On the impact of on-road partially-automated driving on drivers’ cognitive workload and attention allocation
研究了30名安大略省驾驶员在手动和部分自动驾驶模式下，认知负荷和视觉注意力的变化，发现部分自动驾驶未改变认知负荷，但减少了驾驶员对前方道路的注视时间，增加了对车载触摸屏的关注，揭示了潜在安全风险。
The use of partially-automated or SAE level-2 vehicles is expected to change the role of the human driver from operator to supervisor, which may have an effect on the driver's workload and visual attention. In this study, 30 Ontario drivers operated a vehicle in manual and partially-automated mode. Cognitive workload was measured by means of the Detection Response Task, and visual attention was measured by means of coding glances on and off the forward roadway. No difference in cognitive workload was found between driving modes. However, drivers spent less time glancing at the forward roadway, and more time glancing at the vehicle's touchscreen. These data add to our knowledge of how vehicle automation affects cognitive workload and attention allocation, and show potential safety risks associated with the adoption of partially-automated driving.