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基于组合优化的角度，提出了优化公交网络设计的非线性０－１规划模型，以所有乘客流的出行时间和要实现公交网络的资金投入为费用目标函数，在满足车站容量限制的条件下，最小化目标函数以获得公交线路的优化决策。
Based on combinatorial optimization, a nonlinear 0-1 programming model is proposed to optimize the design of public transport network. Taking the travel time of all passenger flows and the capital input of public transport network as the objective function of cost, under the condition of meeting the capacity constraints of stations, Minimize the objective function to get the bus line optimization decision.