The first of its kind in Canada, the Cooperative Truck Platooning System (CTPS) trials consisted of two or more electronically hitched heavy-duty vehicles that formed a road train. CTPS implemented an automated driving system that provided both steering (lane-centering) and acceleration and braking (adaptive cruise control). This driver-assisted technology provides insights into fuel and operational efficiencies. Data collected through these trials will help evaluate the effects that driver-assisted technologies have on both the lead and following truck drivers. Workload, stress, and passive fatigue are primary factors that were evaluated through these dynamic on-road trails.