The fundamental concept of fractals and the fractal curves were introduced and the fractal characteristics were discussed for concrete, brick and soil road surfaces. A road roughness index was found to be appropriate for the quantification of road roughness. The resulted two characteristic features of irregularity and statistically self-similarity from road data analysis indicated that each section of the road elevation contour is a compressed scaling performance from its upper level scaled contour. Thereby fractal dimension D turned out to be a suitable index for the quantification of the complexities of road surfaces. Differences among three contrasting road types were found to be great, indicating a fractal dimension of 1.237, 3.435, and 14.610, respectively, for concrete, brick and soil road.


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    Titel :

    On Fractal Behavior of Road Surface Roughness


    Beteiligte:
    Zhixiong, L. (Autor:in) / Lanying, Z. (Autor:in)

    Kongress:

    First International Conference on Transportation Engineering ; 2007 ; Southwest Jiaotong University, Chengdu, China



    Erscheinungsdatum :

    09.07.2007




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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