What is a characteristic of both moving and stationary ALTRVs?

The characteristic that applies to both moving and stationary ALTRVs (Alternate Routes for Traffic Management) is their employment for mass aircraft movements or special missions. ALTRVs are utilized in air traffic management to better manage the flow of air traffic during events that can cause congestion or require the rerouting of aircraft. This includes situations such as natural disasters, mass evacuations, or specific missions that necessitate coordinated movements of multiple aircraft.

Using ALTRVs allows for efficient management of airspace, optimizing routes based on real-time conditions, and addressing the unique needs of large groups of aircraft. This function is critical for ensuring that aircraft can be moved safely and economically while minimizing delays and maintaining safety standards.

The other options relate to specifics that do not capture the essence of what ALTRVs are designed to do. For instance, airport operations may involve local traffic and handling procedures, which are different from the functions of ALTRVs. Standard aircraft routing is a more general concept and does not specifically pertain to the purpose of ALTRVs. Domestic flight rules, while important, are broader regulations that may govern all types of flights, not just those utilizing ALTRVs. Thus, the employment of ALTRVs for mass aircraft movements or special missions distinctly characterizes