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Title: Low frequency lateral acceleration and subjective ratings of acceleration intensity and driving confidence in production cars
Authors: Mansfield, Neil J.
Whiting-Lewis, Elinor
Keywords: Acoustics
Vibration
Standard
Issue Date: 2004
Publisher: © Multi-Science Publishing
Citation: MANSFIELD, N.J. and WHITING-LEWIS, E., 2004. Low frequency lateral acceleration and subjective ratings of acceleration intensity and driving confidence in production cars. Journal of Low Frequency Noise Vibration and Active Control, 23 (4), pp.221-230.
Abstract: There are few studies in the literature that relate subjective ratings to objective measures of low frequency lateral acceleration such as might be experienced whist cornering in a car. This paper reports a study where 1203 subjects drove two different cars (‘sport’ and ‘comfort’) on two different lateral acceleration trials. Objective measures of acceleration were taken, in addition to ratings of lateral acceleration intensity and confidence. It is shown that there was little difference between the peak lateral accelerations experienced in the two cars, although males chose to drive with greater lateral acceleration (i.e. at higher speed) than the females. Despite differences between the objective measures of acceleration being small, subjective data showed that the intensity of acceleration was rated higher for the comfort car than the sport car indicating that subjective ratings are context specific. Ratings of intensity were correlated with measures of peak acceleration for each car / trial combination. Drivers were more confident driving the sport car than the comfort car on the two trials. However, there was only a weak and inconsistent relationship between lateral acceleration and driving confidence. It is hypothesised that this is an example of risk homeostasis whereby drivers choose to moderate their speed (and therefore the lateral acceleration) in response to their confidence level that might be affected by a complex combination of factors.
Sponsor: This research was funded by Marketing International, Little Hadham, UK with support from Ford Motor Company Limited.
Version: Published
DOI: 10.1260/0263-0923.23.4.221
URI: https://dspace.lboro.ac.uk/2134/17326
Publisher Link: http://dx.doi.org/10.1260/0263-0923.23.4.221
ISSN: 0263-0923
Appears in Collections:Published Articles (Design School)

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