Document Detail

The effect of time headway feedback on following behaviour.
MedLine Citation:
PMID:  9183476     Owner:  NLM     Status:  MEDLINE    
A field study was conducted to assess the impact of continuous time headway feedback on following behaviour. An equipped vehicle was fitted with a microwave radar connected to a head-down display. The display was supplemented by an auditory tone which sounded if headway decreased below 1 second. Sixteen subjects participated in five consecutive sessions conducted on a U.K. motorway. The presence of the system and the time of the journey (i.e. rush hour vs off-peak) was manipulated across the experimental sessions. Results revealed that the presence of the system reduced the proportion of time the subjects spent at low headways (e.g. < 1 second). This effect was accentuated for: (a) subjects who habitually follow at shorter headways and (b) those scenarios characterised as following a lead vehicle at a constant velocity. The presence of the system increased time headway to a lead vehicle when an overtaking manoeuvre was initiated, but only in off-peak traffic. The system had no significant effect on speed-keeping behaviour or driver's mental workload.
S H Fairclough; A J May; C Carter
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Accident; analysis and prevention     Volume:  29     ISSN:  0001-4575     ISO Abbreviation:  Accid Anal Prev     Publication Date:  1997 May 
Date Detail:
Created Date:  1997-08-19     Completed Date:  1997-08-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1254476     Medline TA:  Accid Anal Prev     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  387-97     Citation Subset:  IM    
HUSAT Research Institute, Loughborough University, Leicestershire, U.K.
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MeSH Terms
Accidents, Traffic / prevention & control*
Automobile Driving*
Great Britain

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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