The Ambulance variant assesses ambulance driver risk by considering the stress  of driving for work. Research demonstrates that the following risk factors are most important  for this type of driver and each is measured in the assessment.

Risk Factors for Ambulance Drivers
Situational Risk Factors Behavioural Risk Factors Coping Risk Factors
Age Aggression Emotional Coping
Annual Mileage Anxiety Avoidance Coping
Driving Hours Fatigue Proneness Confrontive Coping
Driving Experience Hazard Monitoring Reappraisal Coping
Licence Status Thrill Seeking  Task Focus Coping
Crash History