基于GIS的时空节点规划与优化方法研究

Planning and Optimization of the Spatio-Temporal Nodes in an Appointment Based on GIS

时间地理学框架描述了个体行为的时间和空间约束,可用于确定活动双方的时空交集并进行定量的时空分析。该文分析了活动预约双方的时间和空间限制条件,根据个体时空约束类型的不同分别将其表达为时空路径、圆柱和棱镜。在此基础上,将求解活动双方会面的时空节点问题转换为求解双方的时空交集,并在ArcGIS环境中得以实现。这种基于时间地理学和GIS技术进行时空节点规划和优化的方法可应用于应急救灾、物流配送、旅游规划等领域,辅助实现对时间和地点的预约及对路径的优化,进而提高效率、节约成本。

In the society,some activities require planning and the time and space constraints of individuals, which helps to booking of time and place. Time geography visually demonstrates determine the space and time intersection of different individuals and operate quantitative spatio-temporal analysis accordingly. After analyzing the time and space constraints of individuals in an activity, this paper expressed their spatio-temporal constraints as a space-time path, cylinders and prisms according to their different types of time and space constraints. On this basis, this paper converts the problem of finding the meeting place and time of both sides in an appointment into calculating their time and space intersection in the ArcGIS environment. This planning and optimization method of the spatio-temporal nodes which was based on time geography and GIS technology can be used in emergency relief, logistics, tourism and some other fields to plan the time and place of an appointment as well as get the path optimized, which thereby contributes to improvements of efficiency and savings of costs.