What is a risk associated with displaced thresholds at airports?

Displaced thresholds at airports can lead to an increased risk of aircraft accidents primarily due to alterations in the operational dynamics of takeoff and landing procedures. When a threshold is displaced, it effectively changes the point where aircraft must touch down on the runway, which may require pilots to adjust their approach angles and landing techniques. This adjustment can lead to miscalculations or misunderstandings about runway length and available safe landing areas, particularly under challenging weather conditions.

Furthermore, a displaced threshold can impact the safety margins that pilots rely on when executing approaches. Pilots must contend with potential obstructions or terrain at the beginning of the runway, which may not be immediately apparent, increasing the likelihood of incidents. The overall operational complexity increases, which can lead to reduced situational awareness.

While the other options present valid points of airport operational concerns, they do not directly correlate with the immediate safety implications created by the displacement of thresholds. Adjustments to fees, taxi times, or hangar space may influence airport operations fundamentally, but they do not inherently increase the risk of accidents in the same direct manner as a displacement of centralized landing operations does.