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城市干道协调溢流控制模型及应用
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作者 谢中教 朱琳 张彤 《道路交通科学技术》 2018年第6期48-52,共5页
在干道发生拥堵的条件下,传统干道协调绿波控制模型不再适用,需要更有效的控制拥堵扩散的策略与模型。基于此,本文基于“先截流-慢纾流”的思路建立干道协调溢流控制模型,重点研究溢流控制策略的启动及结束条件、控制范围及协调溢流控... 在干道发生拥堵的条件下,传统干道协调绿波控制模型不再适用,需要更有效的控制拥堵扩散的策略与模型。基于此,本文基于“先截流-慢纾流”的思路建立干道协调溢流控制模型,重点研究溢流控制策略的启动及结束条件、控制范围及协调溢流控制的交通信号控制参数,并以济南市天桥区南北向通勤交通走廊济泺路为例,应用城市干道协调溢流控制模型,设计控制拥堵扩散、缓解干线交通压力的综合协调信号优化信号控制方案。此外,针对方案实施效果进行了微观路网模型仿真评估,并针对路网通行效率、排队长度、停车延误等评估参数与现状方案进行了对比分析。 展开更多
关键词 溢流控制 交叉口协调信号优化 微观路网仿真
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Microscopic Fuzzy Urban Traffic Simulation with Variable Demand
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作者 Masashi Okushima Takamasa Akiyama Madhu Errampalli 《Journal of Civil Engineering and Architecture》 2012年第5期541-556,共16页
Some microscopic traffic simulations on urban road network are developed up to now. However, the effect of urban transport policy in the local city is influenced with the complex interaction of automobile traffic and ... Some microscopic traffic simulations on urban road network are developed up to now. However, the effect of urban transport policy in the local city is influenced with the complex interaction of automobile traffic and public transport traffic. Particularly, behaviours of vehicles should be described with the fuzziness of the subjective recognition and operation. On the other hand, the trip makers are influenced by various transport policies in terms of mode choice behaviour. The change in mode choice behaviour and number of public transport mode users would eventually affect traffic flow conditions on road network. Modal spilt and traffic conditions of a network are interrelated. Therefore, the present study mainly aims to integrate mode choice model and microscopic traffic simulation model based on fuzzy logic. In the study, the fuzzy logic based mode choice model is proposed. The proposed mode choice model and the existing microscopic traffic simulation model are combined. The developed model has been applied on real urban network to demonstrate the effectiveness of the installation of LRT system. Finally, it is helpful for evaluation of transport policy that the fuzzy logic based microscopic traffic simulation with modal choice model has been constructed. 展开更多
关键词 Microscopic traffic simulation mode choice fuzzy reasoning LRT.
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