基于GIS的地面网络最短路实现在机场飞行区应急救援系统的应用研究

An Implementation of a GIS-based Shortest Path Searching algorithm for Airport Emergency Rescue Management

航空安全是空中交通运输系统正常运行的基础,快度、高效的处理航空安全事故对恢复空中交通系统的正常运行具有重要意义。文章从机场航空安全角度出发,通过分析机场飞行区地面网络结构图,创建了节点、弧段关系数据库以描述机场飞行区的网络拓扑结构,运用Dijkstra算法实现了快速最短路径搜索。在此基础上利用地理信息系统(GIS)二次开发工具MapX组件,以国内某机场为例,在Visusal Basic环境下实现了机场飞行区应急救援信息管理系统,为机场应急救援管理决策的可视化、便捷化提供了支持。同时拓展了MapX开发应用型地理信息系统的空间分析能力。

Aviation safety is the base for the operation of an efficient air transportation system.Quick deployment of emergency rescue has an important meaning to reinstall air transportation in a timely manner.In this paper,through the analysis of airport surface topology,a node-arc relational database is developed and the network topology of airport airside is abstracted.The Dijkstra algorithm is employed to search the shortest path between any nodes.The above components are integrated into the MapX,which is a GIS re-developing tool,within the Visual Basic environment,in order to establish an Emergency Rescue Information Management System for a large domestic airport.The developed system can provide visual and various decision-making support for airport emergency rescue events.This study also expands the spatial analysis capability of MapX in the applied GIS systems.