Based on the analysis of the shortest path algorithm in urban traffic network and the characteristics of GIS, the algorithm of optimal dispatch path when emergency incident occurs is put forward.
在分析城市道路网络最短路径算法和地理信息系统（GIS）特点的基础上，提出城市紧急事件发生后，应急调度中最佳路径算法。
Path analysis is the most important to Traffic network analysis, while optimal path algorithm is the core of path analysis.
交通网络分析的重点是路径分析，而路径分析的核心为最优路径算法。
The analysis accurately finds out the weaknesses that influence the system performance and indicates the path for the system's improvement and the optimal design of the heat economy.
该分析准确找出了影响系统性能的薄弱环节，也为系统的改进和热经济优化设计及操作指明了方向。
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