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Publication Number: FHWA-RD-95-197
Date: December 1996

Development of Human Factors Guidelines for Advanced Traveler Information Systems and Commercial Vehicle Operations: Comparable Systems Analysis


General Description


The driver interface hardware consists of a 12-cm-diagonal color CRT with touchscreen overlay as shown in figure 2 and eight steering wheel buttons as shown in figure 3. The touchscreen provided a 5 x 5 matrix of touchscreen "keys" whose functionality changed with different screens. The touchscreen was only active when the car was in PARK (designated "PRE-DRIVE") or for selected functions when the car was in DRIVE but at zero speed. When the car was moving, only the steering wheel buttons were accessible to the driver. The system also had the capability of providing synthesized voice information to the driver upon request.

TravTek CRT screen


TravTek steering wheel with buttons





United States Department of Transportation - Federal Highway Administration