Development of Petri Net Simulator as Dynamic Pictorial Representation System and Its Application Studies to aide Transportation and Disaster Prevention Planning

1.基础研究结果（1）背景图像的Petri网构建及彩色表示的强化：通过设置Petri网插入背景图像，可以在其真实的规划空间图像上构建Petri网模型，作为公众参与式规划的依据，并通过改变场所的形状、大小和颜色来扩展图形表示。（2）Petri网数据库的构造：通过在Petri网的真实的规划空间图像上重建Petri网，并在Sdata文件中注释关键字，将生成的Petri网作为Petri网仿真器用户的数据库，该数据库由原始开发者和用户的注释共同生成，用户为自己的规划参考构建自己的网。2.应用研究结果（1）总线优先级备选仿真：通过对背景图像的网络构造，将真实的公交发车道路上设置“公交优先区“的行为表示为交通Petri网，并通过可视化仿真，显示出发车车辆在每个信号周期内都能行驶到设置道路区域的最前沿，同时建立了描述公交优先车道备选运行方式的交通Petri网，并通过仿真比较，给出了较优的运行方式。（2）防灾规划的仿真：对普通情况下的消防系统建立了宏观Petri网，对地震情况下的消防系统通过添加危险网进行了扩展，并进行了比较仿真，对火灾发生时建筑物内的人员疏散进行了Petri网描述，并通过仿真验证了偏离情景的影响。（3）区域气候图像的模拟：利用空间的形状、大小和颜色的多样性，开发了Petri网表示方法，模拟了由一座桥梁和周围山脉构成的区域气候的四季图像。

1.Results of Fundamental Study(1)Net Construction on Its Background Image and Reinforcement of Colored Representation : By equipping submenu to insert background image, Petri Net model can be constructed on its real planning space image and can be used as basis for public involvement style planning.Also, pictorial representation are expanded by diversifying shape and size of places and colored.(2)Constraction of Petri Net Data Base : By rebuilding Petri nets on their real planning space images and commenting keywords in their Sdata files, develqed Petri nets are stored as data base for user of Petri Net Simulator.This data base is grown by both commenting from original developer and from user who refer to build their own net for their own planning.2.Results of Application Studies(1)Bus Priority Alternative Simulation : By using net construction on its background image, setting "bus advanece area"in real bus departure road is represented as traffic Petri net and by its visual simulation, departure buses are shown to advance to the forefront of setting road area at eveiy signal cycle.Traffic Petri net is also built to describe alternative operation systems for bus priority lane and better one is presented by their comparative simulation.(2)Simulation of Disaster Prevention Planning : Macro Petri net is constructed for fire prevention system during ordinal case and expanded for one during earthquake by adding hazard nets and comparative simulation are demonstrated.Also, evacuation in building at fire breakout is described by Petri net and influence of deviation from scenario is demonstrated by their simulation.(3)Simulation of Regional Climate Image : By using diversity of shape and size of places and colored, Petri net representation is developed to simulate four seasons image of regional climate created by a bridge and surrounding mountains.