Speed, Traffic Complexity and Visual Performance: A Study on Open Road

This paper's aim is to provide empirical evidence of a psychological perspective in which the attentional variables are crucial to understanding the risk of speed. The relation between speed, traffic demands, assignment of visual resources and probability of human error are analyzed and discussed. The paper addresses the visual demands imposed by speed within and across different traffic conditions in a specific experiment. Its objective is to describe driver's visual response to speed and traffic complexity and to provide interpretation of the observed visual changes in attentional terms, including the comparison with the effects produced by increased mental load. The observed effects provide evidence of adaptive attentional responses to speed and traffic complexity. Regarding traffic versus speed, speed did not contribute to an additive effect of increased workload within the range of speeds that were tested. In order to develop an intelligent alternative for speed control and more effective safety measures, generic considerations about the risk of speed should be discouraged; speed should be considered together with attention and in specific traffic conditions.


  • English

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 339-354
  • Monograph Title: Traffic and Transport Psychology: Theory and Application. Proceedings of the ICTTP 2004

Subject/Index Terms

Filing Info

  • Accession Number: 01006559
  • Record Type: Publication
  • ISBN: 0080443796
  • Files: TRIS
  • Created Date: Oct 25 2005 5:37PM