Reliability theory has recently been utilized to consider the uncertainty in highway geometric design and optimize highway cross-section design safety by reducing crash risk. However, despite the importance of design consistency among successive highway segments and its impact on safety, most previous studies optimized road segments individually. This approach could limit the applicability and transferability of the optimization frameworks in practice. Thus, a system reliability-based optimization framework is proposed in this study to design successive highway cross-section elements while achieving overall design consistency and safety. A sequential search procedure with the basin-hopping stochastic algorithm is adopted to optimize the successive horizontal curve segments. A case study of a 12 km segment with 94 horizontal curves in the Sea-to-Sky Highway, Canada, is considered. The results show that the proposed optimization framework provided higher consistency successive cross-section elements design while minimizing the number of expected crashes and providing consistent crash risk levels.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Incorporating design consistency into risk-based geometric design of horizontal curves: a reliability-based optimization framework


    Additional title:

    TRANSPORTMETRICA A: TRANSPORT SCIENCE
    R. ALSALEH ET AL.


    Contributors:


    Publication date :

    2024-05-03


    Size :

    26 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Reliability Analysis of Horizontal Curves Using Geometric Design Consistency Assessment Criterion

    Hossein Saedi / Ali Abdi Kordani / Seyed Mohsen Hosseinian | DOAJ | 2024

    Free access


    Geometric Design of Compound Horizontal Curves

    Roy, B. K. | British Library Online Contents | 1994


    Geometric Design of Compound Horizontal Curves

    Roy, B.K. | Online Contents | 1994


    Multi-mode reliability-based design of horizontal curves

    Essa, Mohamed | Online Contents | 2016