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Human interfaces are proliferating in vehicles due to increasing convenience features and information systems. Development of simple and safety conscious interfaces are necessary for driver operability and enjoyment. Two emerging technologies enabling new approaches to human interfaces are: 1. Information network systems (INS); 2. Interactive voice systems (IVS). The INS supports the effective combination of multi-function switches and multi-function displays configured through software and enables optimum location of such devices separate from the information or entertainment units themselves. IVS adds another dimension to human interface design as a "hands-free, eyes-free" safety conscious interface for many applications. Th paper describes the methodology and the effects of interactive and multi-modal HI by integrating IVS and INS in an optical information network that achieves efficient and simple vehicle/human interfaces.

In order to achieve the Intelligent Transport Systems (ITS), it is necessary to install more and more information/ entertainment and communication electronics into vehicles. However, because of space availability and device operability in current vehicles, there exist constraints which hinder the installation of multi-media devices. In this paper, some solutions for this problems used in the in-vehicle information network system will be described.

We have developed a navigational system with which the motor vehicle travel route is drawn by a vibration-type rate sensor and a distance sensor, then compared with digital map data and corrected. [1] * [2] It has been verified from numerous field tests that the use of the system being presented here allows a map to be traced. Since this system is a self-contained navigation system in which such other auxiliary means as we found in the radio sign post system are not required, the system is effective in an urban area or other areas subject to radio interference where such radio navigational systems as NAVSTAR GPS (Global Positioning System) and the like do not operate successfully. [3] [4] [5]