Synchronized Flow in a Cellular Automaton Model with Time Headway Dependent Randomization |
| |
Authors: | CHEN Tao JIA Bin LI Xin-Gang JIANG Rui GAO Zi-You |
| |
Affiliation: | School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044School of Engineering Science, University of Science and Technology of China, Hefei 230026 |
| |
Abstract: | We propose another possible mechanism of synchronized flow, i.e. that a time headway dependent randomization can exhibit synchronized flow. Based on this assumption, we present a new cellular automaton (CA) model for traffic flow, in which randomization effect is enhanced with the decrease of time headway. We study fundamental diagram and spatial-temporal diagrams of the model and perform microscopic analysis of time series data, which shows the model could reproduce synchronized flow as expected. It is also shown that a spontaneous transition from synchronized flow to jam could be observed by incorporating slow-to-start effect into the model. We expect that our work could contribute to the understanding of the real origin of synchronized flow. |
| |
Keywords: | 05.40.-a 89.40.-a |
本文献已被 维普 等数据库收录! |
| 点击此处可从《中国物理快报》浏览原始摘要信息 |
|
点击此处可从《中国物理快报》下载免费的PDF全文 |
|