When taxiway holding positions are not established, where should aircraft wait to enter an active runway?

When taxiway holding positions are not established, the accepted procedure is to have aircraft wait at least 200 feet from the edge of the active runway. This distance provides a safety buffer that helps ensure pilots can clearly see any approaching traffic on the runway while also keeping them at a safe distance away from it. This policy helps to prevent runway incursions, which can occur when an aircraft unexpectedly enters the runway when it is active.

Waiting 200 feet away allows for proper visibility and decision-making space for the pilot. It also ensures that the aircraft is not obstructing the runway or creating a potential hazard for other aircraft taking off or landing. In summary, this distance aligns with best practices in aviation safety, reducing the risk of accidents and enhancing overall airfield operations.