The goal of in-vehicle information system (IVIS) technologies is to increase the mobility, improve the efficiency, and increase the safety and/or convenience of the motoring public. To achieve this goal, in-vehicle information systems must be designed to include good human factors principles that consider the capabilities and limitations of the operators of these systems. Introduction of in-vehicle information systems should have minimal impact on driving performance and should, whenever possible, improve driver performance. That is, these systems should not introduce significant distraction or additional cognitive workload to the driver. This requires that in-vehicle information systems do not overload the limited driver attentional resources that are devoted to the driving task itself. Examples of these systems include computerized traveler information systems such as navigation and services location, and business-related systems such as on-line email and facsimile. Because of the complexity of these systems, it is important to assess the demands of using these systems on the driver's resources used for the primary task of driving The U. S. Federal Highway Administration (FHWA) recently completed a research project with two main objectives: to provide designers of IVIS technologies with a set of tools and criteria that could be used in evaluating the attentional resources required by IVIS designs, and to provide highway planners and engineers with tools and criteria to evaluate proposed IVIS requirements. More specifically, the goals of the project included: (i) developing a behavioral model that predicts the driving task performance of drivers interacting with in-vehicle information systems, and (ii) developing a prototype software package that uses the behavioral model to evaluate the attention demand required to operate a given IVIS. The behavioral prototype software was termed IVIS DEMAnD for In-Vehicle Information System (IVIS) Design Evaluation and Model of Attention Demand. (Author/publisher).
Samenvatting