基于冲击波理论的PFI几何信号相位控制模型  

PFI Geometric Signal Phase Control Model Based on Shock Wave Theory

作　　者：焦彦利 林向楠 骆中斌 乔小龙 马艺芸 潘兵宏[7] JIAO Yanli;LIN Xiangnan;LUO Zhongbin;QIAO Xiaolong;MA Yiyun;PAN Binghong(Hebei Provincial Institute of Transportation Planning and Design,Shijiazhuang 050000;Transportation Industry R&D Center of Automatic Driving Technology,Shijiazhuang 050000;Hebei Engineering Research Center of Vehicle-Road Cloud Network,Shijiazhuang 050000;Hebei Expressway Group Company Limited,Shian Branch,Shijiazhuang 051430;China Merchants Chongqing Communications Technology Research&Design Institute Co.,Ltd.,Chongqing 400067;College of Computer Science,Chongqing University,Chongqing 400044;College of Highway,Chang′an University,Xi′an 710064)

机构地区：[1]河北省交通规划设计研究院有限公司,石家庄050000 [2]自动驾驶技术交通运输行业研发中心,石家庄050000 [3]车路云网河北省工程研究中心,石家庄050000 [4]河北高速公路集团有限公司石安分公司,石家庄051430 [5]招商局重庆交通科研设计院有限公司,重庆400067 [6]重庆大学计算机学院,重庆400044 [7]长安大学公路学院,西安710064

出　　处：《公路交通技术》2024年第6期165-176,共12页Technology of Highway and Transport

基　　金：河北省科技基金项目(19275601D)。

摘　　要：针对国内新型非常规交叉口平行流交叉口(PFI)研究不充分、规范不完善及应用有限等问题,建立交叉口几何信号相位控制模型,对PFI的几何布局和信号协调进行研究。以交通流冲击波理论为基础,分析PFI中各处停车线的排队情况,并建立PFI几何信号相位控制模型;通过设定一系列约束条件,提出最小周期条件下满足排队不溢出的模型参数求解方法;同时,基于交通仿真模拟,构建传统平交口和改进PFI方案的VISSIM仿真模型,并结合实测交通数据进行校准。结果显示:1)PFI方案在通行效率、安全性和交通可持续性方面均优于传统平交口,具体表现为能有效提升交叉口通行能力、降低平均延误时间和排队长度、减少冲突数,以及降低车辆油耗和CO排放量,验证了PFI几何信号相位控制模型的有效性;2)本文提出的基于冲击波理论的PFI几何信号相位控制模型及其配套设计方法,可为非常规交叉口的设计和建设提供参考。Aiming at the new unconventional intersection parallel flow intersection(PFI)in China,the problems of insufficient research,imperfect specification and limited application,the intersection geometric signal phase control model is established to study the geometric layout and signal coordination of PFI.Based on the theory of traffic flow shock wave,the queuing of stop lines at each location in PFI is analyzed,and the geometric signal phase control model of PFI is established.By setting a series of constraints,a model parameter solution method is proposed to satisfy the queuing without overflow under the minimum cycle condition.Meanwhile,based on the traffic simulation simulation,the VISSIM simulation model of traditional level crossing and improved PFI scheme is constructed and calibrated with the measured traffic data.The results show that:1)The PFI scheme outperforms the traditional level intersection in terms of access efficiency,safety and traffic sustainability,which is manifested in the effective enhancement of intersection capacity,the reduction of average delay time and queue length,the reduction of the number of conflicts,as well as the reduction of vehicle fuel consumption and CO emissions,which verifies the validity of the geometric signal phase control model of PFI;2)The PFI geometric signal phase control model based on shock wave theory and its supporting design method proposed in this paper can provide reference for the design and construction of unconventional intersections.

关 键 词：交通控制 非常规交叉口 平行流交叉口(PFI) 交通流冲击波理论 VISSIM仿真 

分 类 号：U491[交通运输工程—交通运输规划与管理]