This paper presents quantitative effects of windshield veiling glare on the visibility of targets based on a two part research project. The first part involved measurement and modeling of luminance of veiling glare caused by the reflection of different instrument panel materials under range of conditions defined by combination of windshield angle, instrument panel angle, and sun angle. In the second part, the veiling glare model was incorporated in a visibility prediction model based on visual contrast threshold data. A critical visibility condition of a driver approaching a tunnel with the sunlight falling on his windshield and attempting to detect a target inside the tunnel was studied by conducting sensitivity analyses. The sensitivity analysis showed that a 2 ft diameter 10% reflectance target illuminated by 5000 lux of lighting inside a tunnel visibility distances can be seen from 0 to 3,000 feet depending upon driver's age, vehicle design parameters and sun illumination levels.


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    Title :

    Predicting Effects of Veiling Glare Caused by Instrument Panel Reflections in the Windshields


    Additional title:

    Sae International Journal of Passenger Cars- Electronic and Electrical Systems
    Sae Int. J. Passeng. Cars – Electron. Electr. Syst


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2008



    Publication date :

    2008-04-14


    Size :

    7 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Predicting effects of veiling glare caused by instrument panel reflections in the windshields

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    Bhise, V.D. / Sethumadhavan, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2008


    Predicting Effects of Veiling Glare Caused by Instrument Panel Reflections in the Windshields

    Bhise, V.D. / Sethumadhavan, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2008



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