Title
The limits of path error-neglecting in straight lane driving
Author
Instituut voor Zintuigfysiologie TNO
Godthelp, J.
Publication year
1988
Abstract
It is argued that driving cannot simply be considered as a permanent, closed-loop task. Time-to-line-crossing (TLC) is used as a measure to quantify the potential role of visual open-loop and path-error-neglecting strategies. Basically, TLC represents the time available for a driver to neglect path errors until the moment at which any part of the vehicle reaches one the lane boundaries. The strategy adopted by drivers during error-neglecting should be represented in terms of decision rules, describing how drivers switch from error-neglecting to error-correcting when approaching the edge of a lane. The experiment to be presented in this paper was designed to provide these rules for a straight lane-keeping task. Drivers were instructed to neglect the vehicle path error and to switch to error-correcting only at that moment when the vehicle heading could still comfortably be corrected to prevent a crossing of the lane boundary. The results show that the lateral distance from the lane boundary at which drivers switch to error-correction increases about linearly with the lateral approach speed. This mechanism results in an approximately constant TLC (time) distance at the moment of decision: this result being consistent over a broad range of speeds.
Subject
avoidance behavior
decision making
driver
driving ability
human
nonbiological model
psychologic test
psychological aspect
road safety
theoretical study
To reference this document use:
http://resolver.tudelft.nl/uuid:454403b9-853e-4dc0-b691-5e39ff251e5a
TNO identifier
6596
Source
Ergonomics, 31 (31), 609-619
Document type
article