Which document minimizes manual coordination between air traffic facilities?

The Letter of Agreement (LOA) is used to codify the procedures and responsibilities between air traffic facilities, thereby minimizing the need for manual coordination. By formalizing these arrangements, LOAs provide clarity and efficiency in air traffic management, enabling facilities to operate smoothly with a clear understanding of their roles and the expectations for each other. This reduces the potential for communication errors and streamlines operations since the agreed-upon procedures are already established and documented.

In contrast, other documents like Standard Operating Procedures (SOP) focus more on the internal processes of a single facility, rather than providing guidelines for interactions between multiple entities. The Flight Management System (FMS) is an onboard software tool aimed at helping pilots manage the flight but does not facilitate direct air traffic control coordination. The Enhanced Traffic Management Plan (ETMP) addresses traffic management strategies but is more concerned with managing specific traffic flows rather than detailing agreements between facilities. Thus, the LOA stands out as the most effective means of reducing the need for manual coordination between different air traffic facilities.