The design of rural at-grade intersections is often referred to as an 'art' rather than a 'science.' The specific decision of whether to provide a left-turn lane is an example of the lack of an available rational objective approach to a major problem. This research has reviewed the various techniques and procedures in use, has measured traffic characteristics at typical Iowa intersections, and has developed a rational approach as a guideline for inclusion of a left-turn lane. The procedure is based on relating the benefits to the road user to the cost of providing the added turning lane. (Author)


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    Title :

    Guidelines for the Inclusion of Left-Turn Lanes at Rural Highway Intersections


    Contributors:
    S. L. Ring (author) / R. L. Carstens (author)

    Publication date :

    1970


    Size :

    69 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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