Ergonomics and Safety of Intelligent Driver Interfaces

By Y. Ian Noy | Go to book overview

Chapter 3
A Functional Description of ATIS/CVO Systems to Accommodate Driver Needs and Limits

John D. Lee Battelle Human Factors Transportation Center, Seattle

Advanced traveler information systems/commercial vehicle operations (ATIS/CVO) systems have the potential to dramatically change the task of driving and navigating vehicles. One reason for this dramatic change is the diversity of systems that can be classed as ATIS/CVO. These systems range from navigation aids to trip planning and hazard notification systems. Although technology exists to develop many of these systems, it is unclear whether the systems alone or in combination will enhance or degrade driver safety and efficiency. Understanding how intelligent transport systems (ITS) technology might be deployed to enhance driver performance requires both analytical and empirical research. This chapter takes an analytic approach to examining the functionality of ATIS/CVO systems and their implications for driver performance and acceptance.

Successfully integrating a diverse set of features so that they enhance rather than hinder drivers' abilities requires a functional description of the overall system. A functional description can be defined as a representation that addresses generic capabilities, requirements, and processes of a system; however, this representation does not specify physical configurations or mechanisms. Thus, a functional description explains how different system configurations may satisfy system requirements, but it does not identify the specific, physical mechanisms used to satisfy system requirements. Therefore, any number of combinations of physical mechanisms might combine to create a function. For example, a function such as route guidance can be delivered by mechanisms including voice, icons, or a highlighted route on an electronic map.

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