This paper presents three experiments which were conducted under various road conditions to obtain the optimum forward visibility. The following vehicles were used: a high-speed bus having the front window extending to the floor with a curtain of variable length arranged on the inner surface; a heavy-duty normal control truck having variable visibility; a passenger car also having variable visibility. An oscillograph served to measure speed, acceleration, and deceleration, and a polygraph was used to measure psychogalvanic response which indicates driver excitability and psychophysiological reactions. A feeling test was also conducted. The test results were analyzed in terms of eye angular velocity, and it was found that the optimum lower visibility closely connected with 2 rad/sec of the eye angular velocity. This investigation recommends the optimum range of driving visibility for the vehicles.


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    Title :

    Dynamic Visibility of Motor Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Automobile Safety Conference ; 1970



    Publication date :

    1970-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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