What are the advantages and functions of gis in urban planning?

Application advantages of GIS in urban planning

1.GIS makes urban planning more intuitive and reasonable;

The general drawing software has strong graphic ability, but the ability of attribute data management is relatively weak. Geographic information system (GIS) has spatial data and attribute data, which makes up for the defects of pure graphics and text in urban planning and greatly improves the graphic expression of spatial data and spatial analysis of attribute data. Using the graphic information system established by urban small-scale topographic map, the spatial model of the whole city or sub-region is established, and the related information such as roads, buildings, population and public facilities in GIS database is queried, which provides an intuitive and reasonable planning tool for urban master planning.

2. The storage, management and analysis function of GIS for planning data: Integrating land management with the massive storage data and powerful graphic operation function of GIS technology can instantly and conveniently understand the current situation of urban land use, land ownership boundaries and other information, make urban planning land more scientific and transparent, and provide strong support for the rational use of urban land use. GIS supports various forms of spatial data, and provides good data maintenance and updating capabilities, as well as query and analysis capabilities of spatial information such as query, superposition, classification, network, proximity and digital elevation models, which is of great significance to the rationalization of spatial analysis of urban planning.

Thirdly, the role of GIS in urban planning decision-making

GIS has a powerful function of spatial information analysis. Through the simulation, selection and evaluation of planning schemes, it can help planners make better planning decisions. For example, we can use GIS to manage spatial data quickly and effectively, and make spatial visualization analysis, so as to determine the location of commercial centers, analyze potential markets, and find the laws of commercial areas.

The rapid data updating and real-time spatial analysis of GIS provide good technical support for the dynamic adjustment of urban planning. With the help of GIS, the implementation of urban planning can be supervised and fed back, and the planning scheme can be quickly adjusted according to the implementation situation.