Research on the realization and application of WebGIS for high-speed railway

With the widespread application of Internet/Intranet, the interoperability and portability are the most important issues in open geographic information system so that a WebGIS based on Internet/Intranet and hybrid strategy dispatch management system is presented, and it has been the chief tendency of the development of GIS (geographical information system). High-speed Railway Fundamental Information Database System (HSRDB) is an important science and technology project of railway ministry in 2006 of China. How to display the information using GIS for high-speed railway is the research aim of this paper. Currently WebGIS is widely used in many fields, however its application in high-speed railway is relatively new. This paper proposes a four-layer structure of the GIS based on WebGIS for high-speed railway, which includes client layer, web server layer, application layer and database layer. On the basis of it, the paper discusses the system's software architecture, achievement method and its functions. Finally, the paper also introduces the key technologies in system achievement.