基于左转展宽的交叉口时空一体化优化设计

打开文本图片集
【中图分类号】:U491.23 【文献标志码】:A 【文章编号】:1008-3197(2026)01-01-04
【DOI编码】:10.3969/j.issn.1008-3197.2026.01.001
The Spatio-Temporal Integrated Optimization Design of Intersections Based on Left-Turn Widening
WANGLianxiang1,NIUKai²,GUOJin1,ZHANGHaowei1 (1.TianjinHighwayBusinessDevelopmentServiceCentre,anjinO82,China;2.NorthChinaMunicipalEngineringDesign& Research InstituteCo.,Ltd.,Tianjin30o381,China)
【Abstract】:Aimingatthelowoperation eficiencyof theurban intersection,basedonthe wideningof the left-turnlane, this paper constructs a spatio-temporal integration optimization design model of signalized intersection with traffic capacityand average vehicledelayas the optimization index,and uses MATLAB software to solve the optimization model,and the results show that the average vehicle delayof the optimized intersection is reducedby20.7%and theleft-turnqueuelength isshortenedby13.3m.The modelcaneffctively improve the overall traffic efficiency of intersections,reduce the traffic delay of intersections.
【Key words】: intersection;left-turn lane;urban traffic network ;traffic capacity
随着城市机动化水平不断提高,交通拥堵问题日益严重,交叉口的运行效率直接决定着城市路网的整体运行状态,对交叉口的优化设计成为研究热点,
韩霜等提出一种将左转和直行车道与对向出口车道功能变更的交通组织方法,建立交通流饱和加权函数,并采用遗传算法求解;徐新东等充分考虑干线绿波通行效果和干线各交叉口内部自适应优化的需求,建立了干线自适应协调动态迭代优化模型;张生等以总延误最小为目标,建立了基于信号延误的优化模型,并对模型进行了验证;耿中伟结合交叉口的实际问题研究了平面交叉口渠化设计方案,并根据工程实例进行了验证;刘泽球结合交叉口车辆的运行特性,提出了交叉口的优化设计方案;赵晶等对实际路口进行了重新优化,并以饱和度、延误等指标为依据,评定优化效果。(剩余2549字)