What is the risk matrix in the ACP?

• A. A schedule of airfield closures.
• B. A tool for selecting airspace routes.
• C. A tool that delineates acceptable levels of risk for airspace users, prioritizing resource preservation or mission accomplishment.
• D. A set of weather thresholds for operations.

Answer: (C)

The risk matrix in the ACP is a decision framework that defines what levels of risk to airspace users are acceptable and guides how to balance safety with mission success. It translates assessed hazards into risk categories by considering both the likelihood of an event and its potential impact. Those categories then map to actions, from minimal or no additional restrictions to heightened controls or deconfliction measures, so planners can preserve essential resources or still achieve the mission when risks are within acceptable bounds. This approach helps ensure that airspace operations proceed efficiently without exceeding the tolerable level of risk. It’s not about scheduling closures, choosing routes, or defining weather thresholds.