Response latencies were compared for three-dimensional brake/accelerator placements (depth, height, and lateral separation). Brake pedal depth (distance between brake and accelerator pedal faces in vertical plane) was found to be the only factor significantly affecting movement time. A comparison between Fitts' and Welford's movement time predictions and experimental response latencies resulted in correlations of .549 and .543. Neither movement time equations were able to predict response latencies when the brake pedal was placed 2.54 cm. Behind the vertical plane of the accelerator. Fitts' and Welford's equations seem to have limited use in predicting three-dimensional foot movements. For the covering abstract of the conference see IRRD 268805.
Samenvatting