GIS outsourcing of zhongke yanyuan --- subway 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.

Two-dimensional Drilling Data Management 3D Geological Simulation Analysis

3. A daily submission system is established for all construction projects, including planning, under construction, and completed projects. Project information of each station and interval and description of the project progress are provided, the photos of on-site construction shall be directly submitted by the grass-roots units. The center management personnel can obtain the first-hand engineering materials at any time. 31.

Figure 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

(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 subway commercial resource management

As an urban transportation service industry, the value of subway 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 Guangzhou Metro Station 1

The smooth operation of Guangzhou Metro geographic information system laid a solid foundation for Guangzhou Metro's operation philosophy and development direction, and provided long-term support for Guangzhou Metro's scientific decision-making and intelligent management.

GIS outsourcing of zhongke yanyuan --- subway GIS