MEASURING ROAD USER BEHAVIOR WITH AN INSTRUMENTED CAR AND AN OUTSIDE-THE-VEHICLE VIDEO OBSERVATION TECHNIQUE

The limitations of human information processing capabilities are apparent in modern road traffic. Research methods for studying road user behavior range from unobtrusive observations of actual traffic to highly controlled laboratory experiments. Often the incompatibility between controllability and validity makes the choice of a suitable method difficult. Described in this paper are recent developments in two research methods used at the TNO Institute for Perception. In-car measurements using an instrumented car enable a detailed analysis of the behavior of the individual driver. The behavior of arbitrary road users can be analyzed quantitatively by outside measurements with video techniques. Recently developed computer-based techniques allow the quick, efficient, and flexible use of both methods. The methods are illustrated by examples of recent research in which driver behavior is analyzed in terms of time-related measures. At the control level of the driving task, several results can be explained by the Time-to-Line-Crossing (TLC) measure. At the guidance level, the Time-to-Collision (TTC) measure defines the severity of interactions between road users. The correspondence between the results of both approaches suggests that drivers directly use such time measures for vehicle control and decision making strategies in traffic.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1989/1213/1213-010.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=MEASURING+ROAD+USER+BEHAVIOR+WITH+AN+INSTRUMENTED+CAR+AND+AN+OUTSIDE-THE-VEHICLE+VIDEO+OBSERVATION+TECHNIQUE&author=R.+van+der+Horst&author=H.+Godthelp&publication_year=1989
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1213, Human Performance and Highway Visibility: Design, Safety, and Methods. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • van der Horst, Richard
  • Godthelp, Hans
• Publication Date: 1989

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 72-81
• Monograph Title: Human performance and highway visibility: design, safety, and methods
• Serial:
  • Transportation Research Record
  • Issue Number: 1213
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Behavior; Drivers; Instrumented vehicles; Measurement; Test procedures; Videotapes
• Subject Areas: Highways; Safety and Human Factors; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 00492059
• Record Type: Publication
• ISBN: 0309048095
• Files: TRIS, TRB, ATRI
• Created Date: Mar 31 1990 12:00AM