Studies on active control of social system based on Artificial Life technology

本研究的主要结果可以总结如下：1。提出了一种制定预防措施以减轻地震损害的方法，即充分利用各种信息和诸如实时联机的计算机技术等先进技术，利用目前正在运行的研究和系统。本文主要研究了实时地震工程的概念和重要性。还讨论了考虑到人类行为的社会系统的主动控制。基于广泛的地震监测和地理信息系统（GIS），开发了大型城市燃气管网地震信息采集和网络预警（SIGNAL）系统。2 .对用户建筑物和管道的损坏情况进行了估计，对震级和震源进行了估计，对响应谱进行了评估，并根据评估结果进行了是否切断或维持供电的决策分析。开发了一种基于虚拟现实（VR）的人类疏散行为模拟器，并将其应用于迷宫疏散研究。研究发现，虚拟现实系统可以模拟疏散行为，虚拟现实训练有助于顺利从迷宫中疏散。3 .考虑到灾害演练的风俗化、参与人少、意愿低、演练的安全性等问题，该虚拟现实模拟器具有很大的应用潜力，可以作为防灾减灾的有用工具。与道路网络相关的重要性或临界性是根据桥梁位于道路网络中的路线的重要性以及桥梁被破坏时的直接影响来评估的。根据桥梁作为交通要道的重要程度，确定桥梁改造的优先顺序和地震发生后的应急响应。

The main results of this study may be summarized as follows :1. A means of establishing preventive measures was presented for mitigating earthquake damage by making the most of a variety of information and such advanced technoligies as computer technologies on-line in real time, using studies and systems now in operation. This study focused on the concept and importance of real-time earthquake engineering. Active control of social systems taking into account human behavior also was dealt with.2. A seismic information gathering and network alert (SIGNAL) system for a large-scale city gas network was developed based on extensive earthquake monitoring and geophraphic information system (GIS). The damage estimation to custimers' buildings and pipelines, estimation of the magnitude and hypocenter, evaluation of the response spectrum, and decision analysis whether to shut-off or maintain the supply based on the estimated results were conducted.3. A new simulator for human evacuation behavior using virtual reality (VR) was developed and applied to study evacuation from a maze. It was found that evacuation behavior can be simulated by the VR system, and the trainig using VR helps smooth evacuation from the maze. Considering the issues related to disaster drill, such as its mannerism, decrease of participants and their low volition, and safety of the drill, this VR simulator has high potential and can be a useful tool for disaster mitigation.4. Importance or criticality in relation to a road network was evaluated in terms of the importance of the route the bridge located in the road network as well as the direct effects when the bridge is destroyed. Priority for retrofitting bridges and for emergency response after an earthquake occurrence can be decided accoring to the importance factor of the bridge as a vital transportation link.