【摘要】：針對信號交叉口調(diào)頭區(qū)域設置不合理的問題,選擇傳統(tǒng)四相位控制交叉口為研究對象,基于通行效率最優(yōu)提出了最佳調(diào)頭位置的計算方法.該方法首先通過建立左轉(zhuǎn)與調(diào)頭共用車道的損失時間模型,揭示了左轉(zhuǎn)和調(diào)頭車流在不同交通條件下的相互影響機理;其次基于不同流向車輛的概率分布函數(shù),構(gòu)建了信號交叉口左轉(zhuǎn)與調(diào)頭共用車道的通行能力計算模型,揭示了調(diào)頭位置對共用車道通行能力的影響特征;最后以淄博市中心城區(qū)為例進行了實例分析.實驗結(jié)果表明,該方法能使左轉(zhuǎn)與調(diào)頭共用車道的通行能力由432 pcu/h提升到509 pcu/h,提高了17.82%.
[Abstract]:Aiming at the unreasonable setting of turn-off area at signalized intersection, the traditional four-phase controlled intersection is chosen as the research object. Based on the optimal traffic efficiency, the calculation method of optimal turn-off position is put forward. Firstly, by establishing the loss time model of left-turn and turn-over shared lane, the interaction mechanism of left-turn and turn-over traffic flow under different traffic conditions is revealed. Secondly, based on the probability distribution function of different flow direction, the capacity calculation model of left turn and turn-over shared lane at signalized intersection is constructed, and the characteristic of the influence of turning position on the capacity of shared lane is revealed. Finally, taking the city center of Zibo as an example, an example is given. The experimental results show that this method can increase the traffic capacity of the shared lane between left turn and turn from 432 pcu/h to 509 pcu/h, by 17.82%.
【作者單位】： 山東理工大學交通學院;淄博市公安局交通警察支隊;
【基金】：國家自然科學基金資助項目(51508315,61573009) 山東省重點研發(fā)計劃資助項目(2016GGB01539)
【分類號】：U491.23
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本文編號：2468157