Decision-making Research On Selection Of Relocated Land For The Shantytown Rebuilding Project On Value Engineering ——A Case Study Of Z City

Shantytown renovation is a livelihood project,which is an important part of the housing project for low-income families of government.Shantytown renovation can effectively improve the living conditions of relocated households and promote social harmony and progress,as well as intensively use urban land and promote local economic development.Shantytown renovation usually needs a large demand for funds and attaches equal importance to demolition and construction tasks.The proj ects not only emphasize social and environmental benefits,but also have special requirements for economic benefits.Therefore,from the perspective of government functional departments,limited by renovation funds,it is usually necessary to give priority to renovation of plots with greater value,and the most direct manifestation of this value is the ratio of function to cost.On the basis of fully summarizing and borrowing previous research results,this paper introduces the theory of value engineering and the current research situation and management practice of shantytowns abroad,and leads to the evaluation of site selection decision of demolition plots in shantytowns renovation projects by using value engineering.Based on the theory of value engineering,the basic data of different existing plots are collected,and the cost coefficient of shantytown renovation of alternative scheme is determined by multiple linear regression method.By analyzing the factors that affect the site selection decision of the demolished plots,the functional coefficients of each alternative scheme are determined by analytic hierarchy process.After calculating the value coefficient of each alternative scheme,the value coefficient is taken as the evaluation value to determine the optimal demolition plot.A reasonable and comprehensive evaluation index system is established to make the decision more reasonable by appropriate evaluation methods,which provides a reference basis for the current government functional departments to make site selection decisions for demolition plots.