The study evaluated six candidate signs in both prohibitory and permissive versions. Truck drivers and members from the general driving public participated in the study. Signs were evaluated as to their meaning, legibility, recognition time and liklihood of confusion with other selected symbol signs. Subjects also ranked the candidate signs according to preference. Overall, the study concludes that a symbol consisting of the capital letter HC inside a green(permissive) or red (prohibitory) ring designating permissive or prohibitory routes respectively was, on balance, the most effective sign across the measures utilized in the study.


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    Title :

    Evaluation of Candidate Symbolic Routing Signs for Trucks Carrying Hazardous Cargo


    Contributors:
    J. Walker (author) / E. Alicandri (author) / K. Roberts (author)

    Publication date :

    1985


    Size :

    36 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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