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PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON SOFT COMPUTING TECHNOLOGY IN CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING
Edited by: Y. Tsompanakis, J. Kruis and B.H.V. Topping
A Genetic Algorithm for Optimising Sustainability Performance of Road Pavements
A.P. Chassiakos, M.I. Sotiropoulou, N. Moschonas and P. Iliakopoulos
Department of Civil Engineering, University of Patras, Greece
A.P. Chassiakos, M.I. Sotiropoulou, N. Moschonas, P. Iliakopoulos, "A Genetic Algorithm for Optimising Sustainability Performance of Road Pavements", in Y. Tsompanakis, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fourth International Conference on Soft Computing Technology in Civil, Structural and Environmental Engineering", Civil-Comp Press, Stirlingshire, UK, Paper 29, 2015. doi:10.4203/ccp.109.29
Keywords: pavement, road infrastructure, environmental impact, social impact, sustainability, optimisation, genetic algorithm..
Road sustainability performance goals require that all adverse impacts on pavement deterioration are kept within tolerable limits. In this paper, an optimisation model is developed that aims to provide decision support to engineers in developing appropriate pavement maintenance strategies to ensure acceptable levels of safety and functionalism of the highway network in time as well as reduction of environmental impact. This model supersedes previous ones in considering the generalised cost, which includes the agency cost, the user cost, and the environmental impacts, as the main decision parameter. As a result of the problem size and complexity, the optimisation employs a genetic algorithm which can handle a large number of road sections, search a wide range of possible solutions, and reach a solution within reasonable computation time. The model has been evaluated with several test cases and Pareto curves have been developed. The results indicate that the proposed model can effectively assist pavement preservation and management decisions in highway networks.
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