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Related Experiment Videos

Effective vehicle width in self-paced tracking.

K DeFazio1, D Wittman, C G Drury

  • 1Department of Industrial Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA.

Applied Ergonomics
|December 1, 1992
PubMed
Summary

Varying lateral tolerance in driving tasks impacts speed and errors differently depending on whether track or vehicle width changes. Vehicle width changes had a greater effect on performance and safety in confined spaces.

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Area of Science:

  • Human-computer interaction
  • Automotive engineering
  • Cognitive psychology

Background:

  • Self-paced tracking tasks, like driving, involve a relationship between speed and lateral tolerance.
  • Previous research manipulated lateral tolerance by altering track width or vehicle width independently.
  • The impact of these distinct manipulation methods on performance was not fully understood.

Purpose of the Study:

  • To investigate whether varying lateral tolerance through track width versus vehicle width yields equivalent results in performance.
  • To compare subject behavior and performance in both an automobile driving task and a computer/mouse task.
  • To assess the implications of these findings for driving safety, particularly in constrained environments.

Main Methods:

  • Utilized an automobile driving simulator to replicate real-world driving scenarios.

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  • Employed a computer-based task using a mouse to simulate tracking and precision control.
  • Systematically varied lateral tolerance using two distinct methods: changing track width and changing vehicle width.

    • Main Results:

    • Results indicated that the two methods of varying lateral tolerance did not produce equivalent performance outcomes.
    • Participants' performance suggested that vehicle width was perceived as less critical than track width.
    • Increases in vehicle width led to significant increases in both speed and error rates, even with constant lateral tolerance.

    Conclusions:

    • The method of manipulating lateral tolerance significantly influences performance in tracking tasks.
    • Vehicle width appears to be a more critical factor than track width in determining speed and accuracy.
    • Findings highlight potential safety concerns in driving, especially in confined spaces where vehicle width is a key consideration.