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Title: Alarm timing, trust and driver expectation for forward collision warning systems
Authors: Abe, Genya
Richardson, John H.
Keywords: Alarm timing
Issue Date: 2005
Publisher: © Elsevier
Citation: ABE, G. and RICHARDSON, J., 2005. Alarm timing, trust and driver expectation for forward collision warning systems. Applied Ergonomics, 37(5), pp. 577-586
Abstract: In order to improve road safety, automobile manufacturers are now developing Forward Collision Warning Systems (FCWS). However, there has been insufficient consideration of how drivers may respond to FCWS. This driving simulator study focused on alarm timing and its impact on driver response to alarm. The experimental investigation considered driver perception of alarm timings and its influence on trust at three driving speeds (40, 60 and 70 mile/h) and two time headways (1.7 and 2.2 s). The results showed that alarm effectiveness varied in response to driving conditions. Alarm promptness had a greater influence on ratings of trust than improvements in braking performance enabled by the alarm system. Moreover, alarms which were presented after braking actions had been initiated were viewed as late alarms. It is concluded that drivers typically expect alarms to be presented before they initiate braking actions and when this does not happen driver trust in the system is substantially decreased.
Description: This is Restricted Access. This article was published in the journal, Applied Ergonomics [© Elsevier] and is available at: http://www.sciencedirect.com/science/journal/00036870.
URI: https://dspace.lboro.ac.uk/2134/2243
ISSN: 0003-6870
Appears in Collections:Closed Access (Design School)

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