The location problem is an old and typical problem, and there is a big difference of hazardous materials because of the risk attribute. This paper employs one fuzzy variable, transportation risk which is calculated by the number of affected people, to put forward an expected risk value model for logistics distribution center location problem of hazardous materials, then it designs an Immune Algorithm (IA) based on Fuzzy Simulation to give best solutions. At last, an example is given to verify the efficiency of algorithm it designs, although the number of logistics distribution centers is different, the algorithm still shows good convergence property. This means a lot to the model we proposed and has certain practical function.

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