Green City Landscape Design and Planning Based on GIS and Analytic Hierarchy Process Model

Table 2

Model comparison.

Model name	Disadvantages
Scale model	The layout of the model is simple and easy to understand. The final effect is intuitive, but it is easy to be constrained by boundaries; No spatial change can be seen, and the transportation distance and cost cannot be calculated; Layout optimization is incompetent and difficult.
Distance model	The calculation of this model is simple, and it is difficult to accord with the actual situation only by measuring the rationality of distance in planning. Unable to find the best location.
Location allocation model	This model is suitable for simple problems, and the optimal conclusion is obtained by comparing them one by one. If the amount of data is large, the amount of computation increases and the problem is complex, there may not be an optimal solution.