基于CAS理论的城市空间系统建模与仿真研究-毕业论文.docVIP

摘要 基于 CAS 理论的城市空间系统建模与仿真研究 摘要 随着经济发展、科技创新、信息时代到来，交通运输方式和生产工具产生巨大的变 革，城市空间结构的演变形式也越来越复杂。从发展趋势看，城市空间结构演化的研究， 有助于人们加深对中国城市化进程、区域经济一体化与城市产业集聚等问题的认识。 城市空间系统是一个典型的复杂适应系统，其区域空间结构的演化被认为是大量微 观主体的区位决策在时间维的累积和空间维的集聚过程，同时还应该重视宏观变化对微 观主体的反馈和约束。这种微观和宏观不同尺度的关系问题已经称为当前城市空间演化 系统研究关注的焦点。从城市系统中各个微观主体的交互作用，以及各主体与环境间的 交互与反馈角度来研究城市空间系统，能够更加真实地模拟复杂的现实城市空间系统。 本文以城市空间系统的结构演化为主要研究对象，提出了城市系统空间演化模型的 概念框架，从定性层面揭示了城市空间系统中各类主体之间的交互；利用多 Agent“自 下而上”的建模技术构建了城市空间系统模型；利用面向对象的 Java 编程技术进行各 类主体的程序设计，在 Swarm 平台下对 MAS 模型进行仿真，最终的仿真结果符合城市空 间结构演化理论——分散化集中理论。这一仿真结果证实了模型的现实可行性，对城市 规划有一定的借鉴价值。 关键词：复杂适应系统；Agent；城市空间演化；Swarm；仿真；分散化集中 I Abstract RESEARCH ON URBAN SPACE SYSTEM AND SIMULATION BASED ON CAS THEORY ABSTRACT Along with the development of economy, the innovation of science and technology and the coming of information age, the mode of traffic transportation and produce tool take a huge transformation, the evolution form of Urban Spacial Structure (USS) become more and more complex. To the trend of development, the research on USS evolution redound to strengthen the understanding of some problems: urbanization in China, the economic integration of area and the industry centralize in city by people. Urban Spatial System (USPS) is a complex adaptive system, which is an aggregating process including mass decision-makings of microcosmic agents in space and time dimensions and the effect and feedback of macroscopical transformation on microcosmic agents. At present, the relationship between microcosmic and macroscopic scales has become the focus in Urban Spacial Evolution (USE) research. It is believed that the real complex. USPS can be simulated more vividly from the view of interactions among various agents and between agents and their environment. Taking the structure evolution of USS as research object, the thesis presents an conceptual framework of spatial evolution model of urban system, the model displays the alternation between kinds of agents in USS under determine the nature lay; the USS model is bu