When trial planning a reroute for separation, which approach is required?

• A. plan direct to destination
• B. plan fixes in order flown
• C. can route to an Intersection/waypoint/DME fix; not required
• D. cannot plan reroute

Answer: (B)

When planning a reroute for separation, the path must be defined as a sequence of fixes in the exact order the aircraft will fly them. This creates a clear, step-by-step route that the flight crew can follow and that ATC can monitor, ensuring separation is maintained leg by leg. Defining the route in order flown also helps ensure all required constraints—specific fixes, crossings, and turns—are considered and enforceable throughout the reroute.

Choosing just a direct-to-destination plan skips the intermediate navigation points, which can lead to ambiguity about how the aircraft will actually maneuver and where potential spacing conflicts might occur. Allowing a route to an intersection/waypoint/DME fix without requiring its inclusion leaves the plan less precise and harder to execute safely, since the exact path and sequencing aren’t fully specified. And planning that rerouting isn’t possible isn’t accurate—rerouting is performed to establish a defined path that preserves separation.