Ergonomics and Safety of Intelligent Driver Interfaces

By Y. Ian Noy | Go to book overview

consistent with the overall route. During each subgoal, they seem interested primarily in information needed to reach the subgoal.

The information most useful to drivers in constructing a cognitive map is that which represents network knowledge. Network knowledge representations are very effective for navigation despite their distortion of the real world (in terms of forms and distance). Alternatively, road maps that are accurate representations of the real world may not facilitate internalization of the information in a manner useful for road navigation.


CONCLUSIONS

Navigation in an unfamiliar area, at least at the tactical level, can be regarded as a process of subdividing the task into a series of subtasks (or subgoals) demarcated by turning points. The driver needs information about unique buildings or objects (i.e., landmarks), specific route options (i.e., paths), and intersections along the route (i.e., nodes) in order to achieve each subgoal. Information such as landmarks, paths, and nodes are interconnected in one-dimensional form. That is, two-dimensional map information is not always required. It is easier for the driver to interpret the route if the path between a given intersection and the next is distorted to some extent. The optimal degree of distortion that facilitates route acquisition and does not result in disorientation is an important design issue that requires further research.


REFERENCES

Daimon T. ( 1992). Driver's characteristics and performances when using in-vehicle navigation systems. Third Vehicle Navigation and Information Systems Conference (VNIS'92), 251-260.

Freundschur S. M. ( 1989). Does anybody really want (or need) vehicle navigation aids? First Vehicle Navigation and Information Systems Conference (VNIS'89), 439-442.

Kato T. ( 1986). "What question asking protocols can say about the user interface". International Journal of Man-Machine Studies, 25, 659-673.

Kinoe Y. ( 1989). The VPA method: A method for formal verbal protocol analysis. In G. Salvendy & M. J. Smith (Eds.), Designing and using human-computer interfaces and knowledge based system (pp. 735-742). Amsterdam: Elsevier Science.

Lynch K. ( 1960). The image of the city. Cambridge, MA: MIT Press.

Newell A., & Simon H. A. ( 1972). Human problem solving. Englewood Cliffs, NJ: Prentice-Hall.

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