1School of Traffic and Transportation, Beijing Jiaotong University, Beijing 1000442School of Engineering Science, University of Science and Technology of China, Hefei 230026
Synchronized Flow in a Cellular Automaton Model with Time Headway Dependent Randomization
1School of Traffic and Transportation, Beijing Jiaotong University, Beijing 1000442School of Engineering Science, University of Science and Technology of China, Hefei 230026
摘要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.
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.
CHEN Tao;JIA Bin;LI Xin-Gang;JIANG Rui;GAO Zi-You. Synchronized Flow in a Cellular Automaton Model with Time Headway Dependent Randomization[J]. 中国物理快报, 2008, 25(8): 2795-2798.
CHEN Tao, JIA Bin, LI Xin-Gang, JIANG Rui, GAO Zi-You. Synchronized Flow in a Cellular Automaton Model with Time Headway Dependent Randomization. Chin. Phys. Lett., 2008, 25(8): 2795-2798.
2008, Vol. 25 
