Poorly visible on-premise commercial signs have been associated with reduced safety because drivers trying to locate and make sense of these signs may drive slower than the rest of traffic and perform erratic, last-second maneuvers. One of the main reasons for reduced sign visibility is poor sign lighting. In addressing this issue, research has demonstrated that internally illuminated on-premise signs have 40% to 60% greater visibility than externally illuminated signs on a controlled test track. Even so, an ever-increasing number of jurisdictions are implementing sign ordinances that prohibit the use of internally illuminated on-premise signs, mainly for aesthetic reasons. The objective of this research was to expand on the earlier test track research by evaluating the relative visibility of internally and externally illuminated signs on open roads in the real world. The results of this research clearly demonstrate the superiority of internally illuminated signs across a wide variety of driving conditions, sign offsets, sizes, shapes, colors, external lighting designs, and quality.


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    Title :

    Relative Visibility of Internally versus Externally Illuminated On-Premise Signs


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2010-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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    Thompson Kuhn, B. / Garvey, P. M. / Pietrucha, M. T. et al. | British Library Conference Proceedings | 1997


    Model Guidelines for Visibility of On-Premise Advertisement Signs

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