What factor may increase pilot workload during flight?

Increased pilot workload during flight is often a result of unexpected changes in flight conditions. Such changes can include sudden weather shifts, mechanical issues, air traffic control directives, or other unforeseen events that require immediate attention and decision-making. These scenarios demand that the pilot quickly assess the situation, communicate effectively, and perform necessary actions to maintain safety and control of the aircraft.

In contrast, improved autopilot features typically reduce pilot workload by automating many flying tasks. High levels of situational awareness enhance a pilot's ability to anticipate and manage changes, thus promoting proactive decision-making rather than reactive responses. Static weather conditions contribute to a stable flight environment, allowing pilots to focus on routine tasks without the burden of sudden demands. Hence, unexpected changes in flight conditions present unique challenges that directly contribute to increased workload.