Analytical investigation of the boundary-triggered phase transition dynamics in a cellular automata model with a slow-to-start rule  

作　　者：贾宁 马寿峰 钟石泉 

机构地区：[1]Institute of Systems Engineering,Tianjin University

出　　处：《Chinese Physics B》2012年第10期38-43,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 70971094 and 50908155);the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT)

摘　　要：Previous studies suggest that there are three different jam phases in the cellular automata automaton model with a slow-to-start rule under open boundaries.In the present paper,the dynamics of each free-flow-jam phase transition is studied.By analysing the microscopic behaviour of the traffic flow,we obtain analytical results on the phase transition dynamics.Our results can describe the detailed time evolution of the system during phase transition,while they provide good approximation for the numerical simulation data.These findings can perfectly explain the microscopic mechanism and details of the boundary-triggered phase transition dynamics.Previous studies suggest that there are three different jam phases in the cellular automata automaton model with a slow-to-start rule under open boundaries.In the present paper,the dynamics of each free-flow-jam phase transition is studied.By analysing the microscopic behaviour of the traffic flow,we obtain analytical results on the phase transition dynamics.Our results can describe the detailed time evolution of the system during phase transition,while they provide good approximation for the numerical simulation data.These findings can perfectly explain the microscopic mechanism and details of the boundary-triggered phase transition dynamics.

关 键 词：traffic flow boundary-triggered phase transition cellular automata time evolution analytical solution 

分 类 号：TP301.1[自动化与计算机技术—计算机系统结构]