Table 2. Measurements for a potential feature-set.

Symptoms	Reactions	Measurements
Tremors and involuntary movements of the joystick	Continuous sinusoidal component and sudden motion	•   Position •   Velocity •   Frequency
Attention, tiredness, and general fatigue	Increasingly irregular motion and proximity to obstacles, operational time reduction	•   Position •   Velocity •   Proximity •   Time
Muscular stiffness and weakness	Directional bias and amplitude change of muscular activity	•   Position •   Velocity •   Time
Observational and visual bias	Hesitation and preference when driving in certain directions, proximity to obstacles	•   Position •   Velocity •   Proximity •   Time
Reasoning, confusion, panic, and agitation	Hesitation when driving, directional changes, stop-start, proximity to obstacles, sudden motion, possible nervous tremors	•   Position •   Velocity •   Frequency •   Proximity •   Time