["Human Factors and Ergonomics in Manufacturing &Service Industries, Volume 36, Issue 4, July 2026. ", "\nABSTRACT\nPilot‐controlled traction‐taxi driving safety systems have the potential to enhance airport ground safety while mitigating traffic emissions. Ensuring the system's availability, safety, and suitability requires an acceptable workload when pilots use the electronic flight bag system. This study examined workload‐related changes across two driving modes (Cancel Cruise Control and Cruise Control) and three maximum speeds (30, 40, and 50 km/h) in a simulator‐based towing‐taxi task. Physiological indices (heart rate, heart rate variability, electrodermal activity, and pupil diameter) and NASA‐TLX ratings were collected from 20 final‐year cadet pilots. Compared with Cancel Cruise Control, Cruise Control was associated with lower mean pupil diameter and higher standard deviation of normal‐to‐normal intervals and percentage of adjacent normal‐to‐normal intervals differing by more than 20 ms, whereas directional differences in heart rate, skin conductance level, and skin conductance response were not consistently significant. Across speed conditions, several physiological indices suggested a lower workload at 40 km/h than at 30 or 50 km/h. National Aeronautics and Space Administration Task Load Index ratings showed a similar descriptive pattern. These findings suggest that both automation mode and maximum towing speed were associated with workload‐related changes in this simulator task and may inform the design of in‐cabin electronic flight bag‐assisted towing‐taxi operations.\n"]