摘要
为了分析宏观交通流参数变化规律及其加载特征,选取深圳市中心区主要进出通道为研究对象,并用自动车牌识别数据验证了回滞现象.进而发现存在加权流量和加权密度变化趋势的背离现象,提出背离指标评价背离现象的强弱级别和周期特征.结果表明,交通运行状态越接近于拥堵,其加权流量和加权密度的变化趋势的背离程度越强.
In order to analyze the changing law of macro traffic flow parameters and their loading characteristics,the main entrance and exit passages in the central district of Shenzhen city were selected as the research object and the hysteresis phenomena were validated with automatic license plate recognition data.Furthermore,it is found that there is a deviation between the trend of weighted flow and weighted density.The deviation index is proposed to evaluate the strong and weak levels and periodic characteristics of the deviation phenomenon.The results show that the closer the traffic condition is to congestion,the stronger the deviation between the trend of weighted flow and weighted density.
作者
金雷
谢秉磊
JIN Lei ,XIE Binglei(Harbin Institute of Technology, Shenzhen Graduate School, Shenzhen 518055, China)
出处
《武汉理工大学学报（交通科学与工程版）》
2018年第4期579-583,共5页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金面上项目资助(71473060)
关键词
城市交通
背离现象
宏观交通流参数
车牌识别数据
深圳市
urban traffic
decoupling phenomena
macroscopic traffic flow parameters
license recognition data
Shenzhen city
