GIS outsourcing-Subway GIS project, yanyuan gis

GIS outsourcing-Subway GIS project, yanyuan gis
(1) Metro protection and engineering geological management
• Metro Protection
Metro traffic has the characteristics of high traffic volume and fast speed, and is different from other transportation modes in the special space for underground operation. Therefore, Metro protection is particularly important. First, complete regulations and regulations must be prepared, and professional protection teams should be established to strictly monitor the construction activities in the control protected area around the line; secondly, according to the high frequency of monitoring objects and the large amount of monitoring information, we also need to establish a daily inspection system and support multimedia data archiving, this allows you to monitor the construction sites in sensitive areas in real time, accurately, and effectively. 26.
Figure 26 subway inspection data management • engineering and geological data management
Many accidents occurred during subway construction were caused by the lack of scientific investigation on complex geological conditions, the lack of standardized and standardized management of geological data, and the lack of corresponding security measures. The powerful data management function of GIS not only provides analysis and decision support for accident prevention and response, but also saves resources and avoids repeated investment in geological surveys.
1. Drilling Data Management: the city's unified geological drilling database is established for overall planning. The quick batch import function can be provided for existing geological software data to accelerate the import of existing electronic and paper files, 27. See figure 28.
2. Perform Two-dimensional and three-dimensional simulation and analysis on the geological drilling coverage area at any time to quickly grasp the geological conditions along the line, as shown in Figures 29 and 30. 3D Geological Simulation Analysis of Two-Dimensional Drilling Data Management 3. A daily submission system is established for all construction projects, including planning, construction, and completion. Project information of each station and each interval is provided, description of the project progress. The photos of on-site construction are directly submitted by the grass-roots units. The Center Administrator can obtain the first-hand engineering materials at any time. 31. Fig 31 Guangzhou Metro Engineering Construction System (2) Subway emergency resource and dispatch command Management
As a platform for providing services for public travel, urban subway has the risk of emergencies in construction and operation, due to the burstable, public nature of subway accidents, the seriousness of dangers, the uncertainty of development, and the urgency of emergency handling, the subway has high requirements on emergency response and command, using GIS information technology to ensure timely, orderly, efficient, and proper handling of subway emergencies is the key to ensuring the security of subway construction and operation. 24. Figure 24 emergency resource query figure 25 emergency assistance rescue (3) subway commercial resource management and public Travel Network Service System
Urban Metro is a part of urban infrastructure. The planning, construction and operation of Metro promote the appreciation of real estate resources along the route and create material conditions for the development of underground commercial resources, the huge passenger flow brought about by the operation of the subway makes the development of various resources (communication, advertising, shops, real estate, etc.) along the line and underground a objective demand. Changes the extensive management in the past, implements fine Information Management and pre-desktop sales, improves the operation efficiency of the subway, and creates rich output for Subway enterprises. Figure 25 Metro commercial resource management as an urban transportation service industry, the value regression point must be based on providing good services for citizens, the good application scalability of GIS can provide a solid foundation for the establishment and implementation of the subway travel service system. The entire public service system module includes the basic functions of General GIS, including zoom-in and zoom-out, peripheral query, center positioning, distance calculation, and full-text search. In the full-text search, in addition to the POI search and merchant search, the public transport search content is subdivided into the retrieval functions of subway sites, subway lines, bus sites, and bus lines. The comprehensive public service travel query service not only facilitates public travel, but also promotes commercial resources owned by the subway .. Figure 35 the smooth operation of Guangzhou Metro Geographic Information System at Guangzhou Metro 1 station laid a solid foundation for the operation philosophy and development direction of Guangzhou Metro, it provides long-term support for Guangzhou Metro's scientific decision-making and intelligent management.
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Composition of Geographic Information System (GIS)

1. Computer Hardware System
A computer hardware system is a general term for physical devices in a computer system. It can be electronic, electrical, magnetic, mechanical, or optical components or devices. It is the physical shell of GIS.
2. Computer Software System
A computer software system is a required program that integrates data processing models or algorithms;
3. system development, management, and use personnel
A well-planned geographic information system project should include the project manager responsible for system design and implementation, technical personnel for information management, application engineers for system customization, and users who ultimately run the system.
4. Spatial Data
Spatial data, such as natural, social, and humanistic data, with spatial locations as reference. It can be images, images, texts, tables, and numbers, the GIS system is input through remote sensing satellites, digital products, digital devices, and related professional software, it is the material content of the real world expressed by GIS after model abstraction.
5 Internet
Today's GIS is very different from GIS a few years ago. Its components are not only limited to single-host terminals, but also rely on the Internet, technologies such as web2.0, distributed computing, and webservice, especially those of the mobile Internet in recent years, have integrated 3 s into an integral whole. Everyone can become the source of gis data, all of this is fortunate to the progress and widespread application of Internet technology.