The study gives primary consideration to the approach-end treatment of channelization, with particular emphasis placed on driver's visibility under condition of night driving in adverse weather. Studies were conducted to determine the relative visibility and serviceability of marking materials for delineating channelization islands. Raised markings constructed with a slurry mixture were the most satisfactory of the devices tested. They provided stripes of sufficient height to cause an adequate vehicle rumble and presented a convenient surface texture for visibility purposes. Other studies were performed to evaluate the relative visibility and legibility of signs used to direct traffic around the approach-ends of channelizing islands. Eight different signs were used. They were similar in geometric configuration but differed in the types of materials used and the methods of illumination. The most satisfactory signs tested had prismatic reflectors or reflective sheeting on a black background. (Author)


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    Titel :

    Channelization


    Beteiligte:
    N. J. Rowan (Autor:in) / T. G. Williams (Autor:in)

    Erscheinungsdatum :

    1966


    Format / Umfang :

    63 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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    Bruening, M.E. | Engineering Index Backfile | 1953


    Traffic channelization methods

    Kelcey, G. | Engineering Index Backfile | 1940


    Designing of intersection channelization

    Hurd, F.W. | Engineering Index Backfile | 1950


    Channelization of motor traffic

    Kelcey, G. | Engineering Index Backfile | 1939