A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Material transportation problems in construction projects under an uncertain environment
Abstract Uncertainty is prevalent and unavoidable in business operations. This paper presents a mathematical model for the optimal routing of shipping raw materials to customers that requires simultaneous pickup and delivery with soft time windows for travel time in a fuzzy random environment. It minimizes total traveling time while maximizing customer satisfaction and meeting constraints characterized by fuzziness and randomness in pickup and travel time. The model is strong NP-hard. Through embedding of customer satisfaction as a constraint and converting fuzzy random variables into deterministic ones using expected values, a viable algorithm is developed using the Global-Local-Neighbor Particle Swarm Optimization (GLNPSO) technique, and tested by solving a real routing problem faced by a large construction project in China. Results are encouraging, both in solution quality and potential savings, to justify the solution method and model formulation.
Material transportation problems in construction projects under an uncertain environment
Abstract Uncertainty is prevalent and unavoidable in business operations. This paper presents a mathematical model for the optimal routing of shipping raw materials to customers that requires simultaneous pickup and delivery with soft time windows for travel time in a fuzzy random environment. It minimizes total traveling time while maximizing customer satisfaction and meeting constraints characterized by fuzziness and randomness in pickup and travel time. The model is strong NP-hard. Through embedding of customer satisfaction as a constraint and converting fuzzy random variables into deterministic ones using expected values, a viable algorithm is developed using the Global-Local-Neighbor Particle Swarm Optimization (GLNPSO) technique, and tested by solving a real routing problem faced by a large construction project in China. Results are encouraging, both in solution quality and potential savings, to justify the solution method and model formulation.
Material transportation problems in construction projects under an uncertain environment
Yan, Fang (author) / Xu, Jiuping (author) / Han, Bernard T. (author)
KSCE Journal of Civil Engineering ; 19 ; 2240-2251
2015-03-23
12 pages
Article (Journal)
Electronic Resource
English
Material transportation problems in construction projects under an uncertain environment
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