Show simple item record Sushma, MB Maji, A
dc.contributor.editor Pasindu, HR 2022-09-13T09:52:27Z 2022-09-13T09:52:27Z 2017-07
dc.identifier.citation ....********....... en_US
dc.description.abstract In practice, the task of designing the horizontal alignment of a highway is done manually based on experience and engineering judgement. As a result, the work is both time and resource consuming and relies heavily on human expertise. This paper presents a general formulation for optimization of horizontal alignment, composed of tangential segments and circular curves. It consists of a constrained optimization problem where the objective function is to minimize the overall cost of the horizontal alignment. These constraints are imposed by curvatures, geometric guidelines, the presence of inaccessible regions, etc. In addition to construction costs, facts considered by this model also include highway geometric code requirements. The paper mainly focuses on fitting the curves with appropriate radius between the tangential sections obtained by connecting the optimum set of point of intersections (Pis). The available methods consider radius of the curves as a constant value, which also acts as a constraint while developing an optimal alignment. Application of the model to a real-world study area is also presented in this paper, along with a comparative study with AutoCAD Civil-3D. en_US
dc.language.iso en en_US
dc.publisher Department of Civil Engineering en_US
dc.subject Geometric design en_US
dc.subject Horizontal alignment en_US
dc.subject Horizontal radius en_US
dc.subject Sequential Quadratic Optimization en_US
dc.subject Non-linear optimization en_US
dc.title Minimizing highway alignment cost by optimizing horizontal curve radius en_US
dc.type Conference-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Civil Engineering en_US
dc.identifier.year 2017 en_US
dc.identifier.conference International conference on Advances in Highway Engineering & Transportation Systems en_US Negombo en_US
dc.identifier.pgnos p. 5 en_US
dc.identifier.proceeding Proceedings of Advances in Highway Engineering & Transportation Systems 2011 en_US

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