An Applied Model for Highway Alignment Optimization Using Particle Swarm Optimization Method

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Bagherian, Mehdi | 2011

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41749 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Shafahi, Yousef
Abstract:
A basic highway design problem is to find the most economical alignment connecting two given end points based on topography, soil conditions, socioeconomic factors and environmental impacts, while satisfying a set of design and operational constraints. The cost function complexity and numerous limitations such as highway design criteria have made this problem a NP-hard one. In this study, a swarm based searching algorithm has been applied to a three dimensional highway alignment optimization model. The spatial data has been exploited from a GIS databases using a heuristic swift approach. In addition, the majority of cost items that depend on highway design have been extended in a practical and realistic way. Finally, the efficiency of the proposed model has been verified through applying in some artificial and realistic problems. Results indicate that the extended program can be regarded as a practical approach to deal with highway alignment optimization problem
Keywords:
Geographic Information System (GIS) ; Particles Swarm Optimization (PSO) ; Optimal Mission Design ; Highway Design ; Geometric Design

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