摘要
由于自行车流交通流微观特征的复杂性,造成对宏观特征三参数的认识也比较困难。而自行车元胞自动机模型的基本单元尺寸来源于其微观特征,所以这里重点描述基于现场视频检测数据的自行车元胞单元尺寸标定方法。通过尺寸标定后模型的演化,说明该改进模型能有效地克服采用固定元胞尺寸所带来的交通流宏观特征数据的不合理性。
Complex microscopic characteristics of bicycle traffic lead to understand difficult its macroscopic properties.Cell size of bicycle cellular automaton model is acquired from the microscopic characteristics.A method of calibrate bicycle cell size based on field video detection data is proposed.And after the calibration of cell size,the running results indicate that improved model can overcome unreasonable bicycle macroscopic characteristics,get from the model＇s running with the fixed cell size.
出处
《交通科技与经济》
2011年第4期58-61,共4页
Technology & Economy in Areas of Communications
基金
住房与城乡建设部科学技术项目(2010-K5-17)
关键词
自行车流
宏观特性
元胞自动机
单元尺寸标定
bicycle traffic flow
macroscopic property
cellular automata
cell size calibration
