Which of the following is considered acceptable for work zone signage placement?

The correct choice is related to the appropriate placement height for work zone signage, which is crucial for visibility and safety. Signs placed at least 4 feet above the roadway ensure that they are easily seen by drivers, minimizing the chances of obstruction by vehicles or roadside objects. This height is often consistent with guidelines provided by traffic control device standards, which prioritize safety and clarity for motorists navigating through work zones.

Proper sign placement is essential because it helps in conveying important information about the work zone in a clear and timely manner, enabling drivers to react appropriately to changes in roadway conditions. Maintaining a minimum height above the roadway also helps ensure that signs are visible from a distance, giving drivers adequate time to prepare for any necessary actions, such as slowing down or changing lanes. The focus on visibility aligns with best practices in traffic management, emphasizing the need for clear communication in work zones.