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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

This report is an archived publication and may contain dated technical, contact, and link information
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


System Temporal Requirements


TravTek has a number of temporal requirements associated with its user interface. These include the timing of visual and aural cues while navigating, the prevention of auditory messages that are no longer current, and the updating of traffic and incident messages. Each of these requirements is discussed in the General Description section.



United States Department of Transportation - Federal Highway Administration