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ABSTRACT
This study examined the effects of Chinese font style (Hei, Ming, and Kai) and font color (red, green, and orange) of variable message signs (VMS) on participants' response performance (response time and accuracy) from an ergonomic viewpoint. Computer generated VMS stimuli merged with a driver's view driving video, were projected onto a screen while participants were making proper responses. The results showed Chinese font style and font color both were significant factors on participants' response performance. Participants took less response time for the Hei style than for the Kai and Ming styles, and exhibited higher accuracy for the Hei and Ming styles than for the Kai style. Participants responded faster and more correctly for the orange and green font color than for the red color. Additionally, the interaction of font style and font color also had a significant effect on participants' response performance. Response times for orange and green colors were shorter than for red color on each font style. Participants had the least correct for the Kai style in the red color. The findings of this study may assist in adopting suitable Chinese font and color on VMS and in improving safe and efficient driving for motorists on the freeway.