重庆理工大学学报2025，Vol.39Issue(5)：216-224,9.DOI:10.3969/j.issn.1674-8425(z).2025.03.027
车联网环境下拥堵路网异质交通流逐日演化研究
Day-to-day dynamical evolution of heterogeneous traffic flow for congested traffic network under connected vehicle environment
摘要
Abstract
To describe the route choice characteristics and estimate the evolution law of day-to-day traffic flow under connected vehicle environment,we analyze travelers'heterogeneities from the perspective of subjective historical experience and objective information from intelligent connected mobile unit.The method of exponential smoothing is employed to deduce the heterogeneous travelers'perceptive travel time.Based on the characteristics of traffic flow on congested network,the road travel time function is built.The equilibrium state of day-to-day dynamic evolution of heterogeneous travelers'traffic flows is described using the theory of stochastic travel network.To satisfy traffic network equilibrium,the day-to-day dynamic adjustment method of traffic flow is proposed.Further,the day-to-day dynamic evolution model,which increases the prediction precision of traffic flow,of heterogeneous traffic flows for congested traffic network equilibrium under connected vehicle environment is built.The iterative algorithm is designed to solve the model.Numerical experiments are conducted based on the real road network.Our results show travelers'perceptive time error,historical travel experience and information compliance of connected vehicle have significant impacts on day-to-day evolution of heterogeneous traffic flows.The route equilibrium flows reach to the maximum with the route travel time perceptive factor value of 0.3.The average rate of growth of the mean of route traffic flows aroused by historical travel experience and information compliance of connected vehicle are 2.09%and 16.57%respectively.The traffic network flows considering urban congestion accurately describes the collector-distributor characteristics of vehicles.At the equilibrium traffic state of tested road network,the route traffic flows considering the road congestion covered a range between 5～20 pcu/h.The network flows tend to be uniform distribution in order to disperse the pressure of local road network.The research reveals the day-to-day dynamic evolution laws of travelers'route choice and heterogeneous travelers'traffic flows under congested network,which enhance the prospectiveness and dynamic controllability of transportation planning and management under connected vehicle environment.关键词
交通工程/逐日均衡/路径选择/拥堵网络/异质性Key words
traffic engineering/day-to-day equilibrium/route choice/congested traffic network/hetero-geneity分类
建筑与水利引用本文复制引用
孙超,金洋洋,赵思齐..车联网环境下拥堵路网异质交通流逐日演化研究[J].重庆理工大学学报,2025,39(5):216-224,9.基金项目
教育部人文社会科学研究基金项目(22YJCZH153) （22YJCZH153）
中国博士后科学基金项目(2021M691311) （2021M691311）
