考虑车流通行效率的混行交叉口时空资源配置  

Configuration of Spatial-temporal Resources at Intersections Considering Travel Efficiencies of Mixed Flows

作　　者：钱国敏 任璐 季青原 冯远静[1] 章立辉[5] 王殿海[5] QIAN Guo-min;REN Lu;JI Qing-yuan;FENG Yuan-jing;ZHANG Li-hui;WANG Dian-hai(College of Information Engineering,Zhejiang University of Technology,Hangzhou 310023,China;Enjoyor Technology Co.Ltd.,Hangzhou 311422,China;Journal Center,Chang'an University,Xi'an 710064,China;Zhejiang Lab,Hangzhou 311121,China;College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江工业大学,信息工程学院,杭州310023 [2]银江技术股份有限公司,杭州311422 [3]长安大学,学术期刊管理中心,西安710064 [4]之江实验室,杭州311121 [5]浙江大学,建筑工程学院,杭州310058

出　　处：《交通运输系统工程与信息》2023年第2期67-73,83,共8页Journal of Transportation Systems Engineering and Information Technology

基　　金：国家重点研发计划(2019YFE0126100,2018YFB1600500)。

摘　　要：为优化小汽车和大型车混行环境下交叉口时空资源配置,本文基于车道模型构建一套以通行能力最大为目标的混合整数线性规划模型。在模型中,首先,考虑许可车道位置对不同转向的小汽车车流和大型车车流通行效率的不同影响,以提升车道模型实际应用效果;其次,松弛车道位置约束,不再固定左直右进口车道的相对布设位置,以进一步考虑车流通行效率受许可车道位置影响对交叉口时空资源配置的影响;随后,考虑到相对布设位置改变会引发一些受车道渠化方案影响的潜在冲突,构建相应约束以判断潜在冲突是否存在,以及考虑其对交叉口时间资源配置的影响。数值算例结果表明:考虑车流通行效率受许可车道位置影响会改变交叉口时空资源配置,相比于传统车道模型,所构建模型在确保车流运行安全的基础上可提升交叉口最大通行能力,提升程度随大型车占比和车道位置对车流通行效率影响的增大而逐渐增大,随大型车与小汽车通行效率差异的增大呈现先增大后减小的趋势。To optimize the configuration of spatial-temporal resources at intersections with mixed traffic flow of passenger cars and heavy vehicles,this paper proposes a set of mixed integer linear programming(MILP)model with aim to maximize the intersection capacity.In the model,different impacts of the locations of permitted lanes on flows of different modes and vehicle turning maneuvers are considered to increase the model applicability.The constrains on the relative setting position of permitted lanes for left-turn,through and right-turn are released.That's to say,the permitted left-turn lanes don't have to be on the left of the permitted through lanes,and the permitted through lanes don't have to be on the left of the right-turn permitted lanes.This may induce some new flow conflicts(potential conflicts)and whether these conflicts exist is affected by the lane channelization scheme.Thus,some constraints are added in the model,among which one is to identify which potential conflicts are arisen with specific lane scheme,the other is to determine these conflicts'impact on the configuration of temporal resources at intersections.The results from numerical tests show that this impact will change the configuration of spatial-temporal resources at intersections.Compared with the conventional lane-based model,the modified model can significantly improve the intersection maximum capacity while ensure safe flow propagation.The improvement on the intersection maximum capacity increases with the heavy vehicle proportions and the impact of lane location on travel efficiency.But with the increase of the difference of travel efficiencies between heavy vehicles and passenger cars,the improvement first increases and then decreases.

关 键 词：交通工程 时空资源配置 车道模型 交叉口 通行能力 

分 类 号：U491[交通运输工程—交通运输规划与管理]