrast and retroreflectivity, which is essential for visibility in various lighting conditions. This combination ensures that the markings are easily discernible by drivers, especially at night or in adverse weather conditions, thereby improving overall safety in work zones.

Furthermore, the use of retroreflective materials is crucial because it allows the markings to reflect headlights from vehicles, making them more visible. This is particularly important in scenarios where quick recognition of traffic control devices, like drums, can prevent accidents and enhance the flow of traffic through work areas.