The main objective of this study is to accommodate the increasing vehicular traffic through rural Simpson County, Kentucky. The study involved thoroughly designing a new interchange along Interstate 65 (I-65) and creating a connector road between the interchange and the major road arterial, US-31W. All engineering specifications were followed per the American Association of State Highway and Transportation Officials (AASHTO) “Green Book” and the Kentucky Transportation Cabinet (KYTC) design manual. A series of comprehensive analyses were performed using numerous software, including AutoCAD, OpenRoads Designer (ORD), Highway Capacity Plus (HCS+), and crash information website. Each software provided unique capabilities to aid in the full roadway design. Examples of the analyses performed included earthwork quantity estimation (either cut or fill), vertical and horizontal alignment design, level-of-service (LOS) analysis, crash and traffic safety investigation, and material cost calculations (for pavement design and construction). The benefit-to-cost (B/C) ratio selection method was then applied to assess the different design alternatives. The design revealed that the diamond interchange was the optimal interchange type in the rural study area of Simpson County, Kentucky. The total study cost was estimated to be roughly $9.5 million. From the B/C ratio analysis, it was found that it would take 3.5 years to benefit from the proposed interchange construction (right after opening the interchange to the public) in reducing fatal-related crashes and 3.16 years to benefit in reducing total crashes. This study provides useful insights and guidance for appropriately selecting and designing new interchanges and connector roads in rural areas, which can be easily transferred to other rural states in the US.


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    Titel :

    Comprehensive Design of Interchanges and Connector Roads in Rural Areas: Kentucky Case Study


    Beteiligte:
    Rone, Jaci (Autor:in) / Stevens, Riley (Autor:in) / Haleem, Kirolos (Autor:in)

    Kongress:

    International Conference on Transportation and Development 2024 ; 2024 ; Atlanta, Georgia



    Erscheinungsdatum :

    13.06.2024




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Design and Operations of Road Segments and Interchanges in Rural Areas

    Pande, Anurag / Wolshon, Brian / Reza Omrani et al. | Wiley | 2015


    Possible Expectancy Violations on Frontage and Conventional Roads at Interchanges

    Nelson, Alicia / Tydlacka, Jonathan / Chrysler, Susan T. et al. | Transportation Research Record | 2013


    Comparison of Diamond Interchanges with Roundabout Interchanges

    Bared, J. G. / Kaisar, E. I. | British Library Conference Proceedings | 2000


    Spacing of interchanges on freeways in urban areas

    Leisch, J.E. | Engineering Index Backfile | 1959