自行车干扰下机动车交通流的元胞自动机模型  

Cellular automaton model for the motor-vehicle flow under the interference of bicycles

作　　者：贾宁[1] 马寿峰[1] 

机构地区：[1]天津大学管理学院系统工程研究所,天津300072

出　　处：《系统工程理论与实践》2010年第7期1333-1339,共7页Systems Engineering-Theory & Practice

基　　金：国家863计划项目(2006AA11Z210);国家自然科学基金(70671073)

摘　　要：用NS模型和EBCA1模型分别描述机动车流和自行车流的行为,用摩擦干扰和阻滞干扰体现自行车对机动车的干扰作用,建立了自行车干扰下机动车交通流模型并利用数值模拟研究了其行为,并通过与实测数据的对比证明了模型的合理性.通过分析仿真数据发现,机动车流受到的主要干扰形式取决于两种车流的密度.自行车的干扰主要影响到低密度的机动车流,使其流量、速度都有较明显降低.同时,机动车流中阻塞的发生更加频繁但持续时间较短.A model for the motor-vehicle flow under the interference of bicycles is presented. The NS model and EBCA1 model are used to describe motor-vehicle flow and bicycle flow respectively, and the block and friction interferences are used to describe the influence of bicycles on motor-vehicles. Then the model is verified by the empirical data and investigated using numerical simulations. Simulation data shows that the densities of two flows determine which kind of interference plays the leading role. The low-density motor-vehicle flow is greatly impacted by the bicycles, which causes a remarkable decrease in both volume and average speed. Meanwhile, jams in motor-vehicle flow emerge more frequently but with shorter duration.

关 键 词：机非混合交通流 多值元胞自动机 摩擦干扰 阻滞干扰 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]