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中文摘要：
为提高支路的利用率，以降低主干道的交通压力，从降低路网阻抗及提高交通效率的角度出发，提出单向交通组织的优化方法。建立以路网阻抗及出行时间最小化为目标的双层优化模型，其中上层模型通过优化支路的单向交通组织方案使得目标值达到最小，下层模型按照容量限制——增量加栽方法进行交通量的重分配。通过建立虚拟路网，类比分析单向交通组织优化前后的路网阻抗及出行时间，验证单向交通组织的优化效果。
英文摘要：
To improve the utilization of branch roads and reduce the traffic pressure on arterial roads, the optimization approach of one-way traffic organization is proposed from the view of reducing network impedance and improving traffic efficiency. The bievel programming model is developed with the objective of minimizing network impedance and travel time. The minimum objectixie value of the upper model is obtained by optimizing one-way traffic, and the lower one adopts the capacity limitation-incremental loading method to distribute traffic flow. Through establishing virtual road network, the effectiveness of one-way traffic organization is proved by comparing the network impedance and travel time before and after optimization.
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