【摘要】：交叉口"U-turn"組織的效率與交叉口流量分布具有緊密的聯(lián)系,合適的流量分布條件可使得"U-turn"組織具有較常規(guī)四相位控制方式更高的通行效率,反之,則會(huì)凸顯車(chē)輛間的交織和沖突,出現(xiàn)不穩(wěn)定交通流狀態(tài),從而降低交叉口的通行效率,采用仿真的方法,以主路直行流量及次路左轉(zhuǎn)流量為變量,在不同流量組合下,仿真"U-turn"組織,輸出行程時(shí)間及通行能力指標(biāo),同時(shí),仿真同流量條件下的常規(guī)四相位控制方案,輸出對(duì)應(yīng)指標(biāo),分別在三維空間和二維平面內(nèi)分析兩種方式下的一些臨界區(qū)域,得出了"U-turn"組織的合理流量組合區(qū)域,能夠?yàn)閷?shí)踐中可否采用"U-turn"組織的決策提供參考。
[Abstract]:The efficiency of intersection "U-turn" organization is closely related to the traffic distribution of intersection. The appropriate flow distribution conditions can make the "U-turn" organization have higher traffic efficiency than the conventional four-phase control mode. On the contrary, it will highlight the interleaving and conflict between vehicles, and the unstable traffic flow state will occur, thus reducing the traffic efficiency of the intersection and adopting the simulation method. Taking the direct flow of the main road and the left turn of the secondary road as variables, the "U-turn" organization, the output travel time and the capacity index are simulated under different traffic combinations. At the same time, the conventional four-phase control scheme under the same flow condition is simulated, and the corresponding indexes are output. some critical regions in the three-dimensional space and the two-dimensional plane are analyzed respectively, and the reasonable flow combination region of the "U-turn" organization is obtained. It can provide reference for the decision-making of "U-turn" organization in practice.
【作者單位】： 西北工業(yè)大學(xué)自動(dòng)化學(xué)院;華東交通大學(xué)土建學(xué)院;
【基金】：江西省科技廳科技計(jì)劃項(xiàng)目(編號(hào):20123BBE50094) 鐵路環(huán)境振動(dòng)與噪聲教育部工程研究中心項(xiàng)目(編號(hào):12TM01)
【分類(lèi)號(hào)】：U491

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