Semiautonomous and highly autonomous vehicles have the potential to enhance the safety and efficiency of the American transportation system. However, automated driving technologies significantly affect human performance, potentially negating those benefits, and should be designed and tested to address human performance issues before being introduced onto public roads. The human performance issues that automated driving technologies could introduce include loss of driver engagement and low situation awareness,[1-3] poor understanding of and overreliance on automated systems,[4-6] and loss of manual skills needed for performance and decision-making.[7, 8]