Results of letter legibility tests for design of signs on Pennsylvania Turnpike; interchange signs; tunnel approach signs.


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    Title :

    Signing turnpike


    Additional title:

    Roads Streets


    Contributors:

    Published in:

    Publication date :

    1940


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Massachusetts turnpike

    Callahan, W.F. | Engineering Index Backfile | 1958


    Turnpike traffic observations

    Witheford, D.K. | Engineering Index Backfile | 1969


    Pennsylvania Turnpike issue

    Engineering Index Backfile | 1939


    Denver-boulevard turnpike

    Downing, R.L. | Engineering Index Backfile | 1952


    Kansas' High-Tech Turnpike

    British Library Online Contents | 1993