The perception of vehicle speeds by pedestrians.

Author(s)
Goodwin, P.B. Hutchinson, T.P. & Wright, C.C.
Year
Abstract

An experiment was carried out in which untrained observers estimated the speed of vehicles passing them, the true speeds being measured with a radar meter. The variability of the subjects' estimates was a more important source of error-the standard deviation of estimated minus true speed was about 5 mile/h for all subjects. There was a tendency for observers to underestimate high speeds. The interpretation of the results leads to an intriguing statistical paradox which is explained in this report.

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Publication

Library number
B 4953 /83/
Source

London, University College Research Group in Traffic Studies, 1974, 12 p., graph., tab., ref.

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.