When making route assignments, what should be consistent with the altitude stratum being used?

The focus on airways and routes in relation to the altitude stratum is critical because these elements are designed to correspond with specific flight levels that comply with air traffic control regulations and ensure safe vertical separation among aircraft. Each altitude stratum is defined to allow for orderly flow and separation of traffic within designated airspace.

When a flight plan is prepared, the assigned airways and routes must align with the altitude categories; for instance, certain airways may be designated for use at specific altitudes or elevation ranges. This consistency is vital not only for ensuring safety and compliance but also for facilitating effective air traffic management.

While flight planning details, weather conditions, and departure procedures are all important considerations in flight operations, they do not necessarily dictate the alignment of routes with altitude strata. Weather conditions can vary and may affect flight paths but do not tie directly to the altitude stratum itself. Departure procedures are also subject to specific guidelines, but they are not inherently connected to the altitude strata in the same direct manner as airways and routes.