The purpose of this SAE Recommended Practice is to present design recommendations for the direction-of-motion of hand controls found in passenger vehicles, multipurpose vehicles, and trucks. These recommendations are based on recent and past human factors research and are important considerations in the design of control layouts.
This revision adds a recommended direction of motion for rotation of stalks mounted on the right side of the steering column, based on data provided by Japan. Unique motion stereotypes for Japan were noted in the figures. Direction-ofmotion conventions were added for door-mounted power door lock controls, which are illustrated in a new Figure 6. Also, one subfigure in Figure 4 was redrawn for improved clarity.