Dynamic Support System Research for Earthquake Prevention Planning based on Petri Net Simulation Methodology on Background Image

(1)地震时消防系统的动态检查和重建：即使在大地震固有危险带来的混乱中，消防系统也必须可靠。危险分为两种类型，限制性的或断路性的。如果前者发生，一些活动将被推迟一段时间，如果发生后者，一些活动将无法进行，直到恢复工作完成。利用这些危险概念及其子网络，我们开发了地震灭火系统的宏Petri网模拟器。在城市地区，应急交通受到大量民用汽车的严重限制。这个问题在上面提到的宏观网络中被认为是限制性危险之一。为了设置子网络的参数，我们还构建了消防车在交通阻塞情况下运行的微观Perti网模拟器。提出了一个基于危险信息收集和城市火灾蔓延预测的战略指挥系统。(2)Dynami…地震时疏散计划情景的更多检查和重建：疏散计划是一个必须从多个角度进行检查的情景。我们尝试在规划区的背景图像上使用PETRI网方法来支持对第一个场景的检查和部署到更安全的场景。首先，我们开发了城市密集区木屋疏散的Petri网模拟器。房屋倒塌造成的危害对疏散行动具有约束性，其影响点也是固定的。但火灾造成的危害是切断疏散，其有效范围随着火灾的蔓延而扩大。我们结合火灾蔓延模拟器构建了描述这种情景的子网络，并提出了地震火灾风险备选地点的情景设置和疏散演练的规划。其次，开发了中山区人员疏散的Petri网模拟器。在这里，面积不像城市那样平坦。因此，我们引入探测信息技术来采集地理数据，并开发更多的情景拟合程序来建立背景图上的避难路线Petri网。较少

(1) Dynamical check and rebuilt of fire fighting system at earthquake : Fire fighting system must be reliable even in confusion brought by hazards inherent in a big earthquake. Hazards are classified into two types, restrictive or cutting-off. If the former break out, some of activities are delayed for a certain period and if the latter occur, some of activities become impossible to be performed until recovery works have been finished. We develop macro Petri net simulator of fire fighting system at quake using those hazard concepts and their sub-nets. In urban area, emergency traffic is restricted heavily by a lot of civil cars. This problem is considered in macro net mentioned above as one of restrictive hazards. To set up parameter of sub-net, we also construct micro Perti net simulator for running of fire engines under obstruction of traffic jam. We propose a strategic direction system based on information gathering of hazards and forecast of fires spreading in urban area.(2) Dynami … More cal check and rebuilt of evacuation planning scenario at earthquake : Evacuation plan is a scenario which must be checked from various view points. We try to support to examine and deploy the first scenario into more safety one using Petri net methodology on background image of planned area. Firstly, we develop Petri net simulator for evacuation in urban densely built-up area of wooden houses. Hazard caused from houses collapsed is restrictive to evacuation action and its effective point is also fixed. But hazard caused from fire is cutting-off to evacuation and its effective point is expanded according to fire spreading. We construct sub-net to describe this scenario linking with fire spreading simulator, and propose scenario setting of alternative site and planning of evacuation drill for earthquake fire risk. Secondly, we develop Petri net simulator of evacuation in the intermediate and mountainous area. Here, area is not flat like urban area. So we introduce the probe information technology to gather geographical data and develop more scenario-fitting procedure to build-up refuge rout Petri-net on a background picture. Less