Title
Supporting driver headway choice: The effects of discrete headway feedback when following headway instructions
Author
Risto, M.
Martens, M.H.
Publication year
2014
Abstract
With specific headway instructions drivers are not able to attain the exact headways as instructed. In this study, the effects of discrete headway feedback (and the direction of headway adjustment) on headway accuracy for drivers carrying out time headway instructions were assessed experimentally. Two groups of each 10 participants (one receiving headway feedback; one control) carried out headway instructions in a driving simulator ; increasing and decreasing their headway to a target headway of 2s at speeds of 50, 80, and 100km/h. The difference between the instructed and chosen headway was a measure for headway accuracy. The feedback group heard a sound signal at the moment that they crossed the distance of the instructed headway. Unsupported participants showed no significant difference in headway accuracy when increasing or decreasing headways. Discrete headway feedback had varying effects on headway choice accuracy. When participants decreased their headway, feedback led to higher accuracy. When increasing their headway, feedback led to a lower accuracy, compared to no headway feedback. Support did not affect driver's performance in maintaining the chosen headway. The present results suggest that (a) in its current form discrete headway feedback is not sufficient to improve the overall accuracy of chosen headways when carrying out headway instructions; (b) the effect of discrete headway feedback depends on the direction of headway adjustment. © 2014 Elsevier Ltd and The Ergonomics Society.
Subject
Human Performances
PCS - Perceptual and Cognitive Systems
ELSS - Earth, Life and Social Sciences
Mobility
Headway choice accuracy
Headway feedback
Headway instructions
Physical therapy
Driver's performance
Driving simulator
Following headway
Headway choice accuracy
Headway instructions
Overall accuracies
Sound signal
Time headway
Ergonomics
accuracy
adult
article
controlled study
driving ability
feedback system
female
human
human experiment
male
normal human
simulation
task performance
velocity
To reference this document use:
http://resolver.tudelft.nl/uuid:17606c4c-607f-4e2b-b2d2-152721e7c404
DOI
https://doi.org/10.1016/j.apergo.2014.02.003
TNO identifier
503225
Publisher
Elsevier Ltd
ISSN
1872-9126
Source
Applied Ergonomics, 45 (4), 1167-1173
Document type
article