The report examines relationships between roadway design features and vehicle class in order to attribute the use of roadway design features and their estimated cost to those classes of vehicles that need or are particularly accommodated by each design element. Vehicle width, height, length and performance are analyzed for association with geometric design elements. Through a screening process, it has been determined that there are significant relationships between vehicle width and width of pavement and shoulders; vehicle height and vertical clearances (including interchanges); and vehicle performance (weight/horsepower ratio) and vertical alignment in rolling and mountainous terrain. Equations are developed to determine the cost effects of variable vehicle characteristics as they pertain to cost of right-of-way and utility adjustments; grading and drainage; base and surface; and structures.


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    Title :

    Synthesis of Information on Roadway Geometrics Causal Factors


    Contributors:
    J. B. Saag (author) / J. E. Leisch (author)

    Publication date :

    1981


    Size :

    150 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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