CAJ | 학술논문

基于富者愈富理论,建立了一种具有马太效应的元胞自动机交通流模型.借助计算机数值模拟,得到了随机延迟概率受余弦函数控制的交通流模型的基本图.进一步研究发现:交通流量并不是密度的单值函数,初始条件同样影响交通流量.在基本图上某些特定的密度区域流量出现了两个分支,这是交通亚稳态的典型特征.结果表明:马太效应是导致交通复杂性的主要因素.
기우부자유부이론,건립료일충구유마태효응적원포자동궤교통류모형.차조계산궤수치모의,득도료수궤연지개솔수여현함수공제적교통류모형적기본도.진일보연구발현:교통류량병불시밀도적단치함수,초시조건동양영향교통류량.재기본도상모사특정적밀도구역류량출현료량개분지,저시교통아은태적전형특정.결과표명:마태효응시도치교통복잡성적주요인소.
Based on the rich-get-richer theory, a cellular automaton traffic flow model with Matthew effect is established. With the help of computer numerical simulation, the fundamental map of the traffic flow model that its stochastic delay probability is controlled by the cosine function is obtained. It is found by further study that the traffic flow is not only decided by density, but also affected by initial conditions. The flow appears two branches in some specific density area of the fundamental map, which is typical characteristic of metastable traffic. The results show that Matthew effect is the main cause to trigger traffic complexity.