基于换道决策机理的多车道元胞自动机模型  

Multilane Cellular Automaton Model Based on the Lane-changing Mechanism

作　　者：邓建华[1] 冯焕焕[1] DENG Jian-hua;FENG Huan-huan(College of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,Jiangsu,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《交通运输系统工程与信息》2018年第3期68-73,共6页Journal of Transportation Systems Engineering and Information Technology

基　　金：江苏省自然科学基金(BK20151201);苏州科技大学基金(341311108;XKQ201305)~~

摘　　要：在探索机动车驾驶换道决策机理,分析影响驾驶员换道决策内外因子的基础上,提出了以内部因子为决策变量,外部因子为约束条件的机动车多车道换道模型,并将其引入一维改进舒适驾驶元胞自动机模型,形成基于换道决策机理的多车道元胞自动机模型.不同V/C条件下该元胞自动机模型的运行分析表明:换道驾驶行为会导致自身及周边车辆的加减速、匀速、怠速等运行工况发生变化;不同的内外因子导致车流平均换道次数不同,车流平均速度的波动规律也不同.本文提出的多车道换道模型描述决策机理清晰,能同时描述多个内外因子的共同作用,具有很好的适应性与扩展性.Based on exploring the driver＇s lane-changing decision mechanism and analyzing internal and external factors of driver＇s lane-changing decision, a multilane-changing model, which takes internal factors as decision variable and external factors as constraint condition, is developed. A modified multi-lane cellular automaton model based on lane-changing mechanism is formed by introducing this multilane-changing model into the one-dimensional comfortable driving cellular automaton model. The operation analysis under different V/C conditions of this cellular automaton model shows driver＇s lane-changing behavior should lead vehicle＇s working conditions about itself and surrounding vehicles to change, such as acceleration, deceleration, uniform speed and idle speed, etc.; different internal and external factors should not only lead average lane-changing number to difference, but also lead fluctuation of the average speed to difference. This multilane-changing model describes lane-changing decision mechanism clearly; and describes common effect of multiple internal and external factors also, has good adaptability and expansibility.

关 键 词：交通工程 元胞自动机 换道决策机理 换道决策模型 内外因子 

分 类 号：U491[交通运输工程—交通运输规划与管理]