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为了使地下快速路集散点选址满足需求点的要求,针对地下快速路集散点选择模型,考虑设施服务能力等条件的限制,进行了模型的改进。采用定性和定量分析相结合的方法,在以集散效率最大化为目标的集散点选择模型的约束条件中,加入了备选集散点容量限制的约束,对集散点选择模型进行了改进,通过一个算例对结果进行分析,并验证了改进后模型的可行性。研究结果表明:改进后的集散点选择模型能够求得最优解,获得的最优布置点分散,能够满足最大范围的需求并引导需求的空间转移。
In order to meet the requirements of the demand points for the distribution points of the underground expressway, the model is improved for the selection of the distribution points of the underground expressways and the restriction of the service capacity of the facilities. The method of combining qualitative and quantitative analysis is used to select the model of distribution point selection. The constraints of the capacity constraints of the alternative distribution point are added into the constraints of the selection model of the distribution point which maximizes the collection and distribution efficiency. The selection model of the distribution point is improved. The example analyzes the result and verifies the feasibility of the improved model. The results show that the improved distributed point selection model can find the optimal solution, and the optimal placement points are decentralized, which can meet the needs of the widest range and guide the spatial transfer of demand.