采用双层规划模型描述弹性需求条件下的连续平衡网络设计问题，设计了近似解的启发式算法。
A bilevel programming model and heuristic solution algorithm is proposed to model the continuous equilibrium network design problem with elastic demand.
本文采用双层规划模型描述基于弹性需求的连续平衡网络设计问题，设计了基于灵敏度分析法的启发式求解算法，并给出了一个简单的算例。
A bilevel programming model and heuristic solution algorithm based on sensitivity analysis is proposed to model the continuous equilibrium network design with elastic demand.
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