Multi-objective Decision-making Research On Green And Livable Villages And Towns Construction Projects

Green and livable villages and towns are one of the general requirements of the "village revitalization strategy" and an important measure to promote new urbanization and promote the overall development of urban and rural areas against the background of ecological civilization.With the strong support of national policies and funds,the number of declarations for green and livable villages and towns construction projects continue to grow,and a large number of construction projects urgently require decisions.The decision-making stage for a project involves development and reform,housing construction,land,finance,environmental protection and other departments.The evaluation criteria are mainly based on maximizing economic and social benefits,ignoring other goals such as environment and resources.It is difficult to coordinate among multiple goals,which leads to green and scientific early decision-making,poor combination of project planning,construction,and management,resulting in a large number of Resource waste,then how to comprehensively evaluate construction projects in the early planning stage,and make effective,reasonable and scientific decisions from many declared projects based on the principle of making full use of limited resources and realizing the maximum economic,social and environmental benefits of the project It is very important for the construction of green and livable villages and towns.This paper used regulatory theory,grounded theory,factor analysis,cost-benefit evaluation under environmental constraints,improved TOPSIS analysis and other related theoretical methods to study the multi-objective decision-making in the planning stage of green and livable villages and towns construction projects.First,analyzed the multi-objective decision-making elements of green livable villages and towns construction projects.According to the decision-making body and decision-making procedures of the project,the multi-objective decision-making of green livable villages and towns construction projects were mainly divided into government department decision-making and village collective organization decision-making.Staged decision-making mode and summarized the basic multi-objective decision-making process of green and livable villages and towns construction projects.Secondly,through grounded analysis of 60 documents,22 policies,related research materials,and case reports,a preliminary establishment of a multi-objective evaluation index system for construction projects under the decision of government departments and village collective organizations,and the use of SPSS software to measure the index questionnaire data Carrying out factor analysis to verify the rationality of the selected indicators,to achieve the optimization of indicators,and to determine the decision-making indicator system of government departments with multiple goals of environment,resources,economy,society,information,and risk,and the main goals of economy,society and environment of the decision-making index system of the village collective organization.Then,based on the quantification of environmental and social indicators,combined with decision-making indicators,a three-stage decision-making model for government departments based on regulation theory and improved TOPSIS,and a cost-benefit evaluation model for village collective organizations under environmental constraints were constructed respectively.Finally,three projects were selected for the three-stage decision-making of government departments.First,the environmental and social indicators of the three candidate projects were quantitatively calculated,and the traditional cost-benefit evaluations and cost-benefit evaluations under environmental constraints were performed on the projects.After cost control,the project’s ENPV,EIRR,and B/C all have different degrees of downward trends,with B/C dropping by about 10%,and some high-polluting projects have even changed directly from feasible to infeasible.Then,the cost-effectiveness and cost-effectiveness indicators are combined.Carry out improved TOPSIS analysis,comprehensively consider multiple goals in economically feasible alternative projects,make optimal decisions,provide reference for other green and livable villages and towns construction projects in the early stage of decision-making,and make project decisions more green and scientific.