Research on LID Technique Based on TFN-AHP Analysis Method

At present, there is a lack of effective and systematic evaluation means for the development of vegetation treatment network to select on-site storm water management schemes (LID). Aiming at this problem, this project intends to use the triangular fuzzy number analytic Hierarchy Process (TFN-AHP) on the basis of existing studies to construct a set of evaluation methods applicable to the on-site rainwater management measures combination scheme. Firstly, a single sponge city vegetation treatment network was established to conduct a comprehensive evaluation system on site. Firstly, a single sponge urban plant treatment network was constructed and its rainwater management measures were compared in the field. The AHP method is used to construct a set of multi-level rainwater management scheme based on vegetation treatment network to carry on the multi-level evaluation of on-site rainwater management scheme. The triangular fuzzy number was used to construct the evaluation matrix to obtain the weights of evaluation factors at each level, and then a planting treated network was obtained to study the combination of onsite rainwater management measures. And a concrete “sponge” project as the background of the empirical study of the implementation effect of the project. The research results can lay a foundation for the practical application of on-site rainwater management combination measures using the sponge city vegetation treatment network in the future.