Grey correlation-analytic hierarchy process based evaluation method for potential index of spongy urban area

Abstract

The present invention relates to a grey correlation-analytic hierarchy process based evaluation method for a potential index of a spongy urban area. The potential index of the spongy urban area is potential of reconstructing the urban area into a spongy city, and comprises two aspects of economic development potential and technical development potential, wherein the economic development potential comprises economic development ability and land development ability, the technical development potential comprises building development potential, road development potential and land development potential, and total 11 indexes are selected according to features and influence factors of each part. On the basis of an index system, by using the grey correlation-analytic hierarchy process and by combination with features of the area, an evaluation index matrix and a judgment matrix are constructed, and further the grey correlation degree and the weight of a criterion layer are obtained, so that the potential level of the spongy city construction of the urban area is obtained, namely the potential index of the spongy urban area. The evaluation method can be used for evaluating ecological development potential of city construction of the spongy urban area and has a prospective guidance significance for the construction of the spongy city.

Description

technical field [0001] The invention relates to a method for evaluating the potential index of a sponge urban area based on a gray correlation-analytic hierarchy process, and belongs to the technical fields of urban environment planning, flood disaster prevention and control, and water supply and drainage. Background technique [0002] In recent years, with the gradual expansion of the scale of cities in my country and the increase of impermeable areas, the problems of urban waterlogging prevention and control and utilization of rainwater have become more and more prominent. The requirements of modern urban stormwater management. For this reason, many cities at home and abroad have begun to practice the concept of new stormwater management, combining stormwater storage and seepage engineering technology with urban green space landscape design, and building a "sponge city" with the goal of natural accumulation, natural infiltration, and natural purification. Alleviate urban w...

AI Technical Summary

Problems solved by technology

[0005] The diversity of indicators and the complexity of the relationship between indicators greatly reduce the operability of the evaluation, and it is difficult to use mathematical models to optimize theoretically. Demonstrate, evaluate and select its ecological development potential, but due to differences in personal experience, knowledge and preferences, it is entirely possible to cause inconsistent or unreasonable evaluation results. For this reason, the correlation analysis method and multi-objective in fuzzy mathematics are introduced. The analytic hierarchy process in the planning, on the basis of establishing the gray relational model, uses the analytic hierarchy process to obtain the weight of the evaluation indicators of each urban area, and then makes a more objective judgment on the size of the ecological development potential of each urban area

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