Previous research into speed estimation in a driving situation has indicated that the driver's accuracy of judgement was not only affected by vehicle speed but might also be function of both degree and direction of speed change. The present experiment set out to investigate the reality of this relationship by the use of a technique in which members of the general public, acting as subjects, were asked to drive a vehicle at a number of test speeds related to a previous speed by a given ratio. Five different ratios were used. The objective speed ratio produced was then expressed as a function of both speed and subjective or required speed ratio. (Author)


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    Title :

    Effect of Speed and Speed Change on Drivers' Speed Judgment


    Contributors:

    Publication date :

    1967


    Size :

    12 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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